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采用水热方法合成一种新型钼-氧簇化合物Ni(en)3MoO4,并通过X射线单晶结构分析、红外光谱分析、元素分析、差热热重分析对该化合物进行了表征.结构分析数据表明:该化合物属三方晶系,P-31c空间群,晶胞参数a=0.9226(13)nm,b=0.9226(13)nm,c=0.9959(2)cm,α=90°,β=90°,γ=120°,V=0.7342(2)nm3,Z=2,Dc=1.805mg/m3,μ=2.153mm-1,F(000)=408,R=0 0553,Rw=0.1732;该化合物是分立结构,是由MoO4四面体簇和Ni(en)3八面体簇形成,其中MoO4四面体簇和Ni(en)3八面体簇交替排列,存在较强的氢键作用,结构中分立的手性配合物Ni(en)3的两种对映体构象以MoO4簇为中心对称排布.
A new type of molybdenum-oxygen cluster Ni (en) 3MoO4 was synthesized by hydrothermal method and characterized by X-ray single crystal structure analysis, infrared spectrum analysis, elemental analysis and TG-DTA analysis. Structural analysis data The results show that the compound belongs to the triclinic system P-31c space group. The unit cell parameters a = 0.9226 (13) nm, b = 0.9226 (13) nm, c = 0.9959 ° = γ = 120 °, V = 0.7342 (2) nm3, Z = 2, Dc = 1.805 mg / m3, μ = 2.153 mm -1, F (000) = 408, R = 0 0553, Rw = 0.1732 The compounds are discrete structures and are formed by MoO 4 tetrahedrons and Ni (en) 3 octahedrons. The MoO 4 tetrahedrons and Ni (en) 3 octahedrons are alternately arranged with strong hydrogen bonding and the structures are separated The two enantiomeric conformations of the chiral complex Ni (en) 3 are symmetrical around the MoO4 clusters.