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Optical Waveguiding Organic Single Crystals Exhibiting Physical and Chemical Bending Features
Angewandte Chemie International Edition ( IF 12.257 ) Pub Date : 2020-01-13 , DOI: 10.1002/anie.201914026
Hongyu Zhang; Zhuoqun Lu; Yuping Zhang; Hao Liu; Wentao Liu; Kaiqi Ye

Bendable (elastic and plastic) organic single crystals have been widely studied as emerging flexible materials with highly ordered packing structures. However, even though manifold bendable organic crystals have been recently reported, most of them only display bending ability under the single circumstance. Herein, we report an organic single crystal of ( Z )‐4‐(1‐cyano‐2‐(4‐(dimethylamino)phenyl)vinyl)benzonitrile, which could bend under external stress (physical process) or in the hydrochloric acid atmosphere (chemical process). This observation indicates that multiple crystal bending modes might be achieved in the same single organic crystal by simultaneously optimizing the structure at both molecular and supramolecular levels. Furthermore, the crystal exhibits bright orange‐yellow emission and possesses good property of active low‐loss optical waveguide in both the straight and the bent state, which indicates a potential optical application.
更新日期:2020-01-14

 

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