Carboxy and diphosphate ester hydrolysis promoted by dinuclear zinc(II) macrocyclic complexes. Role of Zn(II)-bound hydroxide as the nucleophilic function

被引：52

作者：

Bencini, A ^{[1
]}

Berni, E ^{[1
]}

Bianchi, A ^{[1
]}

Fedi, V ^{[1
]}

Giorgi, C ^{[1
]}

Paoletti, P ^{[1
]}

Valtancoli, B ^{[1
]}

机构：

[1] Univ Florence, Dept Chem, I-50144 Florence, Italy

来源：

INORGANIC CHEMISTRY | 1999年 / 38卷 / 26期

关键词：

D O I：

10.1021/ic990820g

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The dihydroxo complexes [Zn2L(OH)(2)](2+) (L = di-nucleating ligands containing two polyamine units separated by polyoxa chains) promote both p-nitrophenyl acetate and bis(p-nitrophenyl) phosphate hydrolysis. In NA cleavage, the hydrolytic properties depend mainly on the nucleophilicity of the Zn(II)-OH functions, while in BNP hydrolysis, the activity is modulated by the interaction of the phosphate ester with the two metal centers.

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页码：6323 / +

页数：4

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