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New Copper（Ⅱ） and Nickel（Ⅱ） Complexes of 4-Morpholinoacetophenone Thiosemicarbazone： Structural, Electrochemical and Antimicrobial Studies

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Chinese Journal of Chemistry 2007年第3期25卷 307-311页

作者： bingol haluk COSKUN Ahmet AKGEMCI Emine Guler KAYA Basturk ATALAY Tevfik Selcuk University Faculty of Education Chemistry Department Konya 42099 Turkey Selcuk University Faculty of Education Biology Department Konya 42099 Turkey

4-Morpholinoacetophenone thiosemicarbazone, MAPT, and its nickel（Ⅱ） and copper（Ⅱ） complexes have been prepared and characterized by elemental analysis, magnetic susceptibility, spectral methods （FT-IR, ^1H NMR） and cyclic voltammetry. Electrochemical behaviors of the complexes have been studied by cyclic voltammetry in DMF media showing metal centered reduction processes for both of them. The redox properties, nature of the electrode processes and the stability of the complexes were discussed. [Cu（MAPT）2]Cl2 complex shows Cu（Ⅱ）/Cu（Ⅰ） couple and quasi-reversible wave associated with the Cu（Ⅲ）/Cu（Ⅱ） process. The reduction/oxidation potential values depend on the structures of complexes. Also, the antimicrobial activities of these complexes were determined against S. aureus, E. coli and B. subtilis.

关键词： thiosemicarbazone metal complexes spectra cyclic voltammetry antimicrobial activity

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Study of Kinetics of Complexation Reaction of Co^(2+) with 2-benzoylpyridine-4-phenyl-3-thiosemicarbazone and Kineticspectrophotometric Determination of Cobalt

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物理化学学报 2006年第12期22卷 1484-1488页

作者： bingol.haluk ATALAY.Tevfik Faculty of Education Department of Chemistry Selcuk UniversityKonya 42090TurkeyFaculty of EducationDepartment of ChemistrySelcuk UniversityKonya 42090Turkey

Kinetics of complexation reaction of Co2+ with 2-benzoylpyridine-4-phenyl-3-thiosemicarbazone(BPPT) was spectrophotometrically examined at 421 *** ligand that is developed for a simple kinetic-spectrophotometric determination of Co2+ is based on 1:2 complex formation between Co2+ and *** complexation reaction was carried out in ethanol-water medium at 25 ℃.Kinetic and activation parameters of the complexation reaction were calculated,and the rate equation and the reaction mechanism were *** calibration graph is linear in the concentration range of 0.10～2.91 mg·L-1 for the tangent *** species that caused interference were investigated.

关键词：钴动力学研究缩氨基硫脲分光谱测量

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Investigation of the Lipophilicity of 2-Benzoylpyridine-Thiosemicarbazone Based on the Ion Transfer across the Liquid/Liquid Interface

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物理化学学报 2008年第4期24卷 619-624页

作者： AKGEMCI Emine G bingol haluk OZCELIK Mehmet ERSOZ Mustafa Department of Chemistry Selcuk University Meram/Konya 42099 Turkey

The ion transfer reaction of 2-benzoylpyridine-thiosemicarbazone (HL), which has antimicrobial and antifungal properties and anticancer activity, has been studied to determine its lipophilicity by cyclic voltammetry at the water/1,2-dichloroethane (1,2-DCE) interface. The physicochemical parameters such as standard partition coefficient (lgPI)andthestandardGibbsenergyoftransfer("G0tr,,wI "o)oftheprotonatedformoftheligandwere measured asa function of pH in aqueous phase. The protonated form of the ligand exhibited reversible or quasi-reversible voltammograms at the1,***,pKa1andpKa2,weredeterminedspectrophotometrically and were found to be 12.14 and 3.24, respectively. The standard Gibbs energy of transfer ("G0tr,,wN" o) and the partition coefficient of neutral species (lgPN) were also determined by the shake-flask method. The standard Gibbs energy of transfer of this compound across the water/1,2-DCE interface was evaluated as the quantitative measure of its lipophilicity. The difference between lgPI and lgPN was related to the degree of charge delocalization and was used to evaluate qualitatively the lipophilicity of the ligand.

关键词：缩氨基硫脲化学结构离子抗菌剂

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噻二嗪衍生物的合成及Pb^(2+)在水/1,2-二氯乙烷界面转移的电化学性质(英文)

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物理化学学报 2011年第8期27卷 1859-1862页

作者： BASLAK Canan bingol haluk COSKUN Ahmet ATALAY Tevfik Department of Chemistry Selcuk University

The transfer of Pb2+ facilitated by interfacial complexation with 5-(4-phenoxyphenyl)-6H-1,3,4-thiadiazin-2-amine(PPTA) at the polarized water/1,2-dicholoroethane(1,2-DCE) interface was investigated by cyclic *** synthesized the thiadiazine derivative,PPTA,*** transfer was performed at different metal concentrations and scan rates,and the obtained voltammetric transfer peaks toward Pb2+ ion over other divalent cations(Zn2+,Co2+,Ni2+,Cd2+,Hg2+,and Cu2+) were *** dependence of the half-wave potentials of the Pb2+ ion on the concentration of PPTA in the organic phase indicates that the ion transfer is facilitated by the formation of 1:2(metal:ligand) complex in the organic phase with the association constant(lgβ2) of(17.1±0.2).

关键词：《物理化学学报》期刊摘要编辑部

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