Infrared Absorption Spectra of Urea, Thiourea, and Some Thiourea-Alkali Halide Complexes

Abstract

The infrared absorption spectra of urea, thiourea, and thiourea complexes with cesium bromide, potassium iodide, potassium bromide, sodium bromide, and sodium iodide have been observed from 2 to 40 μ, except for the sodium iodide complex which was studied between 2 and 15 μ. The vibrations of urea and thiourea are assigned on the basis of a planar C2v structure.