Raman Characterization of the BEDT-TTF(ClO4)2 Salt

Abstract
The major Raman scattering peaks of BEDT-TTF(ClO4)2 have been assigned by comparison to the isotopically labeled 13C(4)-BEDT-TTF(ClO4)2 and 13C(6)-BEDT-TTF(ClO4)2 salts. The υ2, υ3, and υ6 A g modes are associated with the C=C vibrations and the Raman shifts are found to decrease with increasing oxidation state of the ET molecules. The υ9 and υ10 A g modes are associated with the sulfur (C-S) related vibrations and the Raman shifts are observed to increase with increasing oxidation state of the ET molecules.