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
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
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(乙撑二硫四硫富瓦烯醌-1,3-二硫代甲基化物)2·MX4 (M=Fe, Ga, X=Br; M=Fe, X=C1) 盐的晶体结构及板状晶体的导电性和磁性
DOI：
10.1006/jssc.2002.9688
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发表时间：
2002
影响因子：
5.4
通讯作者：
K. Takahashi
中科院分区：
文献类型：
--
作者：
T. Matsumoto;T. Kominami;K. Ueda;T. Sugimoto;T. Tada;H. Yoshino;K. Murata;M. Shiro;E. Negishi;H. Matsui;N. Toyota;S. Endo;K. Takahashi
在CH 3CN/CS2溶液中，通过一种新的给体分子--亚乙基二硫代四硫富瓦醌-1，3-二硫戊烯甲基化物（1）与FeBr 3、GaBr 3或FeCl 3反应，得到了1与FeBr 4 −、GaBr 4 −或FeCl 4 −抗衡阴离子的电荷转移（CT）盐（12·FeBr 4、12·GaBr 4和12·FeCl 4）片状晶体。它们的晶体结构明显相似，其中1分子在其分子长轴的平行方向上发生二聚化，二聚体随着分子长轴方向的交替改变而堆叠，形成一维柱体。抗衡阴离子介于1-堆叠的柱之间并且以Z字形方式排列。12·FeBr 4和12·GaBr 4的室温电导率相当高（10-15 S cm−1），但12·FeCl 4的电导率很小（0.8 S cm−1）。对于所有的CT盐，电导率的温度依赖性是半导体的，尽管非常小的活化能（30-90毫电子伏）。基于它们的导电和磁性的比较，我们认为FeBr 4 −或FeCl 4 −离子的d自旋对1-堆叠柱中的π导电电子几乎没有影响。
Abstract By the reaction of a new donor molecule, ethylenedithiotetrathiafulvalenoquinone-1,3-dithiolemethide (1) with FeBr3, GaBr3 or FeCl3 in CH3CN/CS2 charge transfer (CT) salts of 1 with counteranions of FeBr4−, GaBr4− or FeCl4− (12·FeBr4, 12·GaBr4 and 12·FeCl4) as plate crystals were obtained. Their crystal structures are apparently similar to each other, in which 1 molecules are dimerized in the parallel direction of their molecular long axes, and the dimers are stacked with changing the direction of the molecular long axes alternately to form a one- dimensional column. The counteranions intervene between the 1-stacked columns and are aligned in a zigzag manner. The 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 that the d spins of FeBr4− or FeCl4− ions exert almost no influence on the π conducting electrons in the 1-stacked column.
影响因子：
15
作者：
Kobayashi, H;Tomita, H;Cassoux, P
通讯作者：
Cassoux, P
DOI：
--
发表时间：
2007
期刊：
日本金属学会誌 71
影响因子：
--
作者：
T.Fujimoto;S.Yasuzuka;K.Yokogawa;T.Hayashi;T.Hiraoka;H.Fujiwara;T.Sugimoto;M.Hedo;Y.Uwatoko;K.Murata;S. Uji
通讯作者：
S. Uji