以苯并咪唑和MoO3等为原料合成得到一个含有Mo—N键的新型配合物H2[Hbim]2[(bim)2Mo8O25]·H2O(bim代表苯并眯唑),并通过红外光谱和单晶X-射线衍射等方法确定了其晶体结构.结构分析表明:该晶体属于单斜晶系,P2(1)/n空间群.晶胞参数:a=1.3882(14)nm,b=1.3927(14)nm,c=1.594O(16)nm,α=90°,β=107.334(12)°,γ=90°,V=2.942(5)nm^2,Z=2,R1=0.0525.该配合物由苯并咪唑和[Mo8O26]^4-配位形成主体结构,苯并咪唑通过Mo—N键直接与[Mo8O26]^4-相连,周围质子化的苯并咪唑阳离子和游离的H^+作为反荷离子平衡电荷.
A new compound, H2[Hbim]2[(bim)2Mo8O26]·H2O (bim= benzimidazole), was synthesized by benzimidazole, MoO3, et al. and characterized by IR spectrum and single-crystal X-ray diffraction. The compound crystallizes as a monoclinic system, having space group: P2(1)/n, unit cell with a=1. 388 2(14)nm, b=1. 392 7(14) nm, c =1. 594 0(16) nm,α= 90°, β=107.334(12)°, γ=90°, V=2.942(5) nm^3, Z=2, R1=0.052 5. The compound has the [Mo8O26]^4- cluster as the structural motif and covalently linked with benzimidazole molecules by Mo--N bond. The protonated benzimidazole cations and H^+ cations play a role of charge-balance.