Pressure dependence of Raman spectra of a polydiacetylene crystal
1986; Elsevier BV; Volume: 60; Issue: 9 Linguagem: Inglês
10.1016/0038-1098(86)90433-3
ISSN1879-2766
AutoresMasanori Hangyo, K. Itakura, Satοru Nakashima, Akiyoshi Mitsuishi, Hiro Matsuda, Hiroshi Nakanishi, M. Kato, Tomoyuki Kurata,
Tópico(s)Photoreceptor and optogenetics research
ResumoThe resonance Raman spectra of bis(p-toluene sulfonate) of 2,4-hexadiyne-1, 6-diol (PTS) polymer RC−C≡C−CRn, where R = CH2OSO2C6H4CH3, have been measured under hydrostatic pressure up to 36 kbar. The modes associated with the vibrations of the polymer backbone shift linearly with pressure. Their mode Grüneisen parameters are determined, which are reasonable for internal modes of molecular crystals. The change of the intensity ratio of doublets in the C=C stretch vibration region with pressure is interpreted in terms of the Fermi resonance.
Referência(s)