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Temperature‐Responsive Chiral (A) 6 B Supramolecular Cages Based on Conformational Preferences
Author(s) -
Chen ShiGui,
Zhao ZhiXiong,
Jiang XiaoNan,
Wang Lu,
Zhou TianYou,
Lu ChengLu,
Zhao Xin,
Jiang XiKui,
Ma Yuguo,
Wang RenXiao,
Li ZhanTing
Publication year - 2016
Publication title -
chemistry – an asian journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.18
H-Index - 106
eISSN - 1861-471X
pISSN - 1861-4728
DOI - 10.1002/asia.201501090
Subject(s) - supramolecular chemistry , crystallography , chemistry , stereochemistry , materials science , crystal structure
Two chiral (A) 6 B‐typed supramolecular cages were constructed from hydrogen‐bonded C 6 ‐symmetric zinc porphyrin hexamers and chiral C 3 ‐symmetric pyridyl hexadentates with a core of 1,3,5‐triphenylbenzene. Circular dichroism and molecular simulations revealed that the symmetry of the supramolecular cages switched from pseudo‐ C 3 v to C 3 with the rotational confinement of the biphenyl backbones at low temperatures, which generated conformationally chiral transfer and amplification. This unique phenomenon suggests a new strategy to develop smart materials with high sensitivity and excellent reversibility.