新型二维杂金属配位聚合物[La(Hida)Co(ida)2]·0.5H2O的水热合成与表征

采用水热法合成出一种新型二维杂金属配位聚合物La(Hida)Co(ida)2].0.5H2O(ida=氨基二乙酸),并通过X射线单晶结构分析、红外光谱分析、元素分析、热重分析以及X射线粉末衍射分析对该化合物进行了表征.结构分析数据表明,该化合物属单斜晶系,C2/c空间群,晶胞参数a=0.97078(19)nm,b=2.4128(5)nm,c=0.85964(17)nm,β=114.91(3),°V=1.8263(6)nm3,Z=4,R=0.0126.该化合物是由一维La-Co杂金属链通过四齿羧酸配体连接形成的新型二维杂金属配位聚合物.

Hydrothermal Synthesis and Characterization of a New Two-dimensional Lanthanum(Ⅲ)-cobalt(Ⅱ) Heterometallic Coordination Polymer La(Hida)Co(ida)2·0.5H2O

A new lanthanum(Ⅲ)-cobalt(Ⅱ) heterometallic polymeric complex of La(Hida)Co(ida)2·0.5H2O(1,ida=iminodiacetate) was hydrothermally synthesized and structurally characterized by the elemental analyses,IR spectrum and the single-crystal X-ray diffraction.The structure of compound 1 consists of one-dimensional lanthanum-cobalt heterometallic chain,which was linked via "linear" tetradentate ida ligands to form the two-dimensional framework.The crystal data for compound 1: monoclinic system,space group(C2/c,) a=0.970 78(19) nm,b=2.412 8(5) nm,c=0.859 64(17) nm,β=114.91(3)°,V=1.826 3(6) nm3,Z=4 and R=0.012 6. Interestingly,the title compound contains ten-coordinate lanthanide(Ⅲ)(ions), which makes it unique as the heteronuclear lanthanide iminoacetate.