@Research Paper
<#LINE#>Proximate and Phytochemical Studies of Exudate of Dacryodes edulis<#LINE#>Esiet@UDO Itoro , Obuzor@Gloria, Jnr@Michael Horsfall <#LINE#>1-7<#LINE#>1.ISCA-RJCS-2015-125.pdf<#LINE#>Department of Chemistry, University of Uyo, Uyo, Akwa Ibom State, Nigeria@Department of Pure and Industrial Chemistry, University of Port Harcourt, Nigeria@Department of Pure and Industrial Chemistry, University of Port Harcourt, Nigeria<#LINE#>22/8/2015<#LINE#>27/2/2016<#LINE#>Proximate and Phytochemical analysis of exudates of Dacryodes edulis has been studied and  proximate analytical result of exudate of Dacryodes edulis showed that the major chemical components present in exudate and the modified products were lipids and carbohydrate; while some of the mineral elements identified in purified, hydrolysed and saponified products were potassium, sodium, manganese, calcium and magnesium. Phytochemical screening showed the presence of alkaloids, saponins and resins as toxic substances. The IR spectra indicated the presence of –COOH (carboxylic), -OH (alcohol), N-H and C-N (protein) functional groups in the purified exudate, acid hydrolysis and saponification products, suggesting the presence of resin acid, fatty acids, fatty alcohols and protein in the exudate. From the results, Dacryodes edulis exudate could be useful in production of drugs for treatment of some ailments.<#LINE#>Puthiyandi V.V. and Chathoth V. (2014).@Comparative Studies on Proton conducting nature of Copper selective Tin Zirconium phosphate cation exchanger with its single salt counterpart.@Res. J. Chem. Sci. 4 (1), 84-90.@No$Akpabio U.D. (2013).@Pulp and Paper Making raw materials in Akwa Ibom State of Nigeria – A display guide at Raw Materials Research and Development Centre@Uyo.@No$Xiaopo Zhang and Harborne J.B. (2013).@Flavonoids.@Natural products of woody plants, DOI: 10.5772/55933.@No$Coppen J.J.W. (2013).@Non Wood Forest Product: Gums, Resins and Latexes of plant origin, Rome@Food and Agriculture organization of the United Nations, 20, 8-10@Yes$Okafor J.C. (2013).@Varietals delimitation in Dacryodes edulis.@John Willey and Sons, New York, 102-138.@No$Zaker Y., Hossain M.A., Paul and Isiam T.S.A. (2013).@Spectro-chemical Characterization of Rangpur (Sabjibari) soil Fraction of Bangladesh.@Res. J. Chem Sci., 3(9), 10 -17.@No$Gupta V., Singh S. and Gupta Y.K. (2013).@Synthesis and Antimicrobial Activity of some salicylaldehyde Schiff based of 2-aminopyridine@Res. J. Chem Sci., 9, 26.@No$Akpabio U.D., Akpakpan A.E., Udo U.E. and Essien U.C. (2012).@Physicochemical characterization of exudates from Raffia Palm (Raphia hookeri).@Pelagia Applied Science Research, 3(2), 838-843.@Yes$Whiteside P.J. (2012).@Introduction to Atomic Adsorption Spectrophotometer, 1st ed.@Pye-Unicam Ltd. 106–113.@No$Udo I.E., Akpabio U.D. and Akpakpan A.E. (2012).@Physicochemical studies on the hydrolysis and saponification product of Dacryodes edulis exudates.@Archives of Applied Science Research, 4(4) 1741-1747.@No$Anneline P., Wallace G. and Fry S.C. (2012).@Phenolic components of the plant cell wall.@International Rev. Cytol, 151, 102-117.@No$A.O.C.S. (2012).@Official and Tentative Method.@A.M. oil. Chem. Sci., 27, 249.@Yes$Ahmad M.Z., Mohd. A, Showkat R.M. and Markham L.R. (2011).@Triterpeniods.@Phytochemistry, 5(1), 548-550.@No$Vani S.R., Cheng S.F. and Chuah C.H. (2009).@Comparative study of volatile compounds from Ocimum.@American J of Applied Sci., 6(3), 523-8.@No$Hawley G.G. (2007).@The Condensed Chemical Dictionary. 15th Ed. Revised.@Van Nostrand Perinhold Comp., New York, 209.@No$BeMiller J.N. (2006).@Carbohydrate. Natural Products of woody plant, Springer-verlag.@Berlin, 861–880.@No$Gary A.S. (2002).@Handbook of pulp and paper technology, 2nd ed.@Van No strand, New York, 55-367.@No$Gupta M.K., Trease G.E. and Evans W.C. (2009).@Text Book of Pharmacognosy.@13th ed. Bailliere Tindal, London, 54-63.@No$Bangash E.K, Ahmad T., Atta S and Zeb A. (2004).@Effects of irradiation on the storage stability of gum.@J. Chinese Chemical Society, 51, 991-995.@Yes$A.O.A.C. (2003).@Official Methods of analysis; Association of Analytical Chemists.@17th ed. 2nd Revised. Washington D.C., USA, 80-90.@Yes$A.O.A.C. (2002).@Official Methods of analysis; Association of Analytical Chemists.@17th ed. 1st Revised, Washington D.C., USA, 1200-1240.@Yes$Trease G.E. and Evans W.C. (2001).@Text Book of Pharmacognosy.@14th ed., WB Saunders Company Limited, U.K., 612.@No$Verheij E.W.M. (2002).@Dacryodes edulis (G.Don) H. J. Lam. Record from Protabase.@Oyen, L.P.A. and Lemmens, R.H.M.J. (Editors). PROTA (Plant Resources of Tropical Africa / Ressources végétales de l’Afrique tropicale), Wageningen, the Netherlands.@Yes$Kalita J.N. and Mahanta P.K. (1993). 3Analysis of mineral composition of some Assam and Darjeeling black tea.@J. Sc., Food and Agric., 62, 105-109.@undefined@Yes$Shib A. (2014).@Seasonal Variation in Physico-chemical characteristic of Rudrasa gar Wetland- Ramsar site, Tripua, North East, India.@Res. J. Chem. Sci., 4(1) 31-40.@Yes
<#LINE#>Effect of different Concentrations on Mechanical Properties of Polymer Composites<#LINE#>Haq@Zia-ul, khattak@Azim khan, Khan@Farmanulla, Athar@Ali, khan@Shahid ullah,khan@Zahid  <#LINE#>8-15<#LINE#>2.ISCA-RJCS-2015-130.pdf<#LINE#>Institute of Chemical Sciences, Gomal University Dera Ismail Khan 29050, KPK-Pakistan@Institute of Chemical Sciences, Gomal University Dera Ismail Khan 29050, KPK-Pakistan@Institute of Chemical Sciences, Gomal University Dera Ismail Khan 29050, KPK-Pakistan@Department of Chemistry, University of Science and Technology Bannu 28100, KPK-Pakistan@Department of Physics, University of Science and Technology Kohat 28100, KPK-Pakistan@Department of Physics, University of Science and Technology Kohat 28100, KPK-Pakistan<#LINE#>8/9/2016<#LINE#>14/12/2015<#LINE#>Fiberglass is widely used in the preparation of materials such as bus bodies, aero planes, chairs, tables, in the preparation of various instruments etc. The reason for such important applications of fiberglass is that it is hard like steel and iron materials but have advantage over these that it is not rusted. It has also low weight like plastic materials. It can also be recycled and reused. In our current study we have prepared various samples of Fiberglass by hand lay –up operation method and studied the mechanical properties of these samples using Universal Test Machine. The effect of changing concentrations of various constituents is studied.<#LINE#>Pithily H. (2009).@An experimental investigation of wear of glass of fiber epoxy resin and glass fiber polyester composite materials.@J. European polymer, 45, 149-154.@Yes$Edwards K.L. (1998).@An overview of the technology of fiber reinforced plastics for design purposes.@Material and Design. 19(1-2), 1-10.@Yes$Nawy Edward. G. (2001).@Fundamentals of high-performance concrete (2nd.).@John Wiley and Sons., 310, ISBN 9780471385554.@Yes$Mayer Rayner M. (1993).@Design with reinforced plastics.@Springer, 7, ISBN 9780850722949.@Yes$Gupta V.B. and Kothari V.K. (1997).@Manufactured Fiber Technology.@Chapman and Hall publishing London, 544-546.@No$Milos V.B. (1990).@Technical approach to glass.@New York, Elsevier.@No$Frank P.I. and David P.D. (1990).@Fundamental of heat and mass transfer (3rd Ed).@John Wiley and sons, A 11-12.@No$Ilschner B. et al. (2000).@Composite materials, Ullmann’s Encyclopedia of Industrial chemistry Weinheim, Germany.@Wiley-VCH Verlag GmbH and Co.KGaA).@No$Erhard G. (2006).@Designing with plastics Trans.@Martin Thompson. Munich: Hanser publishers.@No$New recycling effort (2009).@Aims to push KC to go green with its glass.@Kansas City, star, posted on Kansas city.com.@Yes$North American Insulation Manufacturers Association (2009).@FAQ.@undefined@Yes$Pastureau P. (1907).@Le Superoxyde de la methylethylcelone@Comptes Rendus, 144, 90-93.@No$Milas N.A. and Goluboric (2012).@Studies in Organic Peroxide.@XXV. Preparation, Separation and Identification of Peroxides derived from Methyl Ethyl Ketone and Hydrogen peroxide.@Yes$Yuan M.H., Shu C.M. and Kossoy A.A. (2005).@Kinetics and hazards of thermal decomposition methyl ethyl ketone peroxide by DSC.@Thermochemica acta, 430, 67-71@Yes$Martin J.L. (1999).@Kinetic analysis of an asymmetrical DSC peak in the curing of an unsaturated polyester resin catalysed with MEKP and cobalt octoate.@Polymer, 40, 3451.@Yes$Martin J.S., Laza J.M. and Morras M.L. (2000).@Study of the curing process of a vinyl ester resin by means of TSR and DMTA.@Polymer, 41, 4203.@Yes$Liaw H.J., Chen C.J. and Yar C.C. (2001).@The multiple runaway-reaction behavior prediction of MEK–oxidation reactions.@J. loss Pre. Process Ind. 14, 371.@Yes$Yeh P.Y., Shu C.M. and Duh Y.S. (2003).@Thermal hazard analysis of methyl ethyl ketone peroxide.@Ind. Eng. Chem. Res., 42, 1.@Yes$Rhim J.W., Park H.B., Lee C.S., Jun J.H., Kim D.S. and Lee Y.M. (2004).@Crosslinked poly (vinyl alcohol) membranes containing sulfonic acid group: proton and methanol transport through membranes.@J. Memb. Sci., 238, 143.@Yes$Kumar G.G., Uthirakumar P., Nahm K.S. and Elizabeth R.N. (2009).@Fabrication and electrochemical properties of PVA /Para Toluene Sulphonic acid membranes for the applications of DMFC.@Solid State Ionics. 180, 282-287.@No$Bill Meyer F.W. (2007).@Text book of polymer Science, 3rdEdition, John Wiley and sons.@New York.@No$Langenheim J. (2003).@Plant Resins.@Chemistry, evolution, ecology, and ethno botany, Timber Press, Portland.@Yes$Ulrich Poth. (2002).@Drying Oils and Related Products.@Ullmann@Yes
<#LINE#>The Effect of 1, 3, 5-trimethyl-2, 6-diphenyl piperidin-4-one oxime on the Electrochemical Behaviour of Mild Steel in HCl Medium<#LINE#>Tharini @K.,Raja @K.,A.N.@Senthilkumar  <#LINE#>16-19<#LINE#>3.ISCA-RJCS-2015-149.pdf<#LINE#>PG and Research Department of Chemistry, Govt. Arts College, Tiruchirappalli – 22, TN, India@PG and Research Department of Chemistry, Govt. Arts College, Tiruchirappalli – 22, TN, India@PG and Research Department of Chemistry, Alagappa Government Arts College, Karaikudi - 630 003 India<#LINE#>27/10/2015<#LINE#>5/1/2016<#LINE#>Corrosion inhibitive performance of synthesized heterocyclic compound namely 1, 3, 5-trimethyl-2, 6-diphenyl piperidin-4-one oxime (TPO) was tested by weight loss study, electrochemical methods and SEM studies in 1M hydrochloric acid (HCl) medium against mild steel (MS). The weight loss studies were conducted at three different temperatures such as 30oC, 40oC and 50oC for various concentrations (0, 25, 50,100, 200 and 300 ppm) for 2h duration. The study revealed that the inhibition efficiency had positive correlation with enhancing TPO concentration and negative correlation with raising temperature. TPO adsorbs physically over mild steel surface obeying Temkin’s isotherm. Electrochemical parameters such as corrosion potential (Ecorr), corrosion current (icorr) and Tafel slopes (ba and bc) were determined using Tafel plot. The results showed that TPO decreases corrosion current significantly and behaves as mixed mode inhibitor. AC impedance measurement as determined by Nyquist plot were utilized to calculate the charge transfer resistance (Rct) and double layer capacitance (Cdl) whose results tribute each other. SEM studies revealed the film forming ability of TPO in HCl medium.<#LINE#>Senthilkumar A.N., Tharini K. and Sethuraman M.G. (2009).@Corrosion inhibitory effect of few piperidin-4-one oximes on mild steel in hydrochloric medium.@Surf Rev Lett., 16(1), 141.@Yes$Senthilkumar A.N., Tharini K. and Sethuraman M.G. (2012).@Steric Effect of Alkyl Substituted Piperidin-4-one Oximes for Corrosion Control of Mild Steel in H2SO4 Medium.@Acta Phys. Chim. Sin., 28(2) 399@Yes$Senthilkumar A.N., Tharini K. and Sethuraman M.G. (2011).@J. Mater. Engg and Perform, 26(2), 969@undefined@No$Stoyanova A.E., Sokolova E.I. and Raicheva S.N. (1997).@The inhibition of mild steel corrosion in 1 M HCL in the presence of linear and cyclic thiocarbamides—Effect of concentration and temperature of the corrosion medium on their protective action.@Corros, 39(9) 1595.@Yes$Baliah V. and Noller C.R. (1948).@The preparation of some piperidine derivatives by the Mannich reaction.@J. Am. Chem. Soc. 70, 3853.@Yes$Senthilkumar A.N. and Sethuraman M.G. (2008).@Corrosion inhibition potential of sulfadimidine.@Corr. Rev., 26(1), 23.@Yes$Ashassi-Sorkhabi H., Majidi M.R. and Seyyedi K. (2004).@Investigation of inhibition effect of some amino acids against steel corrosion in HCl solution.@App. Sur. Sci., 225, 176.@Yes$Ebenso E.E., Okafor P.C. and Ekpe U.f. (2003).@Anti. Corros. Met. Mat, 50(6), 414.@undefined@Yes$Yurt A., Balaban A., Ustun Kandemir S., Bereket G. and Erk B. (2004).@Investigation on some Schiff bases as HCl corrosion inhibitors for carbon steel.@Mat. Chem. Phy., 85, 420.@Yes
<#LINE#>Potent Antimicrobial agents derived from Combination of Transition metal with Sulfa drugs<#LINE#> Patel@Hitesh R, Patel@Asha D <#LINE#>20-24<#LINE#>4.ISCA-RJCS-2016-008.pdf<#LINE#>Department of Chemistry, M N College, Visnagar, 384315, Gujarat, India@Department of Chemistry, M N College, Visnagar, 384315, Gujarat, India<#LINE#>21/1/2016<#LINE#>4/3/2016<#LINE#>In the present study a noval 4-oxo - 4-[{4-(N-(thiazol-2-yl)sulfamoyl) phenyl} amino] butanoic acid  (OTSPAB) was prepared by reaction of succinic anhydride with Sulphathiazol. The prepared ligand was exemplified by physical and spectroscopic  studies. The transition metal complexes viz. Cu2+, Ni2+ , Co2+, Mn2+ and  Zn2+  of OTSPAB were synthesized and characterized by different properties. All the prepared metal complexes and ligand were studies as antimicrobial agent. Among all the metal complexes, Zn2+ and Cu2+ metal complexes have shown significant activity.<#LINE#>Chohan Z.H., Praveen M. and Ghaffar A. (1997).@Structural and biological behaviour of Co (II), Cu (II) and Ni(II) metal complexes of some amino acid derived Schiff-bases.@Metal-Based Drugs, 4(5), 267–272.@Yes$Chohan Z.H., Scozzafava A., Supuran C.T. (2002).@Unsymmetrical 1,1-disubstituted ferrocenes: synthesis of Co(II), Cu(II), Ni(II)and Zn(II) chelates of ferrocenyl -1- thiadiazolo-1_-tetrazole, -1-thiadiazolo-1_ -triazole and -1-tetrazolo-1_ -triazole with antimicrobial properties.@Journal of Enzyme Inhibition and Medicinal Chemistry, 17(4), 261–266.@Yes$Chohan Z.H. and Kausar S. (1993).@Synthesis, structural and biologicalstudies of nickel (II), copper(II) and zinc(II) chelates with tridentate Schiff bases having NNO and NNS donor systems.@Chemical and Pharmaceutical Bulletin, 41(5), 951–953.@Yes$Ul-Hassan M., Chohan Z.H., Scozzafava A. and Supuran C.T. (2004).@Carbonicanhydrase inhibitors: Schiff’s bases of aromatic and heterocyclicsulfonamides and their metal complexes.@Journal of Enzyme Inhibition and Medicinal Chemistry, 19(3), 263–267.@Yes$Ul-Hassan M., Chohan Z.H., Supuran C.T. (2002)@Antibacterial Zn(II) compounds of Schiff bases derived from some benzothiazoles.@Main Group Metal Chemistry, 25(5), 291296.@Yes$Chohan Z.H., Scozzafava A. and Supuran C.T. (2003).@Zinc complexes ofbenzothiazole-derived chiff bases with antibacterial activity.@Journal of Enzyme Inhibition and Medicinal Chemistry, 18(3), 259–263.@Yes$Seven M.J. and Johnson L.A. (1960).@Metal Binding in Medicine.@4th ed. Philadelphia, Pa: Lippincott; 19-22.@Yes$Srivastava R.S. (1990).@Studies on some antifungal transition metal chelates of 2-(2- hydroxybenzylideneamino) benzimidazole.@Indian Journal of Chemistry, 29A, 1024-1029.@Yes$Patel V.K., Vasanwala A.M. and Jejurkar C.N. (1989).@Synthesis of mixed Schiff base complexes of copper (II) and nickel (II) and their spectral, magnetic and antifungal studies.@Indian Journal of Chemistry. 28A, 719.@Yes$Maggio F., Pellerito A., Pellerito L., Grimaudo S., Mansueto C. and Vitturi R.(1994).@Organo metallic complexes with biological molecules II. Synthesis, solid-state characterization and in vivo cytotoxicity of diorganotin(IV)chloro and triorgano tin (IV) chloro derivatives of penicillin G.@Applied Organometallic Chemistry, 8(1),71–85.@Yes$Vitturi R., Mansueto C., Gianguzza A., Maggio F., Pellerito A. and Pellerito L.(1994).@Organometallic complexes with biologicalmolecules. III: in vivo cytotoxicity of diorganotin (IV) chloroand triorganotin (IV) chloro derivatives of penicillin g on chromosomesof aphanius fasciatus (pisces, cyprinodontiformes).@Applied Organometallic Chemistry, 8(6), 509–515.@Yes$Pellerito L., Maggio F., Consigilo A., Pellerito A., Stocco G.C. and Gremaudo S. (1995).@Organometallic complexes with biologicalmolecules. IV: Di- and tri-organotin (IV) amoxicillin derivatives: Solid-state and solution-phase spectroscopic investigations.@Applied Organometallic Chemistry, 9(3), 227–239.@Yes$Vitturi R., Zava B., Colomba M.S., Pellerito A., Maggio F. and Pellerito L. (1995).@Organo metallic complexes with biological molecules. V: invivo cytotoxicity of diorgano tin(IV)- amoxicillin derivatives inmitotic chromosomes of rutilus rubilio (pisces, Cyprinidae).@Applied Organometallic Chemistry, 9(7), 561–566.@Yes$Rosenberg B. and Van Camp L. (1970).@The successful regression of large solid sarcoma 180 tumors by platinum compounds.@Cance Research, 30(6), 1799–1802.@Yes$Cleare M.J. and Hoeschele J.D. (1973).@Studies on the antitumor activity of group VIII transition metal complexes. I. Platinum (II) complexes.@Bioinorganic Chemistry, 2(3), 187–210.@Yes$Narayanan V.A., Nasr M. and Paull K.D. (1990).@Tin Based Antitumour Drugs.@Berlin, Germany: Springer, NATO ASI Series, Vol H 37.@No$Crowe A.J. (1988).@The antitumour activity of tin compounds.@Metal Based Antitumour Drugs. Vol. 1. London, UK: Freud, 103–149.@Yes$Saxena A.K. (1987).@Organotin compounds: toxicology and biomedicinal applications.@Applied Organometallic Chemistry. 1(1), 39–56.@Yes$Furst A. (1963).@The Chemistry of Chelation in Cancer.@3rd ed. Springfield, Ill: Thomas; 67-74.@No$Williams D.R. (1972).@Thermodynamic considerations in coordination.@Part X. A. potentiometric and calorimetric investigation of copper(II) histidine complexes in solution. Journal of the Chemical Society. Dalton Transactions, 7, 790–797.@Yes$Jones A.D. and Williams D.R. (1971).@Thermodynamic considerations inco-ordination.@Part IX. Heat capacity investigations into complex formation between some lanthanide (III) ions and histidine. Journal of the Chemical Society A. 3159–3162.@Yes$Pratt J.M. (1972).@Inorganic Chemistry of Vitamin B12.@London, UK: Academic Press.@Yes$Shapiro S.K. and Schlenk F. (1965).@Transmethylation and Methionine Biosynthesis.@Chicago, Ill: University of Chicago Press.@Yes$Vullo D., De Luca V., Scozzafava A., Carginale V., Rossi M., Supuran C.T. and Capasso C. (2013).@The extremo-&#945;-carbonic anhydrase from the thermophilic bacterium Sulfurihydrogenibium azorense is highly inhibited by sulfonamides.@Bioorg. and Med., Chem., 21, 4521@Yes$Wilson C.O., Gisvold O., Block J.H. (2004).@Wilson and Gisvold’s Textbook of Organic Medicinal and Pharmaceutical Chemistry@11th ed., Block J., Beale J.M., Eds., Lippincott Williams and Wilkins: Philadelphia.@Yes$Levin J.I., Chen J.M., Du M.T., Nelson F.C., Killar L.M., Skala S., Sung A., Jin G., Cowling R., Barone D., March C.J., Mohler K.M., Black R.A. and Skotnicki J.S. (2002).@Anthranilate sulfonamide hydroxamate TACE inhibitors.@Part 2: SAR of the acetylenic P1’ group. Bioorg. and Med. Chem. Lett., 12, 1199.@Yes$Kim D.K., Lee J.Y., Lee N., Ryu D.H., Kim J.S., Lee S., Choi J.Y., Ryu J.H., Kim N.H., Im G.J., Choi W.S. and Kim T.K. (2001).@Synthesis and phospho  diesterase inhibitory activity of new sildenafil analogues containing a carboxylic  acid group in the 5’-sulfonamide moiety of a phenyl ring.@Bioorg. and Med. Chem., 9, 3013.@Yes$Hu B., Ellingboe J., Han S., Largis E., Lim K., Malamas M., Mulvey R., Niu C., Oliphant A., Pelletier J., Singanallore T., Sum F.W., Tillett J. and Wong V. (2001).@Novel (4-Piperidin-1-yl)-phenyl Sulfonamides as Potent and Selective Human b3 Agonists.@Bioorg. and Med. Chem., 8, 2045.@Yes$Patil B.R. (2006).@Synthesis and characterization of matel complex.@Oriental J. Chem., 18, 547.@No
<#LINE#>Synthesis and Characterization of 2H-3(o-nitrophenyl)-3,4-dihydro-Chloro-1,3-benzoxazine  studies of Antimicrobial and Antifungal activity<#LINE#> Indorkar@Dilesh,Chourasia @O.P.,Limaye @S.N. <#LINE#>25-31<#LINE#>5.ISCA-RJCS-2016-013.pdf<#LINE#>Department of Chemistry, Dr. H.S. Gour Central University Sagar, GDC Sausar, MP, 470 003, India@Department of Chemistry, Dr. H.S. Gour Central University Sagar, GDC Sausar, MP, 470 003, India@Department of Chemistry, Dr. H.S. Gour Central University Sagar, GDC Sausar, MP, 470 003, India<#LINE#>29/1/2016<#LINE#>17/2/2016<#LINE#>4H-3,1-Benzoxazinone derivatives bear saturated aliphatic substituent’s at key position e.g. CH3, CH2COCH3, CH2CN, C3H7(n) and CH2CH2COOH, have electronically unsaturated character which make their synthesis difficult because their are not satisfactorily stable rings (so called dynamic benzoxazinones) New organic substituent’s with special properties in steric and electronic manner helped to solve this problem. Synthesis and behavior of 2-carboxyvinyl-4H-3,1-Benzoxazinone towards nucleophiles have been reported with the aim of studying the effect of conjugated double bond and the stability of oxazinone ring via the interaction of 3,5-dibromoanthanilic acid viz. maleic anhydride in boiling n-butanol. One of the most important features in 4H-3, 1-Benzoxazinone chemistry is their use as key starting materials for synthesizing new heterocyclic systems with potential biological activity. The present work is in conjugation with our ongoing programe on the utilizing of readily obtainable starting materials for the synthesis of heterocyclic systems.<#LINE#>Aziz G., Nosser M.H., Doss N.L. and Rizik A.B. (1976).@Ind. J. Chem., 286, 14B.@undefined@No$Jamode V.S. (1977).@Synthetic Studies of N and O Containing Heterocyclic Compds.@Ph.D. Thesis, Nagpur University.@No$Rajput P.R. (1993).@Synthesis of N and O containg Heterocyclic Compounds@Ph.D. Thesis, Amaravati University.@No$Kedar R.M. (1993.).@Synthesis of O, N and S Containing heterocyclic Compounds@Ph.D thesis, Amaravati University@No$Barnes and Spriggsis A.S. (1945).@J. Am. Chem., Soc., 67, 134.@undefined@Yes$Reddy C.V., Sadtey K., Srinivas R., Rastogi K. and Jain M.L. (1989).@Ind. J. Chem., 28b, 1096.@undefined@No$Jpn K.K., Pat J. (1984).@5936683, 8436183@Chem. Abstr., 101, 110940T.@No$Mukherjee A., Kumar S., Seth M. and Bhaduri A.P. (1989).@Ind. J. Chem., 28b, 391.@undefined@Yes$William J.H. and Eicen R. (1983).@J. Med. Chem., 26, 765.@undefined@No$Purohit M. and Shrivastava S.K. (1991),@Proc. Nat. Ace. Sci., 61a, 462.@undefined@No$Bennett L.L. and Harry T.B. (1957).@J. Am. Chem. Soc. 79, 2188.@undefined@Yes$Nimura K., Niwano Y., Ishiduka S. and Fukumoto R. (2001).@Int. J. Antimicrobial Agents, 18, 2, 173-178.@undefined@Yes
<#LINE#>Physicochemical Characteristics of Cassava Tuber and Cassava Meals from Eleme Local Government Area of Rivers State, Nigeria<#LINE#> Moremi@Oluremilekun Opeyemi,Jnr@Michael Horsfall ,Orubite@Kaine Okorosaye <#LINE#>32-37<#LINE#>6.ISCA-RJCS-2016-017.pdf<#LINE#>Department of Pure and Industrial Chemistry, University of Port Harcourt, PMB 5323, Port Harcourt,  Rivers State, Nigeria@Department of Pure and Industrial Chemistry, University of Port Harcourt, PMB 5323, Port Harcourt,  Rivers State, Nigeria@Department of Pure and Industrial Chemistry, University of Port Harcourt, PMB 5323, Port Harcourt,  Rivers State, Nigeria<#LINE#>4/2/2016<#LINE#>7/3/2016<#LINE#>Cassava tuber was obtained from four towns in Eleme Local Government Area and processed into four different meals that is: cassava flour, cassava fufu, cassava garri and cassava tapioca. The least value of pH (4.8) occurred in garri samples from Ebubu town while the highest value of pH (7.9) occurred in cassava tuber sample from Onne town. The least value obtained for conductivity (254 µs/cm), occurred in cassava tuber from Onne while the highest value of conductivity (475 µs/cm) was obtained in cassava tapioca from Ebubu. The result obtained for total organic carbon was lowest (52.80 %) in cassava tapioca from Ebubu while the highest value (66.66 %) occurred in cassava tapioca from Eteo. The least value obtained for total nitrogen content (0.07 %) occurred in cassava fufu from Eteo while the highest value for total nitrogen content (3.64 %) occurred in cassava tuber from Ebubu. The results obtained from this work showed that the pH of cassava flour from various sampling locations were the closest to neutral with a mean value of 7, while the pH of garri from various sampling locations were the most acidic with a mean value of 5.5.<#LINE#>Ra hites, ja foran, do carpenter, mc hamilton (2004).@Global assessment of organic contaminants in farmed salmon. Fao (food and agricultural organization) of united nations.@Annual statistics. Rome, italy.@Yes$Eagleston G.B., Okoye M.B. and Jeon V.M. (1992).@Traditional African Methods of Cassava Processing and Utilisation and Research Needs.@In Tropical Root Crops Production of Roots Crops-Based Industries. 4-6.@Yes$Ene L.S.O. (1992).@Production and utilization of cassava in nigeria: prospects for food security and infant nutrition.@Prospects for processing and utilization of root and tuber crops. In national root crops promotion of root crop-based industries. 7-11, 21.@Yes$Azaino E. (2008).@Business opportunities in the cassava value chain in Nigeria.@A paper presented at Agricultural Product Workshop Organized by Uptonville Foundation by Rivers State Sustainable Development Agency. Port Harcourt.@Yes$Nwokoro S.O., Orheruata A.M. and Ordiah P.I. (2002).@Replacement of maize with cassava sievates in cockerel starter diets: effect on performance and carcass characteristics.@Tropical animal health and production, 37 (6), 495 -501.@Yes$Ojeniyi E.T. (2001).@Processing and economics of production of lesser known cassava food products in South-Western Nigeria.@In: Akoroda, M.O. and Ngeve, J.M. (Eds). Root crops in the 21st century. Proceeding of the International Society for Tropical Root Crops: Africa Branch (ISTRC-AB) Cotonou, Benin.@No$Ag Iyagba (2010).@A review on root and tuber crop production and their weed management among small scale farmers in nigeria.@Aprn journal of agricultural and biological science. 5(4), 52-58.@Yes$B Maziya-Dixon (2004).@Nigeria food consumption and nutrition survey, 2001-2003: summary.@Federal ministry of health, Nigeria.@Yes$Mak Ogunjobi and So Ogunwolu (2010).@Physicochemical and sensory properties of cassava flour biscuits supplements with cashew apple powder.@Journal of  Food Technology, 8(1), 24-29@Yes
<#LINE#>Total extractible concentration of Manganese, Cobalt, Nickel, Copper and Zinc in Soils of Children’s playground within Owerri metropolis, Imo State, Nigeria<#LINE#> Verla@Evelyn N., Jnr@Horsfall M.,Orubite@ K.O. <#LINE#>38-47<#LINE#>7.ISCA-RJCS-2016-020.pdf<#LINE#>Department of Environmental Technology, Federal University of Technology Owerri, Imo State, P. M. B. 1526, Nigeria@Department of Pure and Industrial Chemistry, College of Natural and Applied Sciences,  University of Port Harcourt, P. M. B. 5323, Port Harcourt, Nigeria@Department of Pure and Industrial Chemistry, College of Natural and Applied Sciences,  University of Port Harcourt, P. M. B. 5323, Port Harcourt, Nigeria<#LINE#>16/2/2016<#LINE#>12/3/2016<#LINE#>Surface soil samples from 9 public school playgrounds across Owerri metropolis were investigated for concentration of single extraction with nitric acid and total extractible metals as sum of species using various extractants. For both total metal determination and sequential extraction procedure, metal concentrations were quantified with A ANALYST 400 Perkin Elmer AAS. Results revealed that total extractible Zn (172.67 ± 65.07 mg/kg) > Mn (99.14 ± 53.58 mg/kg) > Cu (60.18 ± 25.88 mg/kg) > Ni (55.13 ± 15.61 mg/kg), and Co (9.61 ± 3.88 mg/kg) showed higher concentrations in dry season but were much lower than WHO standards and values reported elsewhere. Although percent metal recoveries for rainy season were abnormally high, the mean recovery values ranged from 95 – 188%, indicating good analysis. All playgrounds studied in the three years showed positive correlation with at least one other metal with Pearson’s correlation coefficient ranging from 0.019 to 1 and then strongly negative for a few metals suggesting that all playgrounds had metals from a common source. Two groups of metal – metal correlations were observed ie one group showing strongly negative and all others were weakly positive.<#LINE#>Turer D. (2000).@Heavy Metal Pollution of Roadways from vehicular and non- vehicular sources, Cincinnati, Ohio and Corpus Christi, TX.@Ph.D Dissertation, University of Cincinnati Ohio.@Yes$Horsfall M. Jnr. (2011).@Chemistry and heavy metals are Janus faced.@An inaugural lecture series no. 81st, Department of pure and Industrial chemistry, university of Port Harcourt, November.@Yes$Friberg L., Kjellstroem T., Nordberg G.F., Friberg L, Nordberg G.F and Vonk V.B (eds.) (1986).@Handbook on the Toxicology of Metals@Volume 11. Elsevier, Amsterdam. New York. Oxford. 130-184.@No$Iwegbue C.M.A., Nwajei G.E.,  Eguavoen O. and Ogala J.E. (2009).@Chemical Fractionation of Some Heavy Metals in Soil Profiles in Vicinity of Scrap Dumps in Warri, Nigeria.@Chemical Speciation and Bioavailability. 21(2), 99-110.@Yes$Ayodele J.T. Gaya and U.M. Chromium (1998).@Zinc and Manganese in Kano Municipality Street Dust.@Journal of Chemical Society of Nigeria, 23, 24-31.@Yes$Jaradat Q.M., Monani K.A. (1999).@Contamination of roadside soil, plant and air with heavy metal in Jordan, a comparative study.@Turkish. J. Chem., 23, 209-220.@Yes$Centers for Disease Control and Prevention (CDCP) (2005).@Preventing Lead Poisoning in Young Children.@Centers for Disease Control, Atlanta, GA.@Yes$Verla E.N., Spiff A.I. and Horsfall M. Jnr.  (2015).@Physico chemical Characterization of Playgrounds Soils of public Schools in Owerri metropolis, Imo State, Nigeria.@International journals of innovations and applied studies, 13(2), 472-480.@Yes$Surech vir singh rana (2008).@Metals and apoptosis: Recent development.@Journal of Trace Element in Medicine and Biology (elsvier), 22, 262-284.@Yes$Chambers J.E., Boon S.J., Carr R.L., Chambers H.W. and Straus D.L. (2002).@Biomarkers as predictors in health and ecological risk assessment.@Human Ecology Risk Assessment, (8), 165-176.@Yes$Verla E.N, Verla A.W. and Ugwulor  L. (2015).@Seasonal Variation of Heavy Metals in Playgrounds of Public Schools   within Owerri Metropolis, Imo State, Nigeria.@International Letters of Chemistry, Physics and Astronomy, 50, 61-70.@Yes$Hant Y.M., Du P.X., Cao J. J. and Posmentier E.S. (2006).@Multivariate analysis of heavy metal contamination in urban dusts of Xi’an, Central China.@Science Total Environment, (355), 176–186.@Yes$Horsfall M. Jnr. and Spiff A.I. (2013).@Principles of Environmental pollution, and toxicology and waste management.@Onyoma Research Publications, 16-17.@No$Nriagu J., Oleru T.N., Cudjoe C. and Chine A. (1997).@Lead poisoning of children in Africa, III. Kaduna, Nigeria.@The Sc. of the Tot. Environ., 197, 13-19.@Yes$UNICEF (1997).@Childhood Lead Poisoning: Information for Advocacy and Action.@3 UN Plaza, New York, NY 10017, U.S.A.@Yes$Herber F.R.M., Verschoor M.A. and Wibowo A.A.E. (1988).@A review of the kinetics and kidney effects of Cadmium – Recent epidemiological studies. In: Hutzinger O. and Safe S.H. (eds.) Environmental Toxins@Volume 2, Cadmium (Vol. eds.: Stoeppler M and Piscator M). Springer, Berlin-Heidelberg. New York-London- Paris-Tokyo, 115- 133.@Yes$Tsuchiya K. (1978).@Cadmium Studies in Japan: A Review.@Kodansha Ltd. Tokyo- Elsevier/North Holland Biomedical Press, Amsterdam- New York- Oxford.@Yes$Fischer A.B. (1987).@Mutagenic effects of cadmium alone and in combination with antimutagenic selenite.@6th International Conference on Heavy Metals in the Environment, New Orleans, Vol. 2. CEP Consultants Ltd, Edinburgh. 112-114.@Yes$Kazantzis G. (1987).@The mutagenic and carcinogenic effect of cadmium. An update.@Journal of Toxicology and Environmental Chemistry, 15, 83-100.@Yes$Heinrich U. (1988).@Carcinogenicity of cadmium: Overview of experimental and epidemiological results and their influence on recommendations for maximum concentrations in the occupational area.@Hutzinger O and Safe SH (eds.) Environmental Toxins, Volume 2, Cadmium. (Vol. eds.: Stoeppler M and Piscator M). Springer, Berlin-Heidelberg. New York-London-Paris-Tokyo. 13-15.@Yes$Lansdown R. (1986).@Lead, intelligence attainment and behavior.@In Lansdown R and Yule W edition. The Lead Debate. Croom Helm, London-Sydney. 235-270.@Yes$Needleman H.L. (1987).@Low level lead exposure and children&#8223;s intelligence: A quantitative and critical review of modern studies.@Proc. 6th Int. Conf. on Heavy Metals in the Environment, New Orleans. Volume 1. CEP Consultants Ltd., Edinburg. 1-8.@Yes$Orajaka S.O. (1975).@Geology.@Nigeria in maps: Eastern States. Ofomata, G.E.K. (Ed.). Ethiope Publishers. Benin city Nigeria, 5-7.@Yes$FDALR (1985).@The reconnaissance soil survey of Imo state, Nigeria@Federal Department of Agricultural Land Resources. Soil report. 133-134.@No$Verla E.N., Spiff A.I. and Horsfall M. Jnr. (2015).@A Preliminary Survey of Heavy Metals Concentrations in Children playground Within Owerri Metropolis, Imo State, Nigeria.@Research Journal of Chemical Sciences. 5(11), 1-6.@No$Onweremadu E.U., Eshett E.T. and Osuji G.E. (2007).@Temporal variability of selected heavy metals in automobile soils.@International Journal of Environmental Science and Technology, 4(1), 35-41.@Yes$Onweremadu E.U., Amaechi J.U. and Ndukwu B.N. (2011).@Vertical Distribution of Cadmium and Lead on Soils Affected by Metropolitan Refuse Disposal in Owerri, Southeastern Nigeria@Iranica Journ. of Ergy and Environ., 2(1), 62-67.@Yes$Elbassam M. et. al., Anraeicherung and Verlagerung Von. (1977).@Cadmium in Bodem Furch zn fnr ko mmunaler seed lung Sab Falle.@Land Wirtsh, (30), 215–220@No$Finžgar N., Tlustoš P. and Leštan D. (2007).@Relationship of soil properties to fractionation, bioavailability and mobility of lead and zinc in soil.@Plant Soil Environment, 53(5), 225–238.@Yes$Adekunle M., Ndahi N.P. and Owolabi D.A. (2003).@Levels of some Hazardous Trace Metals and Simulated Blood lead levels from Highway soils of South- western Nigeria@International Journal of Enviromental Issues, 1(1), 4-9.@No$WHO (2001).@Environmental Health Criteria No. 221: Zinc@World Health Organization, Geneva.@Yes$Mostert M.M.R. (2008).@Levels of pollutants on surfaces of children’s playgrounds situated in Public Park.@A thesis submitted to Queensland University of Technology. USA.  28-184.@Yes$Ludwig Huber. (2015).@Validation of Analytical Methods and Procedures.@Free monthly Newsletter, Keep yourself up-to-date. 7.@No$Verla E.N, Verla A.W., Horsfall M Jr. and Spiff AI. (2015).@Assessment of some heavy metal in childrens playgrounds in Owerri metropolis, Imo state, Nigeria.@Journal of Chemical Society of Nigeria, 50, 44-50.@Yes$Luo W.H., Zhang Y. and Li H. (2003).@Children’s blood lead levels after the phasing out of leaded gasoline in Shantou, China.@Archives of Environmental Journal and Environmental Health, 58, 184–187.@Yes$Ure A.M., Davidson C.M. and Thomas R.P. (1995).@Single and sequential extraction schemes for trace metal speciation in soil and sediment.@Technical Instrumental Analytical Chemistry, 17, 505–523.@Yes$Stutter M.I., Deeks L.E. and Billet M.F. (2004).@Spatial variability in soil ion exchange chemistry in a granitic upland catchment.@Soil Sci. Soc. Am. J., 68, 1304-1314.@Yes$De Miguel E.I. and Iribarren E. (2006).@Chacon, A. Ordonez and S. charlesworth. Risk based evaluation of the exposure of children to trace element in playground in Madrid, Spain.@Chemosphere. 23 (4), 874 – 882.@Yes$Lam K.C., Ng S.L., Hui W.C. and Chan P.K. (2005).@Environmental quality of urban parks and open spaces in Hong   Kong.@Environmental Monitoring and Assessment.  111, 55–73.@Yes$Aliyu M., Zakari Y.I, Ibeanu I.G.E. and Akpa T.C. (2009).@Evaluation of lead concentration levels of children’s playground in Kaduna state schools.@Bayero Journ. of Pure and Appl. Sc., 2(2), 105–109.@Yes$Davies O.A., Allison M.E. and Uyi H.S. (2006).@Bioaccumulation of heavy metals in water, sediment and periwinkle (Tympanotonus fuscatus var radula) from the Elechi Creek, Niger Delta.@African Journal of Biotechnology, 5(10), 968-973.@Yes$Corbett J.V. (1995).@Accidental poisoning with iron supplements.@American Journal of Maternal and Child Nursing, 20-23.@Yes$Chang J.S., Yu K.C., Tsai L.J. and Ho S.T. (1998).@Spatial distribution of heavy metals in bottom sediment of Yenshui river, Taiwan.@Water Science and Technology 38 (11), 159–167.@Yes$Yap C.K., Ismail A., Tan S.G. and Omar H. (2002).@Correlations between speciation of Cd, Cu, Pb and Zn in sediment and their concentrations in total soft tissue of green-lipped mussel Perna viridis from the west coast of Peninsular Malaysia.@Environment International, 28, 117–126.@Yes$Shaofeng W. Wang, Youngfeng Jia, Shuyying Wang, XinWang, He Wang, Zhixi Zhao and Biingzhu Liu (2010).@Fractionation of heavy metals in shallow marine sediments from Jinzhou Bay, China.@Journal of Environmental sciences, 22(1), 23-31.@No$Annao W.L., Nurdans D.A.K., Cheung C.C. and Mingh W. (2008).@Heavy Metals Concentrations of Surface Dust from E-Waste Recycling and Its Human Health Implications in Southeast China.@Environmental science and technology, 42(7), 2671-2680.@Yes
<#LINE#>Synthesis, Characterization and Antimicrobial activity of Cobalt (II) Complexes with Pyrimidine derivatives<#LINE#>Raja @Ram,Verma @K.K.,Solanki@K. ,Bhojak @N. <#LINE#>48-55<#LINE#>8.ISCA-RJCS-2016-025.pdf<#LINE#>GCRC, P.G. Department of Chemistry, Govt. Dungar College, Bikaner, Rajasthan MGS University, Bikaner, 334001, India@GCRC, P.G. Department of Chemistry, Govt. Dungar College, Bikaner, Rajasthan MGS University, Bikaner, 334001, India@Govt. Engineering College Bikaner, Rajasthan, India@GCRC, P.G. Department of Chemistry, Govt. Dungar College, Bikaner, Rajasthan MGS University, Bikaner, 334001, India<#LINE#>24/2/2016<#LINE#>17/3/2016<#LINE#>In this paper synthesis, spectral and antibacterial studies of Cobalt (II) complexes with pyrimidine derivates have been reported. Elemental analysis, infrared, electronic spectra and magnetic susceptibility studies have been used for characterisation. Antimicrobial activities of these pyrimidine derivates and its complexes have also been described. These complexes show UV bands in region about 11376 cm-1 to 26315 cm-1 and tentative assignment 4T1g(F)&#8594;4T2g(F), 4T1g(F)&#8594;4A2g(F), 4T1g(F)&#8594;4T1g(P) transitions. Co (II) complexes have been concluded octahedral environment with magnetic moment 3.87 BM. The microwave method of synthesis of complexes have been found easier, convenient and ecofriendly.<#LINE#>Pecoraro V.L., Baker M.J., Butler W.M. and Bonadies J.A., (1987).@Manganese Complexes of Relevance to Enzymes Containing Multinuclear Manganese Centers@Recueil Trav. Chim., 106, 221.@Yes$Garg B.S, Bhojak N., Sharma R.K., Bist J.S. and Mittal S. (1999).@Separation and preconcentration of metal ions and their estimation in vitamin, steel and milk sample using o-vanillin-immobilized silica gel.@Talanta, 48(1), 49-55.@Yes$Bhojak N., Gudasaria D.D., Khiwani N. and Jain R. (2007).@Microwave Assisted Synthesis Spectral and Antibacterial Investigations on Complexes of Mn (II) With Amide Containing Ligands.@E-Journal of Chemistry, 4(2), 232-237.@Yes$Garg B.S., Bhojak N. and Nandan D. (2005).@Micellar spectrofluorimetric determination of lead (II) in natural water, waste water and egg samples with N-(2&#697;-pyridyl)- 2- hydroxybenzamide.@Ind. J. Chem., 44A, 1504.@Yes$Raja Ram, Verma K.K., Solanki K.and Bhojak N. (2015).@Microwave assisted synthesis, spectral and antibacterial investigations on complexes of Co (II) with amide containing ligands.@International Journal of New Technologies in Science and Engineering. 2(6), 92-100.@Yes$Verma K.K., Soni Gupta P., Solanki K.and Bhojak N. (2015).@Microwave Assisted Synthesis, Characterisation and Anti microbial activities of few Cobalt (II) Thiosemicarbazones Complexes.@World Journal of pharmacy and pharmaceutical sciences., 4(11), 1673-1683.@No$Raja Ram, Verma K.K., Bhandari H.S. and Bhojak N. (2015).@Microwave assisted synthesis, spectral and antibacterial investigations on complexes of Ni (II) with amide group containing ligands.@IARJSET, 2(11), 40-43.@Yes$Singh B. and Bhojak N. (2008).@Microwave assisted synthesis, spectral and antibacterial investigations on complexes of Mn (II) with amide containing ligands.@RJC, 1(1), 105-109,@Yes$David Pines S. and David Recknow A. (2002).@Effect of Dissolved Cobalt (II) on the ozonation of Oxalic Acid.@Environ. Sci. Technol., 36(19), 4046-4051,@Yes$Akira Kurata (1974).@Cobalt content in the shallow sea sediments.@Journal of Oceanography, 30(4), 199-202.@Yes$Sharma R.M., Panigraphi S. and Azeez P.A. (1987).@Effect of cobalt on the primary productivity of Spirulina platensis.@Bulletin of Environmental Contamination and Toxicology, 39(4), 716.@Yes$Bresson C., Esnouf S., Lamouroux C., Solari P.L. and Auwer Den X.A.S. (2006).@Investigation of biorelevant cobalt complexes in aqueous media.@New J. Chem., 30, 416–424.@Yes$Yan Y., Neville A. and Dowson D. (2007).@Tribo-corrosion properties of cobalt-based medical implant alloys in Simulated Biological Environments.@Wear, 263, 1105.@Yes$Yadav N. and Bhojak N. (2013).@Microwave assisted synthesis, spectral and antibacterial investigation on Co (II) complexes with amide ligands.@The Int. J. Eng. Sci., 2(2), 166-168,@Yes$Kabanos T.A. and Tsangaris J.M. (1984).@Deprotonated and non-deprotonated complexes of n- (2-aminophenyl) pyridine-2-carboxamide and n-(3-aminophenyl)pyridine-2- carboxamide with Co(II), Ni(II), Cu(II) and Pd (II).@J. Coord. Chem., 13(2), 89- 103.@Yes$Nonoyama M. and Yamasaki K. (1973).@Cobalt (II) and copper (II) complexes of several potentially terdentate N-substituted picolinamides.@Inorg. Chem. Acta., 7, 676-680.@Yes$Barnes D.J., Champman R.L., Stephen F.S. and Vagg R.S. (1981).@Studies on the metal amide bond. II. Metal complexes of the flexible N4 ligand N, N-bis (2-pyridinecarboxamide) 1, 2-ethane.@Inorg. Chem. Acta, 51, 155-162.@Yes$Kokunov Y.V., Gorbunova Y.E., Kovalev V.V.and Kozyukhin S.A. (2013).@Russian Journal of Inorganic Chemistry, 58 (10), 1187-1192.@undefined@Yes
<#LINE#>Oxovanadium Complex of 2-((2-aminophenyl) iminomethyl) 6-methoxy phenol, Preparation, Characteriziation and Catalytic activity in the oxidation of Benzoin<#LINE#>Bushra K. @Al-Salami, Jahad@Samah A., Asker@Kahtan A. <#LINE#>56-65<#LINE#>9.ISCA-RJCS-2016-028.pdf<#LINE#>University of Basra, Collage of Science, Department of Chemistry, Basra, Iraq@University of Basra, Collage of Science, Department of Chemistry, Basra, Iraq@University of Basra, Collage of Science, Department of Chemistry, Basra, Iraq<#LINE#>29/2/2016<#LINE#>13/3/2016<#LINE#>The oxovandium complex derived from Schiff base ligand namely [2-(2-aminophenyl) iminomethyl) 6-metzoxyphenol] result from condensation of 1, 2-phenylenedaimne and    o-vanilin was synthesized and characterized by elemental analysis, IR, 1HNMR and EI-mass. The ligand acts as tridentate towards vanadylion via the azomethine nitrogen, phenolic oxygen and the lone pair of nitrogen atom of NH2. The thermogravemtric (TG) analysis confirm high stability of the complex. Their catalytic activity properties in H2O2 promoted oxidation of the benzoin to benzil was investigated.<#LINE#>Pati (1970).@The chemistry of Carbon-Nitrogen duble bond John Wiley and Sons Ltd.@undefined@No$Boghaei D.M and Lashanizadegan M. (2000).@Template synthesis, characterization of highly unsymmetrical tetradentate  Schiff base complex of Nikel (II) and copper (II)@J. Sci. I. R. Iran, 11(1), 301-308@No$Munde A.S., Shelke V.A., Jadhav S.M. Kirdant. A.S., Vaidya S.R., Shankarwar S.G and Chondhekar T.K. (2012).@Synrhesis, Characterization and Antimicrobial Activities of some Transition matelcomplex of Biologically Active Asymmetrical Tetradentate Ligand@Advance in Applied Science Research, 3(1), 175-182.@No$Munde A.S, Jagdar A.N., Jadhav S.M. and Chondhekar T.K. (2009).@Synthesis and Characterization of Some Transition Metal Complex of Unsummetrical Tetradentate Schiff Base Ligand@Journal of Korean Chemical Society, 53(4), 407 – 414.@Yes$Jeena Pearl A. and T.F Abbs Fen Reji. (2013).@Synthesis, Characterization, antimicrobial and DNA Cleavage Studies on some metal complexes incorporating 4-chlorobenzaldehyde and 4- aminoantipyrine@Journal of chemical and Pharmaceutical Research , 5(1), 115-122@No$Shelk V.A., Jadhav S.M., Shankarwar S.G. and Chondhekar T.K. (2013).@Synthesis, Spectroscopic Characterization and Antimicrobial Activities of some Rare Earth Metal Complexes of Biologically Active Asymmetrical Tetradentste ligand@J. of Chem. Sci. and Technology, 2(2). 61 – 69.@No$Thaseen A., Alsalam Jabbar S, Hadi Omar, N. Ali, Hanan S. Abbo and Salam J.J. titnchi (2010).@Oxidation of benzoin catalyzed by oxovanadium (IV) Shiff base complexes, 7(3), 1-8.@undefined@Yes$Ebitani K., Ji H-B, Mizugaki T. and Kaneda K. (2004).@Highly active trimetallic Ru/ CeO2/CoO(OH) catalyst for oxidation of alcohols in the presence of molecular oxygen.@J. mol. Catal. A: chem., 212, 161-170.@Yes$Makwana V.D., Son Y.C. Howell A.R. and Sub S.L. (2002)@The role of lattic oxygen in selective benzyl alcohol Oxidationusing OM5-2 catalyst: A Kinetic and isotope-labeling study.@J. catal., 210, 46-52.@Yes$Kobayashi S, Miyamura H, Akiyama R. and Ishid T. (2005).@Highly active, immobilized ruthenium catalysts for oxidation of alcohols to aldehydes and Ketones, Preparation and use in both batch and flow systems.@J. Am. chem. Soc., 127, 9251-9254.@No$Bushra K. Al-Salami, Amel H. Mohammad and Kahtan A. Askar (2014).@Synthesis and characterization of new Schiff Bases Derived From 2-hydroxybenzaldehyde and Amino Acid and their Vanadylcomplxes.@Research Journal of Pharmaceutical, Biological and Chemical Sciences, 5(4), 1457-1472.@Yes$Har Lal Singh J and Bhadur Singh. (2012).@Synthesis, spectral 3D molecular modeling and antibacterial studies of dibutyltin (IV) Schiff base complexes derived from substituted isatin and amino acids@Natural Science, 4(3), 170-178.@No$Suman Malik, Saparna Ghosh and Bhari Jain. (2010).@Synthesis charaeterization and antimicrobial studies of Zn(II) complexes of chemotherapeutic importance.@Archives of Applied Science Research, 2(2), 304-308.@No$Bushra K. Alsalami, Rehab G. Abood, Handi M. Jarallah and Zuhair A. Abdulnabi (2015).@Synthesis, spectral and thermal properties of complexes derived from 2-(2-hydroxyphenylimino) methyl-6-methoxyphenol.@Journal of chemical and pharmaceutical Research, 7(2), 917-923.@Yes$Chaisab K., Bhkahk and Jabbar S. Hadi. (2015).@New unsymmetrical Schiff base as Inhibitor of carbon steel corrosion and Antibacterial Activity.@Research Journal of chemical Sciences, 5(1), 64-70.@Yes$Skobridis K, Theodorou V and Weber E. (2006).@A very simple and chemoselective air oxidation of benzoins to benzils using alumina.@Arkivoc, 10, 102-106.@Yes
@Short Communication
<#LINE#>Quantum-chemical Modeling of the Stacking mechanism for the 1H-4H Proton transfer in Pyridine derivatives. A DFT study<#LINE#>Kereselidze @J.,Mikuchadze @G.,Kvaraia @M. <#LINE#>66-68<#LINE#>10.ISCA-RJCS-2015-156.pdf<#LINE#>Department of Chemistry, Ivane Javachishvili Tbilisi State University, 0179, Georgia@Department of Chemistry, Ivane Javachishvili Tbilisi State University, 0179, Georgia@Department of Chemistry, Suchumi State University, 0186, Georgia<#LINE#>4/11/2015<#LINE#>8/2/2016<#LINE#>The stacking mechanism of the 1H-4H proton transfer in 4-pyridone, 4-pyridinthione and p-amino-pyridine are constructed. For quantitative description of this process by means of the quamtum-chemical method density functional theory (DFT) the activation energy (&#916;E#), reaction energy (&#916;E) and tautomeric equilibrium constant (KT) has been calculated. The results of calculations have shown, that the values of the energetical and kinetical characteristics, from the point of view of chemical reactions, in reasonable limits varies, that allows one to make the conclusion in favour of competence of the offered stacking mechanism for the 1H-4H proton transfer in pyridine derivatives. It is a new one-stage synchronous and unique mechanism for the 1H-4H proton transfer.<#LINE#>Kereselidze J., Zarqua T., Kikalishvili T., Churgulia E. and Makaridze M. (2002).@Some new views on the tautomerization mechanism.@Russ. Chem. Rev., 71, 993-1003.@Yes$Schlegel H., Gund P. and Fluder E. (1982).@Tautomerization of formamid, 2-pyridone, and 4-pyridone: an ab initio study.@J Am Chem Soc, 104(20), 5347-5351.@Yes$Kereselidze J. and Zarqua T. (2000).@Features of the tautomerism of some &#945; – substituted pyridine.@Chem Heter Comp, 36(10), 1161-1163.@Yes$Churgulia E. and Kereselidze J. (2005).@Dimer mechanism for the tautomeric conversion of 4-amino-2-oxopirimidine.@Chem Heter Comp, 41(4), 481-484.@Yes$Alkorta I. and Elguero J. (2002).@Influence of intermolecular hydrogen bond on the Tautomerism of Pyridine Derivatives.@J Org Chem, 67(5), 1515-1519.@Yes$Kereselidze J., Pachulia Z. and Zarqua T. (2009).@Quantum-chemical description of the protopropic tautomerism of pyrimidine bases.@Chem Heter Comp, 45(6), 680.@Yes$Teterin Yu and Nikolenko L. (1973).@A study of imidazole by the proton magnetic resonance method.@Chemistry of Heterocyclic Compounds, 6 (6), 750-753.@Yes$Kereselidze J., Pachulia Z. and Zarqua T. (2006).@Correlation of the physic-chemical parameters.@Chem Heter Comp, 42, 918.@No$Kohn W. and Sham L. (1965).@Density-functional exchange-energy approximation.@Phys Rev A. 140, 1133.@No$Perdew J., Burke K. and Ernzerhof M. (1996).@Generalized Gradient Approximation Made Simple.@Phys Rev Lett., 77(18), 3865.@Yes$Adamo C. and Barone V. (2002).@Physically motivated Density functional with improved performances: The modified Perdew–Burke–Ernzerhof model.@J. Chem. Phys., 116, 5933.@Yes$Becke A. (1988).@Density: functional exchange-energy approximation with correct asymptotic behavior.@Phys Rev A, 38(6), 3098.@Yes$Lee C., Yang W. and Parr R. (1988).@Development of the Coole-Salveti correlation- energy formula into a functional of the electron density.@Phys. Rev. B 37(2), 785-789.@Yes$Laikov D, Ustynyuk Yu and Priroda A. (2005).@Quantum-Chemical program suite. New Possibilities in the study molecular system with the application of paraller computing.@Russ. Chem. Bull., 54(3), 820-826.@Yes