脯氨酸分子与单价金属阳离子Li+、Na+和K+相互作用的理论研究
摘 要
各种离子在生活的方方面面扮演着十分重要的角色，对离子的识别与医学、生命科学、以及环境科学等诸多领域有着密不可分的联系。通过合理选取有机配体与常见离子构筑具有预期结构和优异性能的配位聚合物，并探索其合成、结构、相关性能的规律，对于材料科学和超分子化学的发展具有重要意义。
本论文合成了N，N‘-（（4-chlorphenyl）methylene）dipicolinamide因其体系中含有共扼大π键，是过渡金属配位聚合物较理想的配位体，通过紫外-荧光光谱研究了其与Cu2+, Pb2+, Co2+, Cd2+, Ni2+, Mn2+, Ba2+, Zn2+等单价金属阳离子的识别性能，结果表明该类受体分子与金属铜离子易形成配合比为1：2的配合物，其稳定常数K=1.05×106,从而实现对单价金属阳离子的识别及检测。
关键词
单价金属阳离子识别；紫外光谱分析；荧光分析
Abstract
Ion plays an important role in all aspects of life. Ion recognition is very much involved with medical science，life science and environmental science. Synthetizing coordination polymers which has expected structure and excellent performance by properly selecting organic ligand and common ion and exploring the rule of its synthesis, structure, related performance have great significance in the development of material science and supermolecular chemistry. Because N,N-(4-chlorpheny)methylene）dipiconamide has conjugate extended Ⅱ band，it is an ideal ligand to synthesize transition-metal coordination polymers.The metal was identifed and detected by the ultraviolet fluorescence means of studying the recognition performance between N,N-(4-chlorpheny)methylene）dipiconamide and Cu2+, Pb2+, Co2+, Cd2+, Ni2+, Mn2+, Ba2+, Zn2+.The result shows that this kind of recepter can coordinated with Cu2+ under1:2,the stability constant K=1.05×106.
Key words
ion recognition；ultraviolet spectrum analysis；fluorescence analysis
