Portal de Periódicos da CAPES

Analysis and Interpretation of the Reflectance Spectra of BEDT-TTF Based Charge-Transfer Salts (Organic Super-conductors and Conductors)

1990; Taylor & Francis; Volume: 181; Issue: 1 Linguagem: Inglês

10.1080/00268949008036009

1044-1859

John R. Ferraro, Jack M. Williams,

Molecular Junctions and Nanostructures

Abstract Polarized micro-reflectance spectra of BEDT-TTF (ET) based charge-transfer (CT) superconductors and conductors are analyzed and interpreted. The paper discusses results which have allowed us to differentiate between various structural phases for (ET)2X type salts, obtain information concerning the nature of the environment in the important structure-determining anion-hydrogen cavity of these salts, and in identifying impurities present in the salts. Possible relationships of the -C-C-H bending frequency to the electronegativity of the halogen atom in the anion- hydrogen cavity and to lattice softness are cited.