Crystal Structures, and Electrical Conducting and Magnetic Properties in the Plate Crystals of (Ethylenedithiotetrathiafulvalenoquinone-1,3-dithiolemethide)2·MX4 (M=Fe, Ga, X=Br; M=Fe, X=C1) Salts
作者:Takuya Matsumoto、Tsuyoshi Kominami、Kazumasa Ueda、Toyonari Sugimoto、Toshiji Tada、Harukazu Yoshino、Keizo Murata、Motoo Shiro、Ei-ichi Negishi、Hiroshi Matsui、Naoki Toyota、Satoshi Endo、Kazuko Takahashi
DOI:10.1006/jssc.2002.9688
日期:2002.11
room-temperature electrical conductivities of 12·FeBr4 and 12·GaBr4 are fairly high (10–15 S cm−1), but a small value (0.8 S cm−1) is obtained for 12·FeCl4. For all CT salts, temperature dependences of electrical conductivity are semiconducting in spite of very small activation energies (30–90 meV). Based on the comparison between their electrical conducting and magnetic properties, it is suggested
由新的供体分子,ethylenedithiotetrathiafulvalenoquinone -1,3- dithiolemethide(1)FeBr的反应3,贾布尔3或的FeCl 3在CH 3 CN / CS 2电荷转移(CT)与FeBr的抗衡阴离子的盐1 4 - ,贾布尔4 -或的FeCl 4 -(1 2 ·FeBr 4,1 2 ·贾布尔4和1 2 ·的FeCl 4),因为获得了板状晶体。它们的晶体结构显然彼此相似,其中1个分子在其分子长轴的平行方向上被二聚,并且二聚体通过交替改变分子长轴的方向堆叠以形成一维柱。抗衡离子介于1列堆叠的柱子之间,并以Z字形排列。1 2 ·FeBr 4和1 2 ·GaBr 4的室温电导率相当高(10-15 S cm -1),但是1 2 ·FeCl 4的室温电导率却很小(0.8 S cm -1)。。对于所有CT盐,尽管活化能非常小(30–90 meV),但