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Application of NMR spectroscopy of chiral association complexes. 13 —electron donor–acceptor complexes between racemic carbazolo[3,4‐ c ]carbazoles and an optically active acceptor
Author(s) -
İçli Siddik,
Burgemeister Thomas,
Mannschreck Albrecht,
Zander Maximilian
Publication year - 1982
Publication title -
organic magnetic resonance
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.483
H-Index - 72
eISSN - 1097-458X
pISSN - 0030-4921
DOI - 10.1002/mrc.1270200306
Subject(s) - diastereomer , chirality (physics) , acceptor , chemistry , spectroscopy , optically active , nuclear magnetic resonance spectroscopy , electron donor , electron acceptor , proton nmr , stereochemistry , derivative (finance) , photochemistry , crystallography , catalysis , organic chemistry , chiral symmetry , physics , condensed matter physics , quantum mechanics , nambu–jona lasinio model , quark , financial economics , economics
Strong electron donor–acceptor (EDA) association between carbazolo[3,4‐ c ]carbazoles and an optically active tetranitrofluorenone derivative was detected by UV–visible spectroscopy and by 1 H NMR shifts. 1 H NMR splittings at low temperatures are due to diastereomeric association complexes and, thus, prove the chirality of carbazolocarbazoles.