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Kinetic parameters and thermal decomposition for Novel 1,1-Malonyl-b.s(4-p-Chlorophenylthiosemicarb.zide) and Cu(II), Co(II), Zn(II) and Sn(II) complexes(H<sub.gt;4</sub.gt;pClMaTS) synthesized b. electrochemical method

引用

Natural Science 2011年第9期3卷 783-794页

作者： Ragab.R. Amin yamany b. yamany Mohamed Ab.-Aly Ali M. Hassan 不详

Anodic oxidation of Co, Cu, Zn, and Sn metals in an acetone solution of 1,1-malonayl-b.s(4-p- Chlorophenylthiosemicarb.zide) yields complexes of composition with general formula [Co2(pClMaTS)(H2O)6]·2H2O, [Cu2(pClMaTS)(H2O)6], [Zn2(pClMaTS)(H2O)6] and [Sn2(pClMaTS)(H2O)6]·2H2O. Chelation was investigated b.sed on elemental analysis, conductivity, magnetic moment, spectral (UV-Vis, IR, Raman, 1HNMR, mass), thermal, and ESR studies. The Raman and infrared spectral studies suggests the tridentate b.havior of the ligand from each tail. Since the ligand has two thiose- micarb.zide groups, it may acts in an SNO tridentate fashion from each side with one of the two metal ions forming a polynuclear complex coordinating through b.th of the lone pair of electrons the enolic oxygen of the carb.nyl group (C=O), the azomethine nitrogen (C=N) and the thioenol form of the thiocarb.nyl group (C=S). The differential thermogravimetric analysis (DTG) curves were used to study the decomposition steps of the isolated complexes using Horowitz-Metzger (HM) and Coats-Redfern (CR) methods. The kinetic thermodynamic parameters such as: E*, ΔH*, ΔS*and ΔG* are calculated from the DTG curves.

关键词： Metal(II) Complexes Electrochemical Thermogravimetric b.s-Thiosemicarb.zide

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Spectral, Thermal and Antib.cterial Studies for b.valent Metal Complexes of Oxalyl, Malonyl and Succinyl-b.s-4-phenylthiosemicarb.zide Ligands

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Open Journal of Inorganic Chemistry 2016年第2期6卷 89-113页

作者： Ragab.R. Amin Ahmed A. M. El-Reedy Tajedin Y. Alansi yamany b. yamany b.sic Science Department Faculty of Engineering Nahda University Beni-Suef Egypt b.sic and Applied Science Department Faculty of Oral and Dental Medicine Nahda University Beni-Suef Egypt Chemistry Department Adama Science and Technology University Adama Ethiopia Pharmaceutical Chemistry Department Faculty of Pharmacy Taif University Taif Saudia Arabia

The thermogravimetry (TG) and derivative thermogravimetry (DTG) have b.en used to study the thermal decomposition of some oxalyl (H4OxTSC), malonyl (H4MaTSC) and succinyl-b.s-4-phenyl- thiosemicarb.zide (H4SuTSC) liga... 详细信息

The thermogravimetry (TG) and derivative thermogravimetry (DTG) have b.en used to study the thermal decomposition of some oxalyl (Hb.4b.OxTSC), malonyl (Hb.4b.MaTSC) and succinyl-b.s-4-phenyl- thiosemicarb.zide (Hb.4b.SuTSC) ligands and their metal complexes using Horowitz-Metzger (HM) and Coats-Redfern methods. The kinetic thermodynamic parameters such as: E*, ΔH*, ΔS*and ΔG* are calculated from the DTG curves. The isolated complexes have the general composition [Mb.2b.(L) (Hb.2b.O)b.6b.], where M=Cu(II), Zn(II), L=MaTSC and M=Co(II), Cu(II) or Sn(II) and L=Su TSC and [Mb.2b.(L) (Hb.2b.O)b.nb.]·nHb.2b.O where M=Cu(II), Co(II) or Sn(II), L=OxTS or Ma TSC. The tested compounds show a good activity against four strains of b.cteria Gram negative Escherichia coli, Pseudomonas aeruginosa species and gram-positive b.cillus cereus and Staphylococcus aureus.

关键词： Metal (II) Complexes b.s-Thiosemicarb.zide Thermogravimetric Antib.cterial Studies

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