A kinetic study of the hydrolysis of crystal violet and some terminal and bridged analogues

被引：8

作者：

Beach, SF ^{[1
]}

Hepworth, JD

Mason, D

Swarbrick, EA

机构：

[1] Univ Cent Lancashire, Dept Chem, Preston PR1 2HE, Lancs, England

[2] Univ Hull, Dept Chem, Hull HU6 7RX, N Humberside, England

来源：

DYES AND PIGMENTS | 1999年 / 42卷 / 01期

关键词：

triphenylmethane dyes; xanthene dyes; hydrolysis; thermodynamic parameters;

D O I：

10.1016/S0143-7208(99)00010-8

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Rate constants have been measured for the reaction of hydroxide ions with Crystal Violet, Ethyl Violet, Pyrrolidine Violet and the 2,2'-isopropyl and oxygen bridged analogues of Crystal Violet. The rates of hydrolysis of Ethyl and Pyrrolidine Violets are similar to each other but are slower than Crystal Violet in accord with the electron releasing nature of the terminal groups. Bridging groups also stabilise the dye system. Thermodynamic parameters Delta H double dagger and Delta S double dagger have been obtained for each dye. (C) 1999 Elsevier Science Ltd. All rights reserved.

引用

页码：71 / 77

页数：7

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