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31 P and 13 C NMR study of tribenzolyphosphine (CC 6 H 5 ) 3 Oriented in a Liquid Crystal
Author(s) -
Cogne A.,
Wiesenfeld L.,
Robert J. B.,
Tyka R.
Publication year - 1980
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.1270130115
Subject(s) - liquid crystal , anisotropy , crystallography , valence (chemistry) , nmr spectra database , spectral line , chemistry , carbon 13 nmr satellite , chemical shift , nuclear magnetic resonance spectroscopy , materials science , nuclear magnetic resonance , analytical chemistry (journal) , stereochemistry , physics , fluorine 19 nmr , organic chemistry , optics , optoelectronics , astronomy
Abstract The 13 C and 31 P NMR spectra of the triply 13 C labelled tribenzoylphosphine [] oriented in a nematic phase have been recorded. From the spectral analysis one obtains the average CPC valence bond angle value (95.9°± 0.2), and the phosphorus chemical shift anisotropy Δσ(σ ∥ – σ ⊥ ) which is equal to 75 ± 15 ppm.