  The carried out polarization examinations of C10H8 spectrums of small
frequencies of a Raman effect of light has revealed the presence of additional
lines of small intensity. Calculation of histograms of spectrums of the lattice
oscillations is carried out by Dyne's method. It is shown, that the presence of
vacancies in structure of C10H8 leads to occurrence of additional lines around
90 cm-1. Occurrence of lines at frequencies less then 30 cm-1 is attributed to
the presence of orientation disorder of molecules. Apparently, structure C10H8
has both types of defects, both orientation disorder of molecules and
vacancies, which causes occurrence of additional lines in a spectrum of small
frequencies.
