Synthesis and characterization of two new photochromic inorganic-organic hybrid materials based on Keggin-type polyoxometalates

被引：2

作者：

Ku Zongjun ^{[1
]}

Jin Surong ^{[2
]}

机构：

[1] Xiaogan Univ, Coll Chem & Mat Sci, Xiaogan 432000, Peoples R China

[2] Wuhan Univ Technol, Coll Sci, Wuhan 430070, Peoples R China

来源：

JOURNAL OF WUHAN UNIVERSITY OF TECHNOLOGY-MATERIALS SCIENCE EDITION | 2008年 / 23卷 / 03期

关键词：

polyoxometalate; metronidazole; hybrid material; photochromism; kinetics;

D O I：

10.1007/s11595-007-3367-4

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Two new photochromic inorganic-organic hybrid materials formed from Keggin-type-polyoxometalates(POMs) and metronidazole (C6H9N3O3, MNZ), formulated as H3PMo12O40 center dot 3MNZ center dot 3H(2)O (1) and H3PW12O40 center dot 3MNZ center dot 3H(2)O(2), were synthesized and characterized by elemental analysis, IR spectra, electronic spectra, electron spin resonance (ESR) spectra and thermogravi-metry-differential thermal analysis (TG-DTA). Reflectance spectra show the presence of weak intermolecular charge transfer between the organic and inorganic moieties in the solid state. The photochromic properties were studied by solid diffuse reflectance spectra and ESR spectra, and the photochromic reactions were found to exhibit first-order kinetics. TG-DTA showed that two hybrid materials have similar thermal behavior.

引用

页码：367 / 371

页数：5

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