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Olejniczak, I., Gromadzinski, B., Graja, A., Devic, T. & Batail, P. (2004) {Optical properties of the one-dimensional organic conductors beta-(EDT-TTF-I-2)(2)(Pb5/6 1/6I2)(3) and beta-(EDT-TTF-I-2)(2)(Pb2/3+xAg1/3-2x xI2)(3). {MATERIALS SCIENCE-POLAND, 22 347–352.
Added by: Richard Baschera (2017-03-01 08:48:24) |
| Type de référence: Article Numéro d'identification (ISBN etc.): {0137-1339} Clé BibTeX: Olejniczak{2004} Voir tous les détails bibliographiques  |
Catégories: HORSIMN Créateurs: Batail, Devic, Graja, Gromadzinski, Olejniczak Collection: {MATERIALS SCIENCE-POLAND} |
Consultations : 1/457
Indice de consultation : 3% Indice de popularité : 0.75% |
| Résumé |
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{We report the room-temperature polarized infrared reflectance spectra of two radical cation salts based on halogenated TTF and two-dimensional polymeric iodoplumbate or Ag-doped iodoplumbate anions. These salts were beta-(EDT-TTF-I-2)(2)(Pb-5/(6)square(1/6)I(2))(3) and beta-(EDT-TTF-I-2)(2)(Pb(2/3+x)Ag(1/3-2x)square(x)I(2))(3), where x = 0.05 and square is a vacancy. Both materials display a metallic response, characteristic of quasi-one-dimensional organic conductors. The beta-(EDT-TTF-I-2)(2)(Pb(2/3+x)Ag(1/3-2x)square(x)I(2))(3) salt, with x = 0.05 is partly transparent along the lowest conductivity direction in the infrared frequency range. The single-crystal polarized absorption spectrum recorded in this direction displays a number of vibrational features related to the intramolecular modes of the EDT-TTF-I-2 molecule, which are assigned using available normal mode calculations. In addition, the absorption spectrum of the beta-(EDT-TTF-I-2)(2)(Pb(2/3+x)Ag(/3-2x)square(x)I(2))(3) material dispersed in a KBr pellet is reported and discussed.}
Added by: Richard Baschera |