Humbs, W. and Strasser, J. and Yersin, Hartmut (1997) Lowest excited triplet states in [Ru(bpy)₃]²⁺ and [Rh(bpy)₃]³⁺. A comparative study based on highly resolved spectra. Journal of Luminescence 72-74, pp. 677-678.
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The lowest excited states of [Ru(bpy)₃]²⁺ (bpy: 2,2’-bipyridine) exhibit a very strong involvement of metal 4d orbitals, while the metal character is extremely small in the states of [Rh(bpy)₃J³⁺. This contrasting behavior is clearly displayed in the emission and excitation spectra, when ligands are isotopically marked. It is demonstrated that these states, being of metal-to-ligand charge transfer character (³MLCT) in Ru(II) compounds, are covalentely delocalized over the metal and the different ligands, while the ground and the lowest excited states of Rh(III) compounds being of ³ππ* character are centered on individual ligands.
Keywords: CRh(bpy-hs),(bpy-ds)3-,13+; CRu(bpy-
|Institutions:||Chemistry and Pharmacy > Institut für Physikalische und Theoretische Chemie > Chair of Chemistry III - Physical Chemistry (Light and Matter) > Prof. Dr. Hartmut Yersin|
|Subjects:||500 Science > 540 Chemistry & allied sciences|
|Refereed:||Yes, this version has been refereed|
|Created at the University of Regensburg:||Yes|
|Owner:||Prof. Dr. Hartmut Yersin|
|Deposited On:||14 Feb 2011 12:39|
|Last Modified:||14 Feb 2011 12:39|