Raman Study of the Phase Transitions in Naphthalene up to 14 GPa
Access this Article
Search this Article
Raman spectra of lattice modes and internal modes of C<SUB>10</SUB>H<SUB>8</SUB> have been obtained at room temperature up to 14 GPa in diamond anvil cell. Data obtained show the existence of three phases for crystalline naphthalene. The two phase transitions were determined at pressure points of discontinuous change in the slopes of v (P) dependence of both external and internal Raman active modes. The first transformation, at 3±0. 3 GPa, corresponds to naphthalene I - naphthalene II transition, discovered by Bridgman at higher temperatures, and not observed in previous room temperature measurements. The second transition, at 8±0. 5 GPa, seems to indicate the existence of a new phase, naphthalene III.
- The Review of High Pressure Science and Technology
The Review of High Pressure Science and Technology 7, 742-744, 1998
The Japan Society of High Pressure Science and Technology