Studies on a dioxotetraamine macrocyclic ligand, its copper(II) and nickel(II) complexes and solution equilibria
作者:Qin-Hui Luo、Shou-Rong Zhu、Meng-Chang Shen、Shu-Yan Yu、Zheng Zhang、Xiao-Yun Huang、Qiang-Jin Wu
DOI:10.1039/dt9940001873
日期:——
10-tetraazacyclotridecane-11,13-dione (L). Its complexes with CuII and NiII, i.e.[MH–2L] and [ML]2+, were synthesised and characterized. Detailed studies have been made on the solution equilibria of L with five transition-metal and three rare-earth-metal ions. The stability of the transition-metal complexes accords with the Irving–William series and that of the rare-earth-metal complexes increases with decreasing metal-ion
2-(4-硝基苄基)丙二酸二乙酯与三亚乙基四胺的反应产生了大环12-(4-硝基苄基)-1,4,7,10-四氮杂环十三烷-11,13-二酮(L)。合成并表征了其与Cu II和Ni II的配合物,即[MH –2 L]和[ML] 2+。已经对L与五个过渡金属离子和三个稀土金属离子的溶液平衡进行了详细研究。过渡金属配合物的稳定性与Irving–William系列一致,而稀土金属配合物的稳定性则随着金属离子半径的减小而增加。[H 2 L] [NO 3 ] 2 ·H 2的晶体结构O已确定。