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Cover Feature: π‐Extended Diaza[7]helicenes by Hybridization of Naphthalene Diimides and Hexa‐ peri ‐hexabenzocoronenes (Chem. Eur. J. 7/2021)
Author(s) -
Dusold Carolin,
Sharapa Dmitry I.,
Hampel Frank,
Hirsch Andreas
Publication year - 2021
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.202004807
Subject(s) - hexa , helicene , enantiomer , superstructure , chemistry , cover (algebra) , peri , naphthalene , azulene , stereochemistry , crystallography , molecule , organic chemistry , physics , philosophy , engineering , mechanical engineering , thermodynamics , theology
A hexa‐ peri ‐hexabenzocoronen based diaza[7]helicene was synthesized featuring a wide lateral π‐extension of the inner helix. This was guaranteed by hybridization with two naphthaleneimide moieties. The helical superstructure was formed as the only isomer during final Scholl oxidation with remarkable selectivity. Successful separation of the enantiomers allowed for the detailed analysis of the chemical, optical and chiroptical properties, which were supported by quantum mechanical calculations. The cover image was designed by Cornelius Weiss. More information can be found in the Full Paper by A. Hirsch et al. on page 2332.