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在水热条件下,六个新颖的三维层-柱状镧-过渡金属配位聚合物,LnCuX(IN)2(Ac)(H2O)(Ln=Tb,X=Br(1);Ln=Er,X=Cl(2)),[LnCuCl(IN)2(Ac)].H2O(Ln=Gd(3);Ln=Eu(4))和[LnCu2Br2(IN)2(Ac)(H2O)].nH2O(Ln=Dy,n=0(5);Ln=Gd,n=0.5(6))(IN=isonicotinate,Ac=acetate),被成功合成出来.这些化合物是通过镧-有机层和多变的铜-配合物柱连接而成.化合物1和2是同构的,其结构是由二维Ln-IN-Ac层和CuX(IN)2柱(X=Br(1),X=Cl(2))构建的;化合物3和4是同形的,其结构是由二维Ln-IN-Ac层和二聚Cu2Cl(IN)4柱连接而成;而化合物5和6也是同构的,其结构是基于二维Ln-IN-Ac层和四聚Cu4Br4(IN)4柱构建的.磁化率研究结果表明:化合物3和6中的Ln3+离子间存在着弱的反铁磁交换作用.化合物1～6体现了基于二维Ln-有机层与多变铜-配合物柱为建筑单元构建三维Ln-TM-有机框架的代表性例子.
Under the hydrothermal conditions, six new three-dimensional layer-lanthanum-transition metal coordination polymers, LnCuX (IN) 2 (Ac) (Ln = Gd (3); Ln = Eu (4)) and [LnCu2Br2 (IN) 2 (Ac) (H2O)]. nH2O (n = 0 (5); Ln = Gd, n = 0.5 (6)) were synthesized successfully by means of lanthanum- (1), X = Cl (1), X = Cl (1) and CuX (IN) 2)). Compounds 3 and 4 are isomorphic and their structures are connected by a two-dimensional Ln-IN-Ac layer and a dimeric Cu2Cl (IN) 4 column. Compounds 5 and 6 are also isomorphic, The structure is based on a two-dimensional Ln-IN-Ac layer and a quaternary Cu4Br4 (IN) 4 column.The magnetic susceptibility results show that weak antiferromagnetic exchange exists between Ln3 + ions in compounds 3 and 6. Compound 1 ~ 6 represent a representative example of constructing a three-dimensional Ln-TM-organic framework for architectural elements based on a two-dimensional Ln-organic layer and a variable copper-complex column.