Equilibrium studies of the axial addition of chiral bases to chiral metal Schiff base complexes

被引：0
|
作者：
Schuhmann, K [1 ]
Jäger, EG [1 ]
机构：
[1] Univ Jena, Inst Anorgan & Analyt Chem, D-07743 Jena, Germany
来源：
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY | 1998年 / 12期
关键词：
Schiff bases; chiral recognition; equilibrium constants; nickel; cobalt;
D O I：
暂无
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
The syntheses of new chiral 1,2- diphenylethylene-bridged nickel(II) and methylcobalt(III) Schiff base complexes are described. The equilibrium constants for the axial addition of the chiral bases (R)- and (S)-1-phenylethylamine to the enantiomerically pure metal complexes have been determined by means of spectrophotometric titrations. Comparison of the constants for the cyclohexanediyl-bridged complexes (type 1) with those for the more bulky 1,2-diphenylethylene-bridged complexes (type 2) reveals that chiral recognition is only observed in the case of type-2 complexes.
引用
收藏
页码：2051 / 2054
页数：4
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