Spectroscopic Investigations of Charge Transfer Salt VINΦ2(TCNQ)2 |
| A. Łapiński, R. Świetlik Institute of Molecular Physics, Polish Academy of Sciences, Smoluchowskiego 17, 60-179 Poznań, Poland H. Strzelecka and M. Veber ESPCI-CNRS, 10 rue Vauquelin, 75231 Paris, France |
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| VINΦ2(TCNQ)2 is a salt with two different, non-parallel TCNQ stacks. The polarized reflectance spectra from single crystals in the IR region 660-5200 cm-1, the powder absorption spectra 400-45000 cm-1 and FT-NIR Raman spectra of VINΦ2(TCNQ)2 are measured at room temperature. Moreover, the temperature dependence of powder absorption spectra in the frequency range 400-7900 cm-1 are studied. The nature of electronic bands, the anisotropy of optical conductivity, the temperature dependence of some vibrational bands and the charge distribution on different TCNQ stacks are discussed. |
| DOI: 10.12693/APhysPolA.87.835 PACS numbers: 71.38.+i, 78.30.Jw, 78.40.-q |