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1H NMR spectra of benzo[b]furan, benzo[b]thiophene and benzo[b]selenophene oriented in a lyotropic mesophase

✍ Scribed by W. E. Bechtold; J. H. Goldstein

Publisher
John Wiley and Sons
Year
1981
Tongue
English
Weight
366 KB
Volume
16
Category
Article
ISSN
0749-1581

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✦ Synopsis

Abstract

The proton nuclear magnetic resonance spectra of benzo[b]‐furan, ‐thiophene and ‐selenophene oriented in a potassium laurate lyotropic liquid crystal have been analyzed. Geometrical information has been obtained and compared to previous thermotropic results and various hypothetical models.

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## Abstract The proton NMR spectrum of benzo[__b__]furan has been investigated in the nematic phase of a liquid crystal. Dipolar couplings obtained from the spectral analysis have been used to derive the interproton distance ratios. The phenyl ring geometry differs from that in benzo[__b__]thiophen