K. Bechgaard et al., THE PROPERTIES OF 5 HIGHLY CONDUCTING SALTS - (TMTSF)2X,X=PF6-, ASF6-, SBF6-, BF4- AND NO3-, DERIVED FROM TETRAMETHYLTETRASELENAFULVALENE (TMTSF) (REPRINTED FROM SOLID-STATE COMMUN, VOL 33, PG 1119-1125, 1980), Solid state communications, 88(11-12), 1993, pp. 963-969
The properties of five new highly conducting salts of TMTSF, (TMTSF)2X
, X = PF6-, AsF6-, SbF6-, BF4- and NO3- are reported. The measurements
include dc. and M.W. conductivity, thermopower, optical reflectivity,
magnetic susceptibility and F-19-NMR. Preliminary structural data ind
icate uniform donor stacks. Metal to insulator transitions in four mat
erials occur below 20 K, where specific conductivities higher than 10(
5) (OMEGA-cm)-1 are observed for two salts (X = PF6- and NO3-).