Speciation of L-ornithine complexes of cobalt-, copper- and zinc(II) in water-dimethylformamide mixtures

被引：0
|
作者：
Babu, MS
Rao, GN
Ramana, KV
Rao, MSP [1 ]
机构：
[1] Andhra Univ, Sch Chem, Bioinorgan Chem Labs, Visakhapatnam 530003, Andhra Pradesh, India
[2] GITAM, Coll Engn, Dept Chem, Visakhapatnam 530045, Andhra Pradesh, India
来源：
JOURNAL OF THE INDIAN CHEMICAL SOCIETY | 2001年 / 78卷 / 06期
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D O I：
暂无
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Speciation of L-ornithine complexes of Co-II, Cu-II and Zn-II has been investigated in 0-60% (v/v) water-NX-dimethylformamide media pH-metrically. The predominant species formed are CoL2H22+, CuL2H22+, CuL2H44+ and ZnL2H+ in addition to ML+, ML2 and MLH2+ for all the metals. The trend of stability constants with the solvent parameters shows the complexity of equilibria. The inclusion of solvent and water molecules in equilibria gives a complete picture of the speciation studies.
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页码：280 / 283
页数：4
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