二维层状结构十钒酸盐[K(H_2O)_2Ni(H_2O)_6]_2[V_(10)O_(28)]的合成及性质(英文)  

Synthesis and Characterization of 2D Layered Structure Decavanadate [K(H_2O)_2Ni(H_2O)_6]_2[V_(10)O_(28)]

作　　者：李德慧[1] 刘术侠[1] 彭军[1] 邵奎战[1] 许洪彬[1] 翟宏菊[1] 王恩波[1] 

机构地区：[1]东北师范大学化学系多酸研究所,长春130024

出　　处：《无机化学学报》2004年第9期1076-1080,共5页Chinese Journal of Inorganic Chemistry

基　　金：国家自然科学基金资助项目(No.20071008)。

摘　　要：A novel heteropoly compound, containing two kinds of coordinated cations, [K(H2O)2Ni(H2O)6]2, has been synthesized through routine process and characterized by elemental analyses, IR, 51V NMR and single crystal X-ray diffraction. It crystallizes in the triclinic system, space group P1 with a=0.873 82(17) nm, b=1.075 4(2) nm, c=1.111 1(2) nm, α=65.10(3)°, β=75.01(3)°, γ=70.63(3)°, V=0.884 8(3) nm3 and Z=1. The X-ray analysis reveals that the two kinds of coordinated cations are linked by three shared coordinated water molecules, and K+ cations coordinate with ten oxygen atoms: five of which come from V10O286- anion, the other five from water molecules. The title compound exhibits extended 2D array building up of V10O286- groups connected by ten-coordinated K+ cations. The hexahydrated nickel cations Ni(H2O)62+ lie in neat apposition to three adjacent V10O286- clusters. CSD: 413271.A novel heteropoly compound, containing two kinds of coordinated cations, [K(H2O)(2)Ni(H2O)(6)](2)[V10O28], has been synthesized through routine process and characterized by elemental analyses, IR, V-51 NMR and single crystal X-ray diffraction. It crystallizes in the triclinic system, space group P1 with a=0.873 82(17) nm, b=1.075 4(2) nm, c=1.111 1(2) nm, alpha=65.10(3)degrees, beta=75.01(3)degrees, gamma=70.63(3)degrees, V=0.8848(3) nm(3) and Z=1. The X-ray analysis reveals that the two kinds of coordinated cations are linked by three shared coordinated water molecules, and K+ cations coordinate with ten oxygen atoms: five of which come from V10O286- anion, the other five from water molecules. The title compound exhibits extended 2D array building up of V10O286- groups connected by ten-coordinated K+ cations. The hexahydrated nickel cations Ni(H2O)(6)(2+) lie in neat apposition to three adjacent V10O286- clusters.

关 键 词：二维层状结构 十钒酸盐 合成 X-射线 晶体结构 钾 镍 

分 类 号：O614.113[理学—无机化学] O614.813[理学—化学]