Raman scattering study of low-frequency molecular vibrations in orthoterphenyl and perdeuterated orthoterphenyl (CROSBI ID 85831)
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Podaci o odgovornosti
Kirin, Davor ; Volovšek, Vesna ; Pick, Robert M.
engleski
Raman scattering study of low-frequency molecular vibrations in orthoterphenyl and perdeuterated orthoterphenyl
The low-frequency Raman spectra of orthoterphenyl and perdeuterated orthoterphenyl crystals and melts were studied in a temperature range from 10 to 335 K. Attention was devoted particularly to the low-frequency part of the spectrum (10200 cm(-1)). Several low-frequency intramolecular modes with frequencies below 150 cm(-1) were clearly observed in the orthoterphenyl melt. The implication of the present results on the existing empirical models of the liquid-glass transition in orthoterphenyl is discussed.
glass phase; low frequency vibrations; Raman spectroscopy
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