Tris-fused tetrathiafulvalenes (TTF): highly conducting single-component organics and metallic charge-transfer salt

被引:16
作者
Ashizawa, M
Kimura, S
Mori, T [1 ]
Misaki, Y
Tanaka, K
机构
[1] Tokyo Inst Technol, Fac Engn, Dept Organ & Polymer Mat, Tokyo 1528552, Japan
[2] Kyoto Univ, Grad Sch Engn, Div Mol Engn, Yoshida, Kyoto 6068501, Japan
关键词
tetrathiafulvalenes; coupling reactions; crystal structured; electrical conductivity;
D O I
10.1016/S0379-6779(03)00416-8
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Tris-fused tetrathiafulvalene (TTF) derivatives, TTCn-TTPY, 2,2'-bis[4,5-alkylthio-(1,3-dithiol-2-ylidene)-1,3,4,6-tetrathiapentalenytidene] with four alkylthio chains [CnH2n+1S-: n = 3-5] are prepared and the structural and conducting properties are investigated. Crystals of the neutral molecules show very low electrical resistivity (400 Omega cm) as single-component pure organic materials. Irrespective of the alkylthio chain length, the crystal structures are so-called beta"-type consisting of uniform stacks of the tris-fused TTF parts. Iodine-doped TTC3-TTPY exhibits metallic conductivity down to liquid helium temperature. (C) 2003 Elsevier B.V. All rights reserved.
引用
收藏
页码:307 / 313
页数:7
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