On the applications of mixed liquid crystals of opposite diamagnetic anisotropies to organometallic systems; NMR spectra of oriented phenylselenyl bromide

Abstract

NMR spectra of molecules oriented in mixed liquid crystals of opposite diamagnetic anisotropies, which permit the unique evaluation of the heteronuclear direct and indirect spin-spin couplings separately, have been used to determine the 1H-77Se coupling constants in phenylselenyl bromide. The derived direct dipolar couplings have been used to determine molecular geometry.