Abstract
Abstract Infrared and Raman spectra of hydantoin and its C- and N,N′-deuterated derivatives in the solid state have been recorded. The fundamental frequencies were assigned by referring to isotopic frequency shifts and vibrational spectra of related compounds. Normal coordinate analysis was carried out by using a planar Cs molecular model. A simple Urey-Bradley force field was used for the stretching and the bending coordinates and a valence force field for the out-of-plane deformation and the torsional coordinates. The force constants were refined by the least squares method to reproduce the observed frequencies.
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