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INDOR study of long range cross‐ring couplings in heptahelicene: XX
Author(s) -
Defay Nicole
Publication year - 1974
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.1270060407
Subject(s) - ring (chemistry) , range (aeronautics) , peri , physics , philosophy , theology , chemistry , materials science , organic chemistry , composite material
Abstract INDOR experiments on heptahelicene have revealed the existence of positive 5 J 1,5 ttt( epi ), negative 4 J 4,5 cc( peri ) and | 4 J 6,7 cc | ( peri ) cross‐ring couplings.