A NEW BIS(ETHYLENEDITHIO)TETRATHIAFULVALENE CHLORIDE - (BEDT-TTF)2CL.3H2O

被引：11

作者：

INOUE, MB ^{[1
]}

BRUCK, MA ^{[1
]}

CARDUCCI, M ^{[1
]}

FERNANDO, Q ^{[1
]}

INOUE, M ^{[1
]}

机构：

[1] UNIV SONORA,CTR INVEST POLIMEROS & MAT,SONORA,MEXICO

来源：

SYNTHETIC METALS | 1990年 / 38卷 / 03期

关键词：

D O I：

10.1016/0379-6779(90)90088-3

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A new BEDT-TTF chloride (BEDT-TTF)2Cl·3H2O was obtained by electrochemical oxidation of the donor in dichloroethane solution containing K2[Cu(OX2-)2]·2H2O (OX2-: oxalate ion). The compound crystallized in the space group Pcca with a = 32.621(1), b = 6.720(3) and c = 14.894(6) A ̊. The unit cell contained four units of the compound formula. Close side-by-side contacts of adjacent donor molecules formed a one-dimensional array that was parallel to the b-axis. In this array, the shortest SS distance of 3.47 Å was less than the van der Waals contact of 3.70 Å. The donor molecules were also stacked face-to-face along the c-axis. The shortest SS distance in the stack, however, was 3.76 Å; there was no SS pair closer than the van der Waals contact. The electrical conductivity along the b-axis was c. 90 S cm- at 300 K, and exhibited metallic temperature dependence down to c. 120 K; around this temperature, a metal-insulator transition occurred. One-dimensional charge transport is attributed to the isolated array of BEDT-TTF molecules. When K2(OX2-)·H2O was used as an electrolyte instead of the bis(oxalato)cuprate(II), the known chloride, (BEDT-TTF)3Cl2·2H2O, was obtained. © 1990.

引用

页码：353 / 361

页数：9

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