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机构地区:[1]北京建筑工程学院环境与能源工程学院,北京100044
出 处:《化学研究》2008年第4期9-13,共5页Chemical Research
基 金:supported by Funding Project for Academic Human Resources Development in Institutions of Higher Learning Under the Jurisdiction of Beijing Municipality(BJE10016200611);the Research Fund of Beijing University of Civil Engineering and Architecture(100700502)
摘 要:用NiCl2·6H2O,2,2′-联吡啶(bpy),NH4VO3,WO3在443K下通过水热反应法得到了两种多钒酸镍配合物Ni(bpy)(H2O)(V2O6)(1)和[Ni(bpy)2]2(V6O17)(2).单晶X射线衍射结果表明化合物(1)属于正交晶系,空间群为Pca2(1),晶胞参数为a=0.91704(18)nm,b=1.0519(2)nm,c=1.4336(3)nm,V=1.3830(5)nm3,Z=4;化合物(2)属于单斜晶系,空间群为P2(1)/c,晶胞参数为a=1.5467(3)nm,b=1.4740(3)nm,c=1.0457(2)nm,β=91.99(3)°,V=2.3826(8)nm3,Z=4.化合物(1)由2,2′-联吡啶修饰的二维[Ni(V2O6)(H2O)]∞电中性层构成,而化合物(2)则由2,2′-联吡啶修饰的、呈正弦波浪状的[Ni2(V6O17)]∞二维电中性层构成.Hydrothermal reaction of NiCl2 -6H2O, 2, 2'-bipyridine(bpy), NH4VO3 and WO3 at 443 K yields two novel 2-D nickel vanadate compounds, Ni(bpy) ( H2O) (V2O6) (1) and [ Ni(bpy) 2] 2( V6 O17) (2). X-ray single crystal structure determination reveals that compound (1) belongs to orthorhombic crystal system, space group Pca2(1) with cell parameters a =0.917 04(18) nm, b = 1. 051 9(2) nm, c = 1. 433 6(3) nm, V= 1. 383 0(5) nm^3 and Z =4; and compound (2) belongs to monoclinic crystal system, space group P2(1)/c with cell parameters a = 1. 546 7(3) nm, b = 1. 474 0(3) nm, c = 1. 045 7(2) nm, β =91.99(3)°, V = 2. 382 6(8) nm^3 and Z = 4. Compound (1) consists of 2-D neutral [ Ni(V2O6)(H2O) ]∞ layers, modified by organic ligand of bpy, and compound (2) consists of 2-D neutral [ Ni2( V6O17) ]∞ sinusoidal wave-like layers, modified by organic ligand of bpy.
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