Metallic conductivity in a disordered charge-transfer salt derived from cis-BET-TTF

Authors :: Marie-Liesse Doublet
J. Tarres
Jaume Veciana
Dwaine O. Cowan
E. Ribera
Elies Molins
M. Mas
S. Yang
Carme Rovira
Vladimir Laukhin
Enric Canadell
Source :: Synthetic Metals. 86:2145-2146
Publication Year :: 1997
Publisher :: Elsevier BV, 1997.
Abstract: The first example of a metallic charge-transfer salt derived from cis -bis(ethylenethio)-tetrathiafulvalene (BET-TTF) is reported. (BET-TTF) 2 SCN and (BET-TTF)SCN salts were obtained by electrocrystallization starting from trans -BET-TTF. X-ray crystal structure of the mixed-valence salt revealed that trans-cis isomerization occurs upon one electron oxidation. In spite of the structural disorder in both BET-TTF and the counterion, 2:1 salt is metallic down to 60 K and then resistance increases slowly down to 4K.

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