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Issue 13, 2020
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Metal-dependent photosensitivity of three isostructural 1D CPs based on the 1,1′-bis(3-carboxylatobenzyl)-4,4′-bipyridinium moiety

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Abstract

To study the effect of metal ions on the photochromic behaviors of CPs, three new isostructural coordination polymers (CPs) based on a neutral viologen moiety, 1,1′-bis(3-carboxylatobenzyl)-4,4′-bipyridinium (bcbpy), have been obtained by choosing 1,2,4,5-benzenetetracarboxylic acid (H4BTEC) to coordinate with different metal ions, {[M(H2O)6][M(BTEC)(H2O)4]·(bcbpy)·4H2O}n (M = Co (1), Ni (2), Zn (3)), all of which exhibit metal-dependent photochromism and adjustable photosensitivity. Compounds 1 and 2 are only sensitive to UV light, while compound 3 is sensitive to sunlight, UV light and X-ray (Mo). The comparison of the photochromic behaviors of the three CPs indicates that the metal ions play an important role in regulating their photochromic properties.

Graphical abstract: Metal-dependent photosensitivity of three isostructural 1D CPs based on the 1,1′-bis(3-carboxylatobenzyl)-4,4′-bipyridinium moiety

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Supplementary files

Article information


Submitted
14 Jan 2020
Accepted
04 Mar 2020
First published
04 Mar 2020

Dalton Trans., 2020,49, 4044-4049
Article type
Communication

Metal-dependent photosensitivity of three isostructural 1D CPs based on the 1,1′-bis(3-carboxylatobenzyl)-4,4′-bipyridinium moiety

J. Liu, Y. Lu and W. Lu, Dalton Trans., 2020, 49, 4044
DOI: 10.1039/D0DT00157K

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