Abstract
Spectral investigations of the new organic metal β-(EDT-DTDSF) 4Hg 3I 8 were performed. Polarized reflectance (from 500 to 17000 cm −1) and Raman spectra of single crystals were studied at room temperature. An electronic dispersion in IR spectra was analyzed versus temperature (from 4 to 300 K) in terms of the Drude model and optical transport parameters were determined. Additionally, the optical absorption spectra of the powdered salt dispersed in KBr pellets were measured in the 400–45 000 cm −1 range. The proposed assignment of vibrational features of β-(EDT-DTDSF) 4Hg 3I 8 salt was based on ab initio calculations of the normal modes of EDT-DTDSF 0 and EDT-DTDSF +.
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