Three 2D sandwich-like layer heterometallic complexes, formulated as [Ln(idaH)M (ida>2]n·0.5nH2O,(H2ida=iminodiacetic acid, Ln=Nd, M=Co (1); Ln=La, M=Co (2); Ln=La, M=Ni (3)) have been synthesized underhydrothermal reaction condition and characterized by X-ray diffraction single-crystal structure analysis, IRspectroscopy, elemental analysis, TGA analysis, XPS techniques and magnetic analysis. The Ln atoms are ten-coordinated and linked up into chains by carboxylic oxygen atoms, which are engrafted by six-coordinated 3dtransition metal atoms on both sides to give rise to belt-like chains. The belt-like chains are linked up into 2Dnetwork by ida ligands and further extended into 3D open-framework by strong hydrogen-bond interactions.%水热法合成了3个层状异核金属化合物[Ln(idaH)M(ida)2]n·0.5nH2O,(H2ida=亚氨基二乙酸,Ln=Nd,M=Co(1);Ln=La,M=Co(2);Ln=La,M=Ni(3)).进行了晶体结构测定,红外光谱分析、能谱分析与磁性能分析.3个化合物除金属原子不同外具有相同的结构,其晶体都属于单斜晶系,C2/c空间群.单晶结构表明该结构含有由十配位的Ln通过羧基氧连接而成的链,六配位的3d金属(Co、Ni)交替地处在链的两边,形成了带状结构,带状链通过配体连成二维结构,通过氢键形成三维骨架.
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