Towards a unified view of the solvatochromism of phenolate betaine dyes

被引：51

作者：

Dominguez, Moises ^{[1
]}

Caroli Rezende, Marcos ^{[1
]}

机构：

[1] Univ Santiago, Fac Quim & Biol, Santiago, Chile

来源：

JOURNAL OF PHYSICAL ORGANIC CHEMISTRY | 2010年 / 23卷 / 02期

关键词：

chemical hardness; inverted solvatochromism; phenolate betaine dyes; MEROCYANINE-TYPE DYES; TYPICAL MEROCYANINE; SOLVENT POLARITY; CHARGE-TRANSFER; BEHAVIOR; REACTIVITY; RESONANCE; MOLECULE; HARDNESS; FORMS;

D O I：

10.1002/poc.1599

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

An attempt has been made in order to unify the three types of solvatoch rom isms (negative, positive and inverted) of phenolate betaine dyes by a working model which describes them as particular cases of a general behavior. The model, based on the calculation (gas phase) of the chemical hardness of donor and acceptor fragments, was applied to 56 examples from the literature. As a result, the investigated compounds were grouped according to the sum of the hardnesses of their (non-interacting) fragments, this sum being larger for a negative, intermediate for an inverted, and smaller for a positive solvatochromic behavior. Copyright (C) 2009 John Wiley & Sons, Ltd.

引用

页码：156 / 170

页数：15

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