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。