Synthesis and crystal structure of a 1D chainlike rare earth coordinated tungstogermenate:[(CH_3)_4N]_(1.50)H_(3.50)[Gd(GeW_(11)O_(39))(H_2O)_2]·2.5H_2O  

作　　者：赵青岚 韩瑞娟 李继利 杜晓迪 王敬平 

机构地区：[1]Institute of Molecular and Crystal Engineering,School of Chemistry and Chemical Engineering,Henan University,Kaifeng 475004,China

出　　处：《Journal of Rare Earths》2009年第2期177-181,共5页稀土学报（英文版）

基　　金：supported by the National Natural Science Foundation of China (20771034,20773035);the Specialized Research Fund for the Doctoral Program of Higher Education (20040475001);Program for New Century Excellent Talents in University of Henan Province (2005KYCX011);the Natural Science Foundation of Henan Province (0611011900)

摘　　要：AID zigzag polyoxometalate [（CH3）4N]1.50H3.50[Gd（GeW11O39）（H2O）2]·2.5H2O （1） was synthesized by reaction of the monova- cant polyanion [α-GeW11O39]^8- with Gd^3＋ ions in aqueous solution and characterized by IR, UV spectra, ICP, and X-ray crystallography. X-ray single-crystal structural analysis indicated that the title compound crystallized in a monoclinic lattice, C2/c space group with α= 2.8201（5）, b=2.2885（3）, c=2.4033（4） nm, β=123.875 （2）°, V=12.878（4） nm3, Z=8, R1=0.0623, wR2=0.1287. The solid-state structure of the title compound displayed an infinite one-dimensional arrangement built up of [α-GeW11O39]^8- polyanions connected by Gd^Ⅲ cations.AID zigzag polyoxometalate [（CH3）4N]1.50H3.50[Gd（GeW11O39）（H2O）2]·2.5H2O （1） was synthesized by reaction of the monova- cant polyanion [α-GeW11O39]^8- with Gd^3＋ ions in aqueous solution and characterized by IR, UV spectra, ICP, and X-ray crystallography. X-ray single-crystal structural analysis indicated that the title compound crystallized in a monoclinic lattice, C2/c space group with α= 2.8201（5）, b=2.2885（3）, c=2.4033（4） nm, β=123.875 （2）°, V=12.878（4） nm3, Z=8, R1=0.0623, wR2=0.1287. The solid-state structure of the title compound displayed an infinite one-dimensional arrangement built up of [α-GeW11O39]^8- polyanions connected by Gd^Ⅲ cations.

关 键 词：synthesis crystal structure tungstogermanate rare earths 

分 类 号：TG146.45[一般工业技术—材料科学与工程]