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制备了多齿大环配体1,4,7,10-四氮杂环十二烷(L1);1,4,8,11-四(2-羟乙基)-1,4,8,11-四氮杂环十四烷(L2)和无环多齿配体;3-(2-氨基环己氨基)-2-(2-氨基环己氨基甲基)丙酸(L3),4,7,10-十三烷二腈三氢氯化物(L4),2,2′-(1,2-二乙基-双((甲基二氮杂烷基)二乙醇(L5)and 1,1′-(1,2-二乙基-双((2-氨基乙基)二氮杂烷基))-2-二丙醇(L6),并用FTIR,NMR和MS进行了表征,用配有二极管阵列检测器、蠕动泵和pH计的UV-VIS光度仪,经分光光度滴定法测定了它们与Ni髤的配合物的稳定常数。将稳定常数的数据与配体的开链和环状结构特性进行了关联讨论。还讨论了侧基对配合物稳定常数的影响。
Preparation of multidentate macrocyclic ligand 1,4,7,10-tetraazacyclododecane (L1); 1,4,8,11-tetrakis (2-hydroxyethyl) -1,4,8, Tetraazacyclotetradecane (L2) and acyclic polydentate ligands; 3- (2-aminocyclohexylamino) -2- Tridecanedinonitrile trichloride (L4), 2,2 ’- (1,2-diethyl-bis (methyldiazepine) diethanol (L5) and 1 , 1 ’- (1,2-diethyl-bis (2-aminoethyl) diazepinyl)) - 2-dipropanol (L6) was synthesized and characterized by FTIR, NMR and MS using The UV-VIS photometers equipped with a diode array detector, a peristaltic pump, and a pH meter were used to determine the stability constants of their complexes with Ni 经 by spectrophotometric titration.The data of the stability constants were correlated with the open chain and ring Structure-like properties were discussed. The effect of pendant groups on the stability constants of the complexes was also discussed.