Author/Authors :
Olejniczak، نويسنده , , I. and Graja، نويسنده , , A. and Kushch، نويسنده , , N.D. and Cassoux، نويسنده , , P. and Kobayashi، نويسنده , , H.، نويسنده ,
Abstract :
The infrared and Raman spectra of neutral bis(ethylenedithio)tetraselenafulvalene (BETS) as powder sample are reported. An assignment of the fundamental vibrational modes is presented. The results are used for analysis of absorption spectra and microreflectance polarized IR spectra of single crystal κ-(BETS)2FeCl4. The vibrational features of the spectra have been essentially assigned to a mixture of normally-inactive totally-symmetric Ag modes and IR-active modes of other symmetries. The electronic spectrum is also investigated.
Keywords :
infrared and Raman spectroscopy , Reflection spectroscopy , Organic conductors based on radical cation and/or anion salts , UV-Vis-NIR absorption
