Vibrational spectra of pyrazole in various aggregate states and their interpretation

The selection of the fundamental frequencies of pyrazole and the assignment of them to various types of vibrations were made on the basis of a comparison of the IR and Raman spectra of pyrazole and some of its isotopically substituted derivatives in various aggregate states and in the form of complexes with CdCl₂. The assignment was confirmed by prior calculation of the frequencies and forms of the vibrations of pyrazole.