Solvent mediated reversible solid state photochromism of {Mo72Fe30} Keplerate

Tandekar Kesar; Mishra Neeraj Kumar; Supriya Sabbani

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Solvent mediated reversible solid state photochromism of {Mo72Fe30} Keplerate

机译：溶剂介导的可逆固态{Mo72Fe30}的光学变色

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When the yellow rhombohedral crystals of Keplerate [Mo72Fe30O252(CH3COO)(12){Mo2O7(H2O)}(2){H2Mo2O8(H2O)}(H2O)(91)]center dot 150H(2)O (1), on wetting with N,N-dimethylformamide (DMF), are irradiated with sunlight, a remarkable reversible solid state photochromic behaviour is achieved with the formation of green coloured crystals (1(red)). The reduction of the {Mo-VI} centres to {Mo-V} is responsible for the observed colour change from yellow to dark green. Importantly, compound 1 can be activated towards photochromism only in the presence of the DMF solvent. The photochromic phenomenon displayed by Keplerate compound 1 is a classic example of sunlight activated solvent driven photoactivity.

机译：当开普勒酸盐[Mo72Fe30O252（CH3COO）（12）{Mo2O7（H2O）}（2）{H2Mo2O8（H2O）}（H2O）（91）]中心点150H（2）O（1）的黄色菱形晶体在与N，N-二甲基甲酰胺（DMF）润湿时，在阳光照射下，通过形成绿色晶体（1（红色））实现显著的可逆固态光致变色行为。将{Mo-VI}中心还原为{Mo-V}是观察到的颜色从黄色变为深绿色的原因。重要的是，只有在DMF溶剂存在下，化合物1才能被激活以实现光致变色。开普勒化合物1显示的光致变色现象是阳光激活溶剂驱动光活性的经典例子。

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《Dalton transactions: An international journal of inorganic chemistry》 |2021年第18期|共6页
作者
Tandekar Kesar; Mishra Neeraj Kumar; Supriya Sabbani;
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Jawaharlal Nehru Univ Sch Phys Sci New Delhi 110067 India;

Jawaharlal Nehru Univ Sch Phys Sci New Delhi 110067 India;

Jawaharlal Nehru Univ Sch Phys Sci New Delhi 110067 India;

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正文语种 eng
中图分类化学;无机化学;
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Solvent mediated reversible solid state photochromism of {Mo72Fe30} Keplerate

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