Dynamical and structural aspects of molecular reorientation in plastic crystals of the (CH3)3CX type

Abstract

In the review article the results of the adiabatic calorimetry, dielectric, nuclear magnetic resonance, quasielastic neutron scattering and X-ray investigations for four plastically crystalline compounds of the (CH₃)₃CX type (X = Cl, Br, NO₂ and CN) are presented. On this basis the intercorrelationships between the reorientational dynamics of the molecules and the molecular and crystal structures are discussed.