基于柔性氮配体和叠氮根构筑的两个配合物的合成、结构和磁性研究

Synthesis,Structures and Magnetic Properties of two Coordination Polymers Based on Flexible N-ligands and the Azide-containing Complexes

以三(2-吡啶甲基)胺(L1)与四(4-甲氧基吡啶)-甲烷(L2)为配体,与不同金属盐反应制备得到两种金属有机配合物,即[Ni(L1)(N3)2]和[Co(L2)(N3)2]n。通过元素分析、红外光谱表征及X射线单晶衍射法测定其结构。配合物1为单核单元;配合物2为三维空间构型。进一步对其进行磁学性质测试,结果表明1呈现顺磁性,2呈现反铁性。整体研究结果表明,配体的空间构型及连接方式对最终含叠氮根配合物的结构及磁性有着较大的决定作用。

Two coordination polymers [Ni（ L1）（ N3）2]and[Co（ L2）（ N3）2]n,based on L1 and L2 have been synthesized and characterized by elemental analysis,IR spectra and the crystal structure was determined by single crystal X-ray diffraction. 1 exhibits oligo-nuclear structure; 2 presents the 3D dimensional structure. Magnetic measurements revealed that 1 presented para-magnetism and 2 exhibited anti-ferromagnetism. In conclusion,the conformation and connection modes play an important role in resulting the special structure and magnetism of azide-containing complexes.