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77 Se, 13 C and 1 H NMR spectra of acyclic phenylselenenylalkanes and ‐alkenes and some of their selenoxides
Author(s) -
Duddeck Helmut,
Wagner Petra,
Rys Barbara
Publication year - 1993
Publication title -
magnetic resonance in chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.483
H-Index - 72
eISSN - 1097-458X
pISSN - 0749-1581
DOI - 10.1002/mrc.1260310809
Subject(s) - chemistry , chemical shift , substituent , nmr spectra database , carbon 13 nmr , stereochemistry , spectral line , physics , astronomy
The 77 Se, 13 C and 1 H NMR spectra of 57 mostly new compounds with phenylselenenyl groups attached to acyclic alkanes, alkenes and phenylalkanes and of 10 corresponding selenoxides are reported. Substituent effects on the chemical shifts of these nuclei were determined and are discussed in terms of the conformation and configuration. The results suggest that, in contrast to PhSeCCSePh fragments, CCCSe chains prefer a gauche conformation.