A new family of molecular metals based on bis(ethylenethio)tetrathiafulvalene (BET-TTF) and octahedral counterions
A new family of molecular metals based on bis(ethylenethio)tetrathiafulvalene (BET-TTF) and octahedral counterions
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基于双（亚乙硫基）四硫富瓦烯 (BET-TTF) 和八面体抗衡离子的新分子金属家族
DOI：
10.1021/cm00056a024
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发表时间：
1995
影响因子：
8.6
通讯作者：
E. Canadell
中科院分区：
文献类型：
--
作者：
J. Tarrés;N. Santaló;M. Mas;E. Molins;J. Veciana;C. Rovira;S. Yang;Haeseong Lee;D. Cowan;E. Canadell
P21/o，其中供体沿b晶体轴均匀堆叠，呈人字形图案，晶体堆积与BEDT-TTF相相似。这三种2:1盐在三斜P-1空间群中结晶，是同结构的，是与BEDT-TTF的ß-相非常相似的晶体堆积基序。在盐类（BET-TTF） 2AsF6(4)和（BET-TTF） 2SbFe(5)中观察到由于BET-TTF的外硫位导致的结构紊乱。这些结构的能带电子计算表明盐4和盐5具有准二维电子特征。所有2:1盐在~ 100k下都表现出金属特性，在此范围内观察到向活化电导率的广泛转变。讨论了晶体结构、物理性质和电子结构之间的关系。
P21/o, inwhich donors stack uniformly along the b crystallographic axis in a herringbone pattern with a crystal packing similar to-phases of BEDT-TTF. The three 2: 1 salts crystallize in the triclinic P-1 space group and are isostructural, being the crystal packing motif very similar to the ß-phases of BEDT-TTF. Insalts (BET-TTF) 2AsF6 (4) and (BET-TTF) 2SbFe (5) a structural disorder due to the external sulfur positions of BET-TTF is observed. Band electronic calculations on these structures indicate a quasi-2D electronic character for salts 4 and 5. All 2: 1 salts show metallic characterdown to~ 100 K, where a very broad transition toward an activated conductivity isobserved. The relationships between the crystal structures, physical properties, and electronic structures are discussed.