SPECTROSCOPIC INVESTIGATIONS OF CHARGE-TRANSFER SALT VIN-PHI(2)(TCNQ)2

VIN Phi(2)(TCNQ)(2) is a salt with two different, non-parallel TCNQ st acks. The polarized reflectance spectra from single crystals in the IR legion 660-5200 cm(-1), the powder absorption spectra 400-45000 cm(-1 ) and FT-NIR Raman spectra of VIN Phi(2)(TCNQ)(2) are measured at room temperature. Moreover, the temperature dependence of powder absorptio n spectra in the frequency range 400-7900 cm(-1) are studied. The natu re of electronic bands, the anisotropy of optical conductivity, the te mperature dependence of some vibrational bands and the charge distribu tion on different TCNQ stacks are discussed.