Phase transition in the conductive molecular crystals bis(tetramethyltetraselenafulvalene)[bis(trifluoromethyl)ethylene]diselenolatonickel and -platinum, [TMTSF]2[M(tds)2), M = nickel, platinum. Relation to the copper analog
A novel phase transition in conductive molecular crystals based on metal bis-diselenoalkene complexes: [TMTSF]2[M{Se2C2(CF3)2]; M = Ni, Pt; TMTSF = tetramethyltetraselenafulvalene
作者:William B. Heuer、Brian M. Hoffman
DOI:10.1039/c39860000174
日期:——
Single crystals of [TMTSF]2[MSe2C2(CF3)2}2](TMTSF = tetramethyltetraselenafulvalene; M = Ni, Pt) have room-temperature conductivities of 20–65 Ω;–1 cm–1 and upon cooling undergo an unprecedented phasetransition in which the low temperature phase shows enhanced electrical conductivity: M = Ni, Tc=ca. 275 K; M = Pt, Tc=ca. 245 K.
[TMTSF] 2 [M Se 2 C 2(CF 3)2 } 2 ](TMTSF =四甲基四硒富勒烯; M = Ni,Pt)单晶的室温电导率为20-65Ω;–1 cm –1并在冷却后经历了前所未有的相变,其中低温相显示出增强的电导率:M = Ni,T c = ca。275 K;M = Pt,T c =约。245千。