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1 H and 31 P NMR spectra of the phenyl ester of dichlorophosphoric acid in a nematic phase
Author(s) -
Hansen J.,
Jacobsen J. P.
Publication year - 1981
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.1270150108
Subject(s) - liquid crystal , planarity testing , phase (matter) , nmr spectra database , dipole , ring (chemistry) , proton nmr , spectral line , chemistry , twist , crystallography , stereochemistry , organic chemistry , physics , condensed matter physics , geometry , mathematics , astronomy
The 1 H and 31 P NMR spectra of the phenyl ester of dichlorophosphoric acid dissolved in Merck nematic phase IV have been recorded and analysed. The values of the dipole dipole couplings have been discussed in terms of several different geometric models. Non‐planarity of C‐1, O, P and the phenyl ring must be assumed in order to account for the results; a twist angle of 49° was found.