Thermally stable water insoluble azo-azomethine dyes: Synthesis, characterization and solvatochromic properties

被引：22

作者：

Khanmohammadi, Hamid ^{[1
]}

Rezaeian, Khatereh ^{[1
]}

机构：

[1] Arak Univ, Dept Chem, Fac Sci, Arak 3815688349, Iran

来源：

SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY | 2012年 / 97卷

关键词：

Azo-azomethine; Dye; Solvatochromism; Substitution effect; Thermal properties; Substituent effects; HYDRAZONE TAUTOMERISM; COMPLEXES; LIGANDS; CRYSTAL; LIQUID; IMINE; CHAIN;

D O I：

10.1016/j.saa.2012.07.013

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

Six new water insoluble azo-azomethine dyes have been synthesized via condensation reaction of alpha,alpha'-bis(o-aminophenylthio)-1,2-xylene with substituted azo-coupled salicylaldehyde. The condensation reaction provides the expected bis-iminated azo-azomethine dyes in good yields, ranging from 59% to 90%. The dyes have been characterized by IR. UV-Vis and H-1 NMR spectroscopic methods as well as elemental analysis. The thermal behavior of the prepared dyes has been determined using thermogravimetry technique. Furthermore, the effect of various organic solvents with different polarities on the UV-Vis spectra of the dyes has been also studied. (C) 2012 Elsevier B.V. All rights reserved.

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页码：652 / 658

页数：7

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