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在醋酸-醋酸钾缓冲溶液中,一系列基于稀土双系列锗钨酸盐的无机-有机杂化物K2NamH9-m[{Ln(GeW11O39)2}{Cu2(bpy)2(μ-ox)}]·nH2O(bpy=2,2′-联吡啶,ox=C2O42-;Ln=La,Nd,Sm,Eu,Gd;n=19,17,22,20,19;m=4,4,4,9,2)被分离出来.单晶X射线分析表明,化合物1～5是同构的,均具有一维链状结构,由草酸二核铜[Cu2(2,2-bpy)2(μ-ox)]2+配离子桥连稀土双系列多阴离子[Ln(GeW11O39)2]13-构建而成.相邻链之间通过吡啶基团的π-π相互作用,进一步形成三维结构.磁性测试显示这些化合物具有二核铜的反铁磁性相互作用,同时稀土离子对化合物磁性有一定影响.
A series of inorganic-organic hybrid K2NamH9-m [{Ln (GeW11O39) 2} {Cu2 (bpy) 2 (μ-ox)}] based on rare earth dual series germanium tungstate in acetic acid-potassium acetate buffer solution nH2O (bpy = 2,2’-bipyridine, ox = C2O42-; Ln = La, Nd, Sm, Eu, Gd; n = 19,17,22,20,19; m = , 2) were isolated.X-ray single crystal analysis showed that compounds 1 to 5 are isomorphic, have a one-dimensional chain structure, by the oxalate dinuclear copper [Cu2 (2,2-bpy) 2 )] 2+ ion-bridged rare earth double series polyanion [Ln (GeW11O39) 2] 13-, the three-dimensional structure is further formed by the π-π interaction of adjacent pyridine groups. These compounds have the antiferromagnetic interaction of the binuclear copper, while the rare earth ions have some influence on the magnetic properties of the compounds.