Issue 12, 2012
From the journal:

New Journal of Chemistry

Photochromism of (E)-4-phenyl-1-(pyridine-2-ylmethylene)semicarbazide†

Lirong Lin,*a   Weizhen Fan,a   Shui Chen,a   Jie Ma,a   Wangxia Hu,a   Yiji Lin,a   Hui Zhanga  and  Rongbin Huanga  

* Corresponding authors

a Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
E-mail: linlr@xmu.edu.cn
Fax: +86 592 2183047
Tel: +86 0592-2185191

Abstract

A photochromism molecule, (E)-4-phenyl-1-(pyridine-2-ylmethylene)semicarbazide (1), was reported. Photochromism of 1 in solution was shown to result from the trans–cis photoisomerization of its C[double bond, length as m-dash]N double bond, by using absorption, 1H NMR (including 2D NOESY) and directly the crystal structure of 1 obtained from solutions before and after UV irradiation. Photochromism of 1 in the solid state was found to take place, too, but via changes in the molecular geometry and packing upon UV irradiation.

Graphical abstract: Photochromism of (E)-4-phenyl-1-(pyridine-2-ylmethylene)semicarbazide

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Article information

DOI
https://doi.org/10.1039/C2NJ40468K
Article type
Paper
Submitted
07 Jun 2012
Accepted
14 Sep 2012
First published
18 Sep 2012

New J. Chem., 2012,36, 2562-2567

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Photochromism of (E)-4-phenyl-1-(pyridine-2-ylmethylene)semicarbazide

L. Lin, W. Fan, S. Chen, J. Ma, W. Hu, Y. Lin, H. Zhang and R. Huang, New J. Chem., 2012, 36, 2562 DOI: 10.1039/C2NJ40468K

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