RAMAN-ACTIVE MOLECULAR VIBRATIONS IN THE ORGANIC SUPERCONDUCTOR A-[BIS(ETHYLENEDITHIO)TETRATHIAFULVALENE]2CU(NCS)2

Authors
SUGAI S MORI H YAMOCHI H SAITO G
Citation
S. Sugai et al., RAMAN-ACTIVE MOLECULAR VIBRATIONS IN THE ORGANIC SUPERCONDUCTOR A-[BIS(ETHYLENEDITHIO)TETRATHIAFULVALENE]2CU(NCS)2, Physical review. B, Condensed matter, 47(21), 1993, pp. 14374-14379
Citations number
32
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physical review. B, Condensed matter → ACNP
ISSN journal
01631829
Volume
47
Issue
21
Year of publication
1993
Pages
14374 - 14379
Database
ISI
SICI code
0163-1829(1993)47:21<14374:RMVITO>2.0.ZU;2-2
Abstract
Molecular vibrations of a-[bis(ethylenedithio)tetrathiafulvalene]2Cu(N CS)2 and its deuterated salt were investigated by Raman scattering. Th e polarization configuration, incident laser wavelength, and temperatu re dependence were measured. The observed peaks were assigned with the help of isotope shift, and the electron molecular-vibration coupling constants were estimated in cooperation with infrared data. The 502-cm -1 mode has the largest coupling constant lambda = 0.23 (0.30) in the b (c) direction. The 1474-cm-1 mode is next, lambda = 0.14 (0.17) in t he b (c) direction.