Thermodynamic studies of some complexes of 2-benzoylpyridine 4-phenyl-3-thiosemicarbazone

被引：0
|
作者：
Atalay, T [1 ]
Akgemci, EG [1 ]
机构：
[1] Selcuk Univ, Fac Educ, Dept Chem, TR-42099 Konya, Turkey
来源：
TURKISH JOURNAL OF CHEMISTRY | 1998年 / 22卷 / 02期
关键词：
stability; thiosemicarbazone; ligand; thermodynamic; spectrophotometry;
D O I：
暂无
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The stability constants of the Co(II), Ni(II), Cu(II) and Zn(II) complexes with 2-benzoylpyridine 4-phenyl-3-thiosemicarbazone were determined using a spectrophotometric method at different temperatures (25, 30, 35 and 40 +/- 0.1 degrees C) and ionic strengths (0.05, 0.01 and 0.20 M KNO3) in 50 % (v/v) aqueous ethanol. Plots of thermodynamic stability constants at zero ionic strength (ln K degrees) versus T-1 gave linear curves and Delta H degrees and Delta S degrees were also calculated from these plots. Moreover, the changes in free energy for each metal-ligand system were calculated from the following equation. Delta G degrees = -RT ln K degrees.
引用
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页码：123 / 127
页数：5
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