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在水热条件下合成了新型超分子化合物(biyyH2)2(H2P2Mo5O23)·H2O,对其进行了红外光谱、拉曼光谱、紫外-可见漫反射光谱、荧光光谱和循环伏安等分析表征,X射线单晶结构分析表明,标题化合物属单斜晶系,P21/c空间群,晶胞参数α=1.679 51(7)nm,b=1.151 93(4)nm,c=1.889 08(8)nm,β=108.335(1)°,V=3.469 2(2)nm3,Z=4,Dc=2.382g/cm3.F(000)=2 408,μ=1.951mm-1,R=0.024 4,Rw=0.0721.标题化合物的杂多阴离子[P2Mo5O23]4-由5个MoO6畸变的八面体和2个PO4畸变四面体通过共顶点或共边组成;5个Mo原子近似处于同一平面,它们和2个P原子组成了一个畸变的五角双锥构型;杂多阴离子与质子化的4,4’-bipy和水分子通过氢键连成无限二维网状结构,形成超分子化合物.
A new type of supramolecular compound (biyyH2) 2 (H2P2Mo5O23) · H2O was synthesized under hydrothermal conditions and characterized by IR spectroscopy, Raman spectroscopy, UV-vis diffuse reflectance spectroscopy, fluorescence spectroscopy and cyclic voltammetry. X The analysis of the single crystal structure shows that the title compound belongs to the monoclinic space group P21 / c with unit cell parameter α = 1.679 51 (7) nm and b = 1.151 93 (4) nm, c = 1. 889 08 (8) nm, β = 108.335 (1) °, V = 3.469 2 (2) nm3, Z = 4 and Dc = 2.382 g / cm3. F (000) = 2 408, μ = 1.951 mm-1, R = 0.024 4, Rw = 0.0721. The heteropolyanion of the title compound [P2Mo5O23] 4- consists of five MoO6-distorted octahedra and two PO4-distorted tetrahedra through a common apex or a common border; the five Mo atoms are approximately in the same plane and they are composed of two P atoms A distorted pentagonal bipyramidal configuration; the heteropolyanion and the protonated 4,4’-bipy and water molecule form an infinite two-dimensional network structure by hydrogen bonding to form a supramolecular compound.