作者:Carmen Lorenzo-Aparicio、Mar Gómez Gallego、Carmen Ramírez de Arellano、Miguel A. Sierra
DOI:10.1039/d1dt04148g
日期:——
We report the preparation and the study of new types of neutral and cationic phosphorescent heteroleptic Ir(III) complexes derived from 6-phenylpurine nucleosides and nucleotides. Neutral complexes of general formula Ir(C^N)2(acac) 7, and 8a–c (HC^N = 9-substituted-6-phenyl purine) are orange-red emissive upon photoexcitation, with short lifetimes and good quantum yields (0.42–0.65) in both PMMA films
我们报告了衍生自 6-苯基嘌呤核苷和核苷酸的新型中性和阳离子磷光杂配 Ir( III ) 配合物的制备和研究。通式 Ir(C^N) 2 (acac) 7和8a-c (HC^N = 9-取代-6-苯基嘌呤)的中性配合物在光激发下呈橙红色发光,寿命短,量子产率高(0.42–0.65) 在室温下 PMMA 薄膜和 2-MeTHF。反过来,阳离子配合物 [Ir(C^N) 2 (dtb-bpy)][PF 6 ] 9 , 12a和12c (dtb-bpy = 4,4'-di- tert-丁基-2,2'-二吡啶)是黄绿色发射体,具有中等量子产率(0.24-0.32)。