Intramolecular transfer of3MLCT excitation energy in [Ru(bpy)3]2+

✍ Scribed by Hans Riesen; Yue Gao; Elmars Krausz

• Publisher: Elsevier Science
• Year: 1994
• Tongue: English
• Weight: 351 KB
• Volume: 228
• Category: Article
• ISSN: 0009-2614
• DOI: 10.1016/0009-2614(94)00986-4

✦ Synopsis

The rate of 3MLCT excitation energy transfer between the two crystallographically equivalent metal-ligand subunits of [Ru(bpy)3] 2+ in the [Zn(bpy)3] (C104)2 lattice has been directly measured by time-resolved luminescence line-narrowing experiments. At 1.8 K the transfer rate is ~ I X l0 s s -1 in the second-lowest-excited level II. The energy transfer is incoherent as the inhomogeneous width is much larger than the excitation exchange interaction. The measured rate is in accord with the value estimated from hole-burning experiments.