Excited state electronic properties of the [(phen)(OC)3ReI(NC)RuII(bpy)2(CN)]PF6 and [(phen)(OC)3ReI(CN)RuII(bpy)2(CN)]PF6 linkage isomers †
作者:David W. Thompson、Jon R. Schoonover、Thomas J. Meyer、Roberto Argazzi、Carlo Alberto Bignozzi
DOI:10.1039/a905783h
日期:——
spectral fitting and excited state transient absorption spectroscopy of the two hetero-dinuclear [(phen)(OC)3ReI(CN)RuII(bpy)2(CN)]+ and [(phen)(OC)3ReI(NC)RuII(bpy)2(CN)]+ linkage isomers (abbreviated Re–CN–Ru and Re–NC–Ru) have been examined. In both dinuclear species efficient intramolecular Re*→Ru energytransfer occurs, leading to population of emitting dπ(Ru)–π*(bpy), 3MLCT states. The temperature
两种异核[[phen](OC)3 Re I(CN)Ru II(bpy)2(CN)] +和[( phen)(OC)3 Re I(NC)Ru II(bpy)2(CN)] +键联异构体(缩写为Re-CN-Ru和Re-NC-Ru)已被检测。在两个双核物种中,均发生有效的分子内Re *→Ru能量转移,从而导致发射dπ(Ru)–π *(bpy)的种群3MLCT状态。与温度有关的发射数据表明,当“ [[(phen)(OC)3 Re(NC)]”部分与Ru(bpy)2(CN)结合时,MLCT–dd表面交叉的势垒较小。发射单元。这被解释为是由于其增强的从Ru II的键合能力的结果,相对于dd状态,它增加了MLCT的能量。
Bignozzi, Carlo A.; Chiorboli, Claudio; Murtaza, Zakir, Inorganic Chemistry, 1993, vol. 32, # 6, p. 1036 - 1038
作者:Bignozzi, Carlo A.、Chiorboli, Claudio、Murtaza, Zakir、Jones, Wayne E.、Meyer, Thomas J.