previously observed for [Ru(bpy)(btz)2]2+ (bpy = 2,2′-bipyridyl) and generates trans-[Ru(TAP)(btz)(NCMe)2]2+ (5), which has been crystallographically characterized, with the observation of the ligand-loss intermediate trans-[Ru(TAP)(κ2-btz)(κ1-btz)(NCMe)]2+ (4). Complex 2 displays more complicated photochemical behavior with not only preferential photorelease of btz to form cis-[Ru(TAP)2(NCMe)2]2+ (6) but
二
亚胺金属配合物在光动力疗法 (PDT) 和光活化
化学疗法 (
PACT) 应用的发展中具有重要意义。特别是,已知 TAP
配体(1,4,5,8-四氮杂
菲)的复合物会导致 DNA 的光诱导氧化,而基于 TAP 和三唑的复合物也已知会经历与
PACT 相关的光
化学配体释放过程。杂配配合物 [Ru(TAP) n (btz) 3– n ] 2+ (btz = 1,1'-dibenzyl-4,4'-bi-1,2,3-triazolyl, n = 1 ( 1 ), 2 ( 2 )) 已被探索。在
乙腈中照射后,1显示与先前观察到的 [Ru(bpy)(btz) 2 ] 2+ (bpy =
2,2'-联吡啶)类似的光
化学,并生成反式-[Ru(TAP)(btz)(NCMe) 2 ] 2+ ( 5 ),已通过晶体学表征,观察
配体损失中间体反式-[Ru(TAP)(κ 2 -btz)(κ 1 -btz)(NCMe)]