STABILITIES OF 1,2-DIMETHYL-3-HYDROXY-4-PYRIDINONE CHELATES OF DIVALENT AND TRIVALENT METAL-IONS

被引：103

作者：

CLARKE, ET ^{[1
]}

MARTELL, AE ^{[1
]}

机构：

[1] TEXAS A&M UNIV SYST,DEPT CHEM,COLLEGE STN,TX 77843

来源：

INORGANICA CHIMICA ACTA | 1992年 / 191卷 / 01期

关键词：

D O I：

10.1016/S0020-1693(00)80327-8

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The stepwise stability constants of the 1:1, 2:1 and 3:1 complexes of bidentate 1,2-dimethyl-3-hydroxy-4-pyridinone (DMHP) with divalent and trivalent metal ions have been determined in KCl supporting electrolyte (0.100 M) at 25.0-degrees-C. The overall log stability constant (log beta(ML3) = [ML3]/[M3+][L-]3) for the Fe(III) and Ga(III) complexes are high, 35.88 and 35.76, respectively. The log beta(ML3) values for the Al(III) and In(III) complexes with DMHP are 32.62 and 31.71, respectively, while that for the weak complex with Gd(III) is 17.33. The divalent metal ions of Cu(II), Ni(II), Co(II) and Zn(II) form stable 1:1 and 2:1 complexes with DMHP.

引用

页码：57 / 63

页数：7