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以1,3-二硫杂环戊烯-4,5-二硫醇-2-硫酮(dmit)和5,7,7,12,14,14-六甲基-1,4,8,11-四氮杂环十四-1,8-二烯(hmtade)或5,5,7,12,12,14-六甲基-1,4,8,11-四氮杂环十四烷(hmta)为配体合成了4个双金属的离子对配合物[NiL][M(dmit)2](L=hmtade,M=Ni(1);L=hmta,M=Ni(2);L=hmtade,M=Hg(3);L=hmta,M=Hg(4))。用元素分析、红外光谱、核磁共振氢谱、紫外-可见光谱、热重分析和循环伏安法等对它们进行了表征。研究结果表明,大环配体hmta、hmtade和配体dmit之间形成了N-H…S氢键,配阳离子均为五配位,配阴离子[M(dmit)2]2-的S对配阳离子的Ni(II)进行了配位。离子对配合物的稳定性顺序为:2>1>3>4。
1,3-dithiole-4,5-dithiol-2-thione (dmit) and 5,7,7,12,14,14-hexamethyl-1,4,8, 11-tetraazacyclotetra-l, 8-diene (hmtade) or 5,5,7,12,12,14-hexamethyl-1,4,8,11-tetraazacyclotetradecane (hmta) was used to synthesize four bimetallic ion-pair complexes [NiL] [M (dmit) 2] for Ligands (L = hmtade, M = Ni L = hmtade, M = Hg (3); L = hmta, M = Hg (4)). They were characterized by elemental analysis, IR, 1H NMR, UV-Vis, TG and cyclic voltammetry. The results show that there are NH ... S hydrogen bonds between the macrocyclic ligands hmta, hmtade and the ligand dmit, all of which are five-coordinated with the cations of the cation pair [M (dmit) 2] 2- Ni (II) has been coordinated. Ion-pair stability of the order: 2> 1> 3> 4.