作者:Eastham, Katie、Kennedy, Aaron D. W.、Scottwell, Synøve Ø.、Bramham, Jack E.、Hardman, Samantha、Golovanov, Alexander P.、Scattergood, Paul A.、Crowley, James D.、Elliott, Paul I. P.
DOI:10.1021/acs.inorgchem.4c00251
日期:——
Photochemical ligand release from metal complexes may be exploited in the development of novel photoactivated chemotherapy agents for the treatment of cancer and other diseases. Highly intriguing photochemical behavior is reported for two ruthenium(II) complexes bearing conformationally flexible 1,2,3-triazole-based ligands incorporating a methylene spacer to form 6-membered chelate rings. [Ru(bpy)2(pictz)]2+
金属配合物释放的光化学配体可用于开发用于治疗癌症和其他疾病的新型光活化化疗剂。据报道,两种钌 (II) 配合物具有非常有趣的光化学行为,这些配合物带有构象灵活的 1,2,3-三唑基配体,并结合亚甲基间隔基以形成 6 元螯合环。 [Ru(bpy) 2 (pictz)] 2+ ( 1 ) 和 [Ru(bpy) 2 (btzm)] 2+ ( 2 ) (bpy = 2,2′-联吡啶;pictz = 1-(吡啶基)-4 -苯基-1,2,3-三唑;btzm = 双(4-苯基-1,2,3-三唑-4-基)甲烷) 通过三唑环通过碱性较低的 N2 原子进行螯合并且在乙腈溶液中很容易发生 pictz 和 btzm 配体(分别为 phi = 0.079 和 0.091)的光化学释放,在两种情况下形成cis -[Ru(bpy) 2 (NCMe) 2 ] 2+ ( 3 )。 [Ru(bpy) 2 (κ 1 -pictz