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Biased Symmetry Breaking and Chiral Control by Self‐Replicating in Achiral Tetradentate Platinum (II) Complexes
Author(s) -
Yang Bo,
Zou Guo,
Zhang Shilin,
Ni Hailiang,
Wang Haifeng,
Xu Wei,
Yang Cheng,
Zhang Hui,
Yu Wenhao,
Luo Kaijun
Publication year - 2021
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.202101709
Subject(s) - mesophase , chiral symmetry breaking , liquid crystal , crystallography , molecule , homochirality , self assembly , platinum , symmetry breaking , twist , materials science , chemistry , stereochemistry , enantiomer , nanotechnology , physics , organic chemistry , catalysis , optoelectronics , geometry , quantum mechanics , mathematics
Obtaining homochirality from biased symmetry‐breaking of self‐assembly in achiral molecules remains a great challenge due to the lack of ingenious strategies and controlling their handedness. Here, we report the first case of biased symmetry breaking from achiral platinum (II) liquid crystals which self‐organize into an enantiomerically enriched single domain without selection of handedness in twist grain boundary TGB [ * ] phase. Most importantly, the chiral control of self‐organization can be achieved by using above the homochiral liquid crystal films with determined handedness (P or M) as a template. Moreover, benefiting from self‐assembled superhelix, these complexes exhibit prominent circularly polarized luminescence with high |g lum | up to 3.4×10 −3 in the TGB [ * ] mesophase. This work paves a neoteric avenue for the development of chiral self‐assemblies from achiral molecules.