31P and 13C NMR study of tribenzolyphosphine (C-C6H5)3 Oriented in a Liquid Crystal

Abstract
The 13C and 31P NMR spectra of the triply 13C 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.