Allosteric-controlled metal specificity of a ditopic ligand

被引：27

作者：

Baylies, CJ

Riis-Johannessen, T

Harding, LP

Jeffery, JC

Moon, R

Rice, CR ^{[1
]}

Whitehead, M

机构：

[1] Univ Huddersfield, Dept Chem & Biol Sci, Huddersfield HD1 3DH, W Yorkshire, England

[2] Univ Bristol, Sch Chem, Bristol BS8 1TS, Avon, England

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2005年 / 44卷 / 42期

关键词：

allosterism; copper; helicates; metal specificity; zinc;

D O I：

10.1002/anie.200502571

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

(Chemical Equation Presented) To twist or not to twist? A ditopic ligand, L1, that contains a potentially tetradentate pyridyl-thiazole ligand chain and a "external" crown ether unit is presented. Reaction of L1 with Cu+ or Zn2+ ions results in the formation of a dinuclear double helicate [Cu2(L1) 2]2+ or a mononuclear [ZnL1]2+ species. This ditopic system changes its preference for Cu+ or Zn2+ ions on the inclusion of s-block-metal ions at the crown ether binding site (e.g., Sr2+ ions as shown in the scheme). © 2005 Wiley-VCH Verlag GmbH & Co. KGaA.

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收藏

页码：6909 / 6912

页数：4

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