Conformational equilibrium in 1,2-dibromoethane

Static permittivities of 1, 2-di bromoethane + n-hexane, + 2, 2-dimethylbutane, + tetrachloromethane, and + n-hexadecane, between 288.15 and 318.15 K (298.15 K for the latter) at intervals of 10 K, were measured. The equilibrium constants for the conformational equilibrium at the four indicated temperatures were calculated, covering the whole range of mole fraction . Application of t he van't Hof f equation leads to an estimation of the conformational enthalpy .We gratefully thank for financial assistence of Comisión Asesora de Investigación Científica y Técnica (Madrid) .Peer Reviewe