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Oxa[7]superhelicene: A π‐Extended Helical Chromophore Based on Hexa‐ peri ‐hexabenzocoronenes
Author(s) -
Reger David,
Haines Philipp,
Heinemann Frank W.,
Guldi Dirk M.,
Jux Norbert
Publication year - 2018
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201800585
Subject(s) - hexa , helicene , chromophore , mass spectrometry , peri , chemistry , stereochemistry , organic chemistry , molecule , crystallography , chromatography , art , literature
A novel π‐extended “superhelicene” based on hexa‐peri‐hexabenzocoronenes (HBCs) has been synthesized by an efficient four‐step synthetic procedure starting from diphenyl ether. Comprehensive structural analysis of the helicene was performed by NMR spectroscopy and mass spectrometry measurements together with X‐ray analysis. Physicochemical analysis of the superhelicene and suitable HBC references revealed it had outstanding fluorescent features with quantum yields of over 80 %.