Photochromic properties of a spirooxazine and a spiropyran in alcoholic solutions of zirconium and aluminium alkoxides: Influence of the ethyl acetoacetate chelating agent on the optical properties

被引：26

作者：

Lafuma, A

Chodorowski-Kimmes, S

Quinn, FX

Sanchez, C

机构：

[1] Univ Paris 06, F-75252 Paris 05, France

[2] LOreal, Rech Avancee, F-93601 Aulnay Sous Bois, France

来源：

EUROPEAN JOURNAL OF INORGANIC CHEMISTRY | 2003年 / 02期

关键词：

alkoxides; sol-gel processes; spiro compounds; photochromism; aluminium; zirconium;

D O I：

10.1002/ejic.200390045

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The photochromism of two spiro compounds, a spiropyran and a spirooxazine, dissolved in alcoholic solutions of metal alkoxides M(OR)(n) (M = Zr, Al) has been studied. In the case of the aluminium alkoxide Al(OsBu)(3), special photochromic behaviour is observed characteristic of complexation between the coloured form of the dyes and the aluminium, This chemical interaction induces a considerable shift in the absorption spectra and a significant retardation rate in the dark. Addition of ethyl acetoacetate, a bidentate chelate of aluminium, leads to the disappearance of this particular photochromic behaviour. (C) Wiley-VCH Verlag GmbH & Co KGaA, 69451 Weinheim, Germany, 2003.

引用

页码：331 / 338

页数：8

共 41 条

[1] KINETICS OF LIGAND EXCHANGE BETWEEN ZIRCONIUM HAFNIUM AND THORIUM CHELATES AND FREE BETA-DIKETONES MEASURED BY NUCLEAR MAGNETIC RESONANCE [J].