Microreflectance Infrared Study of Bis(Ethylenedithio)-Tetrathiafulvalene (BEDT-TTF or ET) Salts-Reference-Cited by-同舟云学术

Microreflectance Infrared Study of Bis(Ethylenedithio)-Tetrathiafulvalene (BEDT-TTF or ET) Salts

Published:1992-10 Issue:10 Volume:46 Page:1520-1524
ISSN:0003-7028
Container-title:Applied Spectroscopy
language:en
Short-container-title:Appl Spectrosc

Author:

Ferraro John R.¹,Wang H. Hau¹,Whangbo Myung-Hwan¹,Stout Phil¹

Affiliation:

1. Chemistry and Materials Science Divisions, Argonne National Laboratory, Argonne, Illinois 60439 (J.R.F., H.H.W.); Department of Chemistry, North Carolina State University, Raleigh, North Carolina 27695-8204 (M.-H.W.); and Bio-Rad, Digilab Division, Cambridge, Massachusetts 02137 (P.S.)

Abstract

For several β- and κ-phase salts of bis(ethylenedithio)tetrathiafulvalene (BEDT-TTF or simply ET) and its deuterium analog d8-ET, microreflectance infrared spectra were obtained by employing polarized and unpolarized light, and their vibronic regions were examined. These salts exhibit a strong vibronic absorption under polarized light. The vibronic absorption of the β-phase salts has a much stronger polarization-dependency than that found for the κ-phase salts. For the β-phase salts, the optimum vibronic absorption occurs when the polarized light vector is parallel to their donor-molecule stacking direction. Among the ET salts without structural disorder, the highest C-C-H bending frequency for the superconductors is lower than ∼1320 cm−1 while that for the non-superconductors is higher than ∼1320 cm−1.

Publisher

SAGE Publications

Subject

Spectroscopy,Instrumentation

Link

http://journals.sagepub.com/doi/pdf/10.1366/000370292789619313

Reference38 articles.

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