四硫富瓦烯衍生物的银(Ⅰ)配位聚合物的合成与表征

Synthesis and Characterization of Silver(Ⅰ) Coordination Polymer of Tetrathiafulvalene Derivatives

在室温下,以丙酮为溶剂,三氟甲基磺酸银与4,5-二甲硫基-1,3-二硫代环戊烯-2-硫酮(C5H6S5)反应得到一个二维配位聚合物[Ag(C5H6S5)].CF3SO3.(CH3)2CO(1).单晶采用惰性溶剂扩散法培养.X-ray单晶衍射分析表明,1属于正交晶系,P212121空间群,晶胞参数:a=0.825 7(5)nm,b=0.972 1(6)nm,c=2.143(1)nm,V=1.720(1)nm3.在1中一个银离子与不同配体的三个硫原子配位,同时一个配体的两个硫原子参与和银离子配位,形成二维阶梯结构,在二维聚合物分子内存在较强的S…S相互作用,聚合物室温电导率为3.95×10-7S.cm-1,属于半导体.经过碘掺杂后化合物的电导率达到6.80×10-7S.cm-1.

The title complex was synthesized by the reaction of AgCF3SO3 with 4, 5-his（methylthio） -1, 3-dithiol-cyclopentene-2-thione in acetone at room temperature. The single crystal of the title complex [ Ag（C5H6S5） ] · CF3SO3· （CH3） 2CO （1） was obtained by solvent diffhsion method. X-ray single crystal diffraction indicated that 1 belongs to orthorhombic system, P212121 space group, unit cell parametees： a =0. 825 7（5） nm, b = 0.972 1（6） nm, c = 2. 143（1） nm, V = 1.720（1） nm^3. In complex 1, one silver ion was coordinated to three sulfur atoms from different ligands, and two sulfur atoms of the same ligand coordinate to three different silver ions. Such coordination results in forming a 2-D ladder structure. Inter-molecular S ... S interactions exist in the complex. Complex 1 displays semiconductive behavior with a σrt value of 3.95 ×10^-7S·cm^-1.The conductivity of the iodinedoped complex forl is 6.80×10^-7S·cm^-1.