KINETICS AND MECHANISM OF THE LINKAGE ISOMERISM IN THE NICKEL(II)-2,3-DIHYDROXYBENZOATE SYSTEM

被引：8

作者：

CUN, L ^{[1
]}

JORDAN, RB ^{[1
]}

机构：

[1] UNIV ALBERTA,DEPT CHEM,EDMONTON T6G 2G2,ALBERTA,CANADA

来源：

INORGANIC CHEMISTRY | 1990年 / 29卷 / 16期

关键词：

D O I：

10.1021/ic00341a016

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The complexation of nickel(II) by 2, 3-dihydroxybenzoate has been studied by stopped-flow spectrophotometry at 25 °C in PIPES buffer between pH 6.5 and 7.0. The apparent pseudo-first-order rate constant appears to decrease with increasing nickel(II) concentration and changes with the observation wavelength between 290 and 350 nm. It is shown that the reaction is biphasic and the kinetic behavior is interpreted in terms of the formation and interconversion of two linkage isomers in which nickel(II) is complexed, as in salicylate or as in catechol. © 1990, American Chemical Society. All rights reserved.

引用

页码：2937 / 2940

页数：4

共 9 条

[1] COORDINATION CHEMISTRY OF MICROBIAL IRON TRANSPORT COMPOUNDS .9. STABILITY-CONSTANTS FOR CATECHOL MODELS OF ENTEROBACTIN [J].