作者:Tariq Sainuddin、Mitch Pinto、Huimin Yin、Marc Hetu、Julie Colpitts、Sherri A. McFarland
DOI:10.1016/j.jinorgbio.2016.01.009
日期:2016.5
46.3 s for [Ru(6,6′-dmb)2(IP–1T)]2 +. Photo-triggered ligand loss slowed with increasing n, and was slowest for [Ru(6,6′-dmb)2(IP–3T)]2 + (t1/2 = 273 s). This trend also held for photoadduct formation with DNA; [Ru(6,6′-dmb)2(IP–1T)]2 + produced relaxed circular DNA at the lowest concentrations. Singlet oxygen yields (ΦΔ) increased with n, whereby ΦΔ for [Ru(6,6′-dmb)2(IP–1T)]2 + was only 3%, but increased
制备了三种应变的Ru(II)金属-有机二元体,并通过NMR,质谱和分析HPLC进行了表征,以探查这些构建体是否可以充当多功能光化学疗法(PCT)剂。这些化合物掺入了拥挤的6,6'-二甲基-2,2'-联吡啶(6,6'-dmb)配体以赋予化学计量的光顺铂活性,以及咪唑并[4,5- f ] [1,10]菲咯啉(IP )后附加n个噻吩单元(n T;n = 1-3),以增加单线态氧敏化的能力。借助可见光激活,该系列的每个复合物在不到10分钟的时间内即可快速选择性地进行6,6'-dmb的光喷射,[Ru(6,6,6)的半衰期(t 1/2)短至46.3 s '-dmb)2(IP-1T)] 2 +。光触发的配体损失随n的增加而减慢,对于[Ru(6,6'-dmb)2(IP-3T)] 2 +(t 1/2 = 273 s)最慢。这种趋势也与DNA形成光加合物有关。[Ru(6,6'-dmb)2(IP-1T)]