论文部分内容阅读
合成了四种以Nsp2 和Nsp3为配位原子的取代不对称多齿氮杂大环化合物 ,制备了它们与不同金属离子的配合物 ,通过元素分析和光谱表征 ,研究了配体的结构与其配位性能的关系 .以吡啶环为侧链功能基的配体L1和L2可根据其环大小选择性地识别Na+或K+离子 ,与过渡金属离子形成 1∶1型配合物 ,而与Hg2 +,Cd2 +等离子则形成1∶2型配合物 .大环配体L3与Co2 +和Na+离子形成的双核配合物中两个冠醚环和一个Na+离子形成夹心配位结构 .L5环中有两个配位中心 ,因而可同时与两个Ru2 +离子配位 .L1和L2 均表现出对不同金属离子良好的液膜传输性能和传输选择性
Four substituted asymmetric multidentate aza-macrocycles with Nsp2 and Nsp3 as coordination atoms were synthesized and their complexes with different metal ions were prepared. The structure and distribution of the ligands were studied by elemental analysis and spectral analysis The ligands L1 and L2, which are functional groups based on the pyridine ring, can selectively recognize Na + or K + ions according to their ring sizes and form a 1: 1 type complex with transition metal ions, while the complexes with Hg2 + Cd2 + ions form a 1: 2 type complex.The two crown ether rings formed by the macrocyclic ligand L3 with Co2 + and Na + ions form a sandwich coordination structure with one Na + ion, and two of the L5 rings Coordination center, which can be simultaneously with the two Ru2 + ions .L1 and L2 showed good performance for different metal ions in the liquid film transport and transport selectivity