Sulfonium Polyoxometalates: A New Class of Solid-State Photochromic Hybrid Organic-Inorganic Materials

被引：67

作者：

Hakouk, Khadija ^{[1
]}

Oms, Olivier ^{[2
]}

Dolbecq, Anne ^{[2
]}

El Moll, Hani ^{[2
]}

Marrot, Jerome ^{[2
]}

Evain, Michel ^{[1
]}

Molton, Florian ^{[3
]}

Duboc, Carole ^{[3
]}

Deniard, Philippe ^{[1
]}

Jobic, Stephane ^{[1
]}

Mialane, Pierre ^{[2
]}

Dessapt, Remi ^{[1
]}

机构：

[1] Univ Nantes, CNRS, Inst Mat Jean Rouxel, F-44322 Nantes, France

[2] Univ Versailles St Quentin Yvelines, Inst Lavoisier Versailles, UMR 8180, F-78035 Versailles, France

[3] Univ Grenoble 1, CNRS, Dept Chim Mol, Inst Chim Mol Grenoble,FR CNRS 2607,UMR 5250, F-38041 Grenoble 9, France

来源：

INORGANIC CHEMISTRY | 2013年 / 52卷 / 02期

关键词：

MOLYBDATES; TRANSITION;

D O I：

10.1021/ic302477p

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

For the very first time, sulfonium polyoxometalate (POM) assemblies are shown to develop efficient solid-state photochromism in ambient conditions. The optical properties of the already known Rb-0.75(NH4)(5.25)[(Mo3O8)(2)O(O3PC(CH2S(CH3)(2))OPO3)(2)]center dot 8H(2)O (1) and a new material (Me3S)(4)[Mo8O26] (2) under UV excitation are investigated by diffuse reflectance spectroscopy, revealing that the color change effect is highly tunable playing with the nature of the POM. A mechanism involving the photoreduction of Mo6+ cations associated with electron transfers from the sulfonium cations toward the POMs is proposed.

引用

页码：555 / 557

页数：3

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