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Inside Cover: New Types of Planar Chiral [2.2]Paracyclophanes and Construction of One‐Handed Double Helices (Chem. Asian J. 18/2016)
Author(s) -
Morisaki Yasuhiro,
Sawada Risa,
Gon Masayuki,
Chujo Yoshiki
Publication year - 2016
Publication title -
chemistry – an asian journal
Language(s) - English
Resource type - Reports
SCImago Journal Rank - 1.18
H-Index - 106
eISSN - 1861-471X
pISSN - 1861-4728
DOI - 10.1002/asia.201601081
Subject(s) - planar , luminescence , benzene , cover (algebra) , crystallography , materials science , phenylene , photoluminescence , block (permutation group theory) , planar chirality , stereochemistry , chemistry , enantioselective synthesis , optoelectronics , combinatorics , mathematics , computer science , organic chemistry , polymer , catalysis , computer graphics (images) , composite material , mechanical engineering , engineering
Left‐ and right‐handed double‐helical structures were constructed using planar chiral tetrasubstituted [2.2]paracyclophane as a chiral building block. Two boomerang‐shaped π‐conjugated compounds consisting of five benzene rings are fixed and stacked in proximity at the second and fourth phenylene units to form one‐handed double helices. The compounds are optically active and excellent circularly polarized luminescence (CPL) emitters with large molar extinction coefficients, good photoluminescence quantum efficiencies, and large CPL dissymmetry factors. More information can be found in the Communication by Yasuhiro Morisaki, Yoshiki Chujo et al. on page 2524 in Issue 18, 2016 (DOI: 10.1002/asia.201601028).