Anion鈭捪€ Interaction-Directed Assembly of Polyoxometalate-Based Host鈥揋uest Compounds and Its Contribution to Photochromism
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- 作者：Jian-Zhen Liao ; Xiao-Yuan Wu ; Jian-Ping Yong ; Hai-Long Zhang ; Wen-Bing Yang ; Rongmin Yu ; Can-Zhong Lu
- 刊名：Crystal Growth & Design
- 出版年：2015
- 出版时间：October 7, 2015
- 年：2015
- 卷：15
- 期：10
- 页码：4952-4958
- 全文大小：482K
- ISSN：1528-7505
文摘
Two rare copper-based host鈥揼uest crystalline compounds were synthesized with different photoresponsive reversible visible light photochromism as a result of blending of distinctively different functional components, naphthalenediimides (NDIs) tectons and polyoxometalates. A slight adjustment of the substituent of the diimide nitrogens, from rigid to semirigid ligands, will result in different modes of anion鈭捪€ interactions, which eventually lead to different structures and different sensitivities to visible light. The unique anion鈭捪€ interactions impart significant impacts on the structures of the compounds and, to some extent, the ability to gain or lose electrons of the NDIs of the compounds, which is evident from subtle changes in photochromic sensitivity and reduction potentials; if compounds bear more and stronger anion鈭捪€ interactions, this might dramatically enhance the compounds鈥?stability and diminish the 蟺-electron-deficient property of the core naphthalene ring of the NDIs.