A review of the recently published papers devoted to measurements of the INS spectra of various compounds is presented. Mainly the papers dealing with the intramolecular modes of low frequency are selected. It is shown that the INS technique is particularly useful in studies on deformation modes into which the vibrations of hydrogen atoms are involved. This spectroscopic region encounters some difficulties when analyzing the infra-red (IR) and Raman (R) spectra only. In that case the selection rules obey and moreover the intensities of respective bands can be very low. In contrast, such modes in INS spectra are characterized by the high intensities. The INS method can be considered as an important tool supplementing the widely exploited IR and R methodology. It seems important to note that the INS technique could be very useful in studies on the lattice effects on the molecular internal dynamics.