Journal
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
Volume -, Issue 33, Pages 3757-3760Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/ejic.201800671
Keywords
Viologen; Photochromism; Modulator; Polyoxometalates; Hybrids
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Funding
- National Natural Science Foundation of China (NSF of China) [21571032, 21271038]
- China High-Tech Development 863 Program [2007AA03Z218]
- analysis and testing foundation of Northeast Normal University
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N,N-disubstituted-4,4-bipyridinium (viologen) compounds and polyoxometalates (POMs) are two large groups of photochromic materials. In this work, we studied the photochromic property and colour modulation property of hydrogen bonding POMs-viologen hybrids. Taking the reported (H(2)pipz)(3)[Mo8O27] (1: no viologen containing) and (C14H11N4O)(2)[Mo8O26] (2) as important examples and combining with the two reported POM-viologen crystalline hybrids, we have demonstrated that C14H11N4OCl2 viologen ligands do participate in the coloration process. Moreover, it can also tune the photochromic property of polyoxomolybdates, displaying a colour modulation effect. This work develops a new colour modulation method based on Polyoxomolybdate-Viologen hybrid photochromic materials and may help to improve the performance of the well-known photochromic polyoxomolybdate family.
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