Dispersion of Low Frequency Vibrations in the Deuterated Naphthalene Crystal

摘要

The dispersion curves of the lattice vibrations and of the two lowest intramolecular vibrations in d sub 8 -naphthalene (C sub 10 D sub 8 ) crystal have been measured by coherent inelastic neutron scattering for the (010) and the (100) directions at the temperature of 98 K and partially at 5 K. The results are compared with calculations based on the Kitaigorodskii parameters for C-C, C-H and H-H interactions in organic molecular crystals. (Atomindex citation 10:471437)