期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 56, 期 10, 页码 2660-2663出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201612024
关键词
cryogenic treatment; crystalline compounds; dipeptides; organogels; self-assembly
资金
- National Natural Science Foundation of China [21433010, 21320102004, 21273250, 21573248, 21303219, 21003074]
- National Basic Research Program of China (973 program) [2013CB932802]
Controlled molecular assembly is an important approach for the synthesis of single-component materials with diverse functions. Unlike traditional heat treatment or solvent modulation, cryogenic treatment at 77 K enabled the tunable transition of a self-assembled diphenylalanine organogel into a hexagonal crystal. Under these conditions, the assembled molecules undergo an internal rearrangement in the solid state to form a well-defined chiral crystal structure. Moreover, these assemblies exhibit enhanced emission. This strategy for the synthesis of single-component supramolecular assemblies can create new functions by manipulating phase transitions.
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