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Carbon‐13 chemical shifts of monosubstituted cyclohexanes
Author(s) -
Pehk T.,
Lippmaa E.
Publication year - 1971
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.1270030606
Subject(s) - alicyclic compound , cyclohexanes , chemistry , cyclohexane , molecule , inductive effect , chemical shift , delocalized electron , carbon fibers , organic chemistry , computational chemistry , materials science , composite number , composite material
The carbon‐13 chemical shifts of monosubstituted cyclohexane derivatives are compared with those of aliphatic compounds. The polar substituents exert a similar influence on the α‐, β‐ and γ‐carbons in both series of compounds. The δ‐effect is shown to be characteristic mainly to the cyclic compounds, however. The appearance of a δ‐effect is discussed as a possible consequence of electron delocalization in alicyclic molecules. A correlation of these δ‐effects with inductive parameters of the substituents is presented.