The photophysical properties of Ru(II) and Re(I) polypyridyl complexes including a bis-bipyridyl pyrene ligand are presented. The complexes ([(bpy)(2)Ru](2)bpb)(4+) and [(CO)(3)ReCl(bpb)] (bpy = 2,2'-bipyridine, bpb = 1,6-bis-(4-(2,2'-bipyrid-yl)-pyrene) were designed with the intent of examining intramolecular energy migration between MLCT states localized on the metal complexes and pyrene-localized
介绍了包括双联
吡啶基py
配体的Ru(II)和Re(I)聚
吡啶基配合物的光物理性质。配合物([[(bpy)(2)Ru](2)bpb)(4+)和[(CO)(3)ReCl(bpb)](bpy =
2,2'-联吡啶,bpb = 1,6-设计双-(4-(
2,2'-联吡啶基)-py)的目的是检查分子复合体上的MLCT状态与pyr局部化的(3)(pi-pi)状态之间的分子内能量迁移。两种含有bpb
配体的配合物的吸收光谱表明,除了MLCT和以pyr为中心的(1)(pi-pi)跃迁之外,两种配合物在400 nm附近均观察到新的吸收带。 (I)配合物强烈暗示the(pi)向bpy(pi)
配体内电荷转移(ILCT)过渡的存在。含有bpb
配体的Ru(II)和Re(I)配合物在室温和77 K下的发射光谱几乎相同。与不含the的配合物([[(bpy)(2)Ru](2)bpb)(4+)和[[CO( 3)ReCl(bpb