Shaping Crystals with Light: Crystal-to-Crystal Isomerization and Photomechanical Effect in Fluorinated Azobenzenes

被引：263
作者：
Bushuyev, Oleksandr S.
Tomberg, Anna
Friscic, Tomislav [1 ]
Barrett, Christopher J.
机构：
[1] McGill Univ, Dept Chem, Montreal, PQ H3A 0B8, Canada
来源：
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2013年 / 135卷 / 34期
基金：
加拿大自然科学与工程研究理事会; 加拿大创新基金会;
关键词：
SINGLE-CRYSTAL; MOTION; PHOTOISOMERIZATION; PHOTOSWITCHES; PHOTODRIVEN; SWITCHES; BEHAVIOR; FILMS;
D O I：
10.1021/ja4063019
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Unusually long thermal half-lives of perhalogenated cis-azobenzenes enabled their structural characterization and the first evidence of a crystal-to-crystal cis -> trans azobenzene isomerization. Irradiation with visible light transforms a perhalogenated cis-azobenzene single crystal into a polycrystalline aggregate of its trans-isomer in a photomechanical transformation that involves a significant, controllable, and thermally irreversible change of crystal shape. This is the first demonstration of permanent photomechanical modification of crystal shape in an azobenzene.
引用
收藏
页码：12556 / 12559
页数：4
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