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Cover Feature: Control of Circularly Polarized Luminescence by Orientation of Stacked π‐Electron Systems (Chem. Asian J. 10/2019)
Author(s) -
Kikuchi Katsuaki,
Nakamura Jun,
Nagata Yuuya,
Tsuchida Hiromu,
Kakuta Takahiro,
Ogoshi Tomoki,
Morisaki Yasuhiro
Publication year - 2019
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.201900090
Subject(s) - luminescence , planar , cover (algebra) , molecule , enantiomer , electron , orientation (vector space) , circular polarization , planar chirality , sign (mathematics) , chirality (physics) , materials science , crystallography , chemistry , molecular physics , optoelectronics , physics , optics , stereochemistry , geometry , computer science , organic chemistry , engineering , chiral symmetry , mathematics , enantioselective synthesis , computer graphics (images) , mathematical analysis , quantum mechanics , nambu–jona lasinio model , catalysis , mechanical engineering , microstrip , quark
Planar chiral building blocks based on 4,7,12,15‐tetrasubstituted [2.2]paracyclophanes were prepared. Planar chiral enantiomers, comprising two fluorophores that were stacked to form a V‐shaped higher‐ordered structure, were synthesized from these building blocks. The V‐shaped molecules emitted intense circularly polarized luminescence (CPL). Their chiroptical properties were compared with those of X‐shaped molecules bearing the same two fluorophores stacked together. The CPL sign of the X‐shaped molecule was opposite to that of the V‐shaped molecule, which is supported by the theoretical results, indicating that the CPL sign can be controlled by the orientation of the stacked fluorophores. More information can be found in the Communication by Yasuhiro Morisaki et al. on page 1681 in Issue 10, 2019 (DOI: 10.1002/asia.201801741).