NMR geometry and interaction parameters of methylisocyanide in various liquid-crystalline environments

Abstract

The NMR rα geometry of methylisocyanide has been studied in two liquid-crystal solvents and their mixtures by applying both the conventional technique, which takes into consideration only the harmonic vibrational effects on the dipolar couplings, and a method which also allows for orientation-dependent molecular deformations induced by the anisotropic environment. The latter analysis gives as a by-product the interaction parameters, ΔA, which describe the anisotropic forces acting on the three different bonds of methylisocyanide dissolved in liquid-crystalline phases. © 1988.