A new family of Ru(II) polypyridyl complexes containing open-chain crown ether for Mg2+ and Ca2+ probing
作者:Feixiang Cheng、Ning Tang、Xing Yue
DOI:10.1016/j.saa.2008.07.031
日期:2009.1
di-p-tosylate, and tetraethylene glycol di-p-tosylate, respectively, have been synthesized. Reaction of Ru(bpy)(2)Cl(2).2H(2)O with BL(1-6), respectively, afforded six bimetallic complexes [(bpy)(2)RuBL(1-6)Ru(bpy)(2)](4+) as PF(6)(-) salts. Cyclic voltammetry of these complexes is consistent with one Ru(II)-centered oxidation around 1.32V and three ligand-centered reductions. These complexes show metal-to-ligand
六个含有开环冠醚的聚吡啶基桥联配体BL(1-6),其中BL(1-3)是通过4,5-二氮杂芴-9-肼与1,7-双-(4-甲酰基苯基)的缩合形成的-1,4,7-三氧杂庚烷,1,10-双-(4-甲酰基苯基)-1,4,7,10-四氧十六烷和1,13-双-(4-甲酰基苯基)-1,4,7,由9-(4-羟基)苯基亚氨基-4,5-二氮杂芴与二甘醇二对甲苯磺酸酯,三甘醇二对甲苯磺酸酯反应形成的10,13-五氧杂戊酰胺,BL(4-6),分别合成了对苯二甲酸二乙二醇酯和对苯二甲酸四乙二醇酯。Ru(bpy)(2)Cl(2).2H(2)O与BL(1-6)的反应分别提供了六种双金属配合物[(bpy)(2)RuBL(1-6)Ru(bpy) (2)](4+)为PF(6)(-)盐。这些络合物的循环伏安法与1.32V附近的一个以Ru(II)为中心的氧化和三个以配体为中心的还原相一致。这些络合物在413-444 nm处显示出金属到配体的电荷转移吸收,并在570