The NMR spectra for four ortho- and meta-halosubstituted fluorobenzenes oriented in a lyotropic mesophase have been recorded and analyzed. The direct coupling constants obtained were corrected for harmonic vibrations and used to calculate proton and fluorine distance ratios and order tensors. Results are compared to those of other halobenzenes oriented in the same lyotropic mesophase.

AbstractThe 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.

The NMR spectrum of ethylene oxide has been analyzed for carbon-13 satellites in the liquid crystal, Merck ZLI 1167. Structures derived from vibrationally corrected direct couplings indicate good agreement with gas-phase results. Application of vibrational corrections to previous couplings gives structural parameters suggesting significant distortions from above studies.