Vibrational Assignments of the Epihalohydrins

Abstract

Liquid-, solution-, solid-, and vapor-phase infrared spectral data have been recorded for the epihalohydrins. The IR data recorded of the various physical phases enables specific band assignment for both rotational isomers. The spatial configuration of the rotational isomer existing in the solid phase is different from the spatial configuration of the rotational isomer existing in the vapor phase, while both spatial configurations exist in the liquid phase or solution phase. Vibrational frequency assignments are aided by comparison with vibrational assignments for the 3-halopropynes and the 3-halopropenes. Raman data are also used in making the vibrational assignments for epichlorohydrin, epibromohydrin, and epiiodohydrin.