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Carbon‐13 chemical shifts of substituted nortricyclenes
Author(s) -
Lippmaa E.,
Pehk T.,
Paasivirta J.
Publication year - 1973
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.1270050607
Subject(s) - substituent , chemical shift , steric effects , molecule , chemistry , computational chemistry , carbon fibers , spectral line , stereochemistry , organic chemistry , materials science , physics , astronomy , composite number , composite material
13 C NMR spectra of a series of substituted nortricyclene derivatives have been measured, and the 13 C chemical shifts interpreted in terms of α, β, γ and δ‐effects. The nature of these substiuent shifts is discussed together with some analytical possibilities. The substituent shifts provide valuable data about the steric effects in strained molecules and can be used as increments for structural analysis, particularly for the determination of orientations of substituent groups.