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采用水热法合成了一个含苯并咪唑配体和Keggin结构杂多酸阴离子的一维线性超分子配合物(C7H7N2)4(PMo12O40).2H2O.通过红外、差热热重、元素分析、X-射线单晶衍射对其进行了表征.结果表明:配合物的基本结构单元是由Keggin结构杂多酸阴离子[PMo12O40]4-和[C7H7N2]+阳离子及结晶水组成;不同的结构单元之间通过氢键和π-π堆积作用形成超分子结构;配合物属于三斜晶系,P-1空间群,晶胞参数为:a=0.984 05(7)nm,α=70.494(5)°,b=1.135 88(7)nm,β=82.285(5)°,c=1.385 61(10)nm,γ=71.161(6)°,V=1.381 08(16)nm3,Z=1,Rgt(F)=0.063 1,ωRref(F2)=0.139 2.
A one-dimensional linear supramolecular complex (C7H7N2) 4 (PMo12O40) containing 2-hydroxybenzimidazole ligand and Keggin structural heteropolyacid anion was synthesized by hydrothermal method. The effects of XH Ray diffraction. The results show that the basic structural unit of the complex is composed of Keggin structure heteropolyacid anion [PMo12O40] 4- and [C7H7N2] + cation and crystal water; between the different structural units The supramolecular structure was formed by hydrogen bonding and π-π stacking. The complex belongs to the triclinic system with P-1 space group. The unit cell parameters are a = 0.984 05 (7) nm and α = 70.494 (5) b = 1.135 88 (7) nm, β = 82.285 (5) °, c = 1.385 61 (10) nm, γ = 71.161 (6) °, V = 1.381 08 ) = 0.063 1, ωRref (F2) = 0.139 2.