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Issue 2, 2017
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Cu2+-Selectivity gated photochromism in Schiff-modified diarylethenes with a star-shaped structure

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Abstract

A great deal of effort has been devoted to developing gated photochromic systems due to their advantages in the smart materials and opto-electronic fields, whereas the gating function through certain ions has rarely been addressed. Since the photochromic materials gated by ions can be readily further processed into a multi-functional molecular switch and probe, we herein designed and conveniently synthesized a star-shaped Schiff-based diarylethene derivative showing typical photochromic properties in solution. This compound possesses two response channels (colorimetric and fluorogenic) to Cu2+ ions with photoswitching characteristics, making it a viable photochromic probe. It is noteworthy that its photochromic reactivity can be locked when Cu2+ ions are introduced into the solution. Moreover, the photoinactive and photoactive states can be interchanged reversibly by binding Cu2+ ions and unbinding Cu2+ ions using EDTA, which shows promise for application in multi-controlled molecular switches and smart materials. The mechanism of the photochromic properties locked by Cu2+ ions is reasonably proposed by theoretical simulations. These results could be valuable for the further development of molecular switching systems with multiple stimuli responses.

Graphical abstract: Cu2+-Selectivity gated photochromism in Schiff-modified diarylethenes with a star-shaped structure

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Publication details

The article was received on 02 Nov 2016, accepted on 01 Dec 2016 and first published on 01 Dec 2016


Article type: Paper
DOI: 10.1039/C6TC04756D
Citation: J. Mater. Chem. C, 2017,5, 282-289
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    Cu2+-Selectivity gated photochromism in Schiff-modified diarylethenes with a star-shaped structure

    S. Wang, X. Li, W. Zhao, X. Chen, J. Zhang, H. Ågren, Q. Zou, L. Zhu and W. Chen, J. Mater. Chem. C, 2017, 5, 282
    DOI: 10.1039/C6TC04756D

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