Effect of delocalization and rigidity in the acceptor ligand on MLCT excited-state decay
- Univ. of North Carolina, Chapel Hill, NC (United States)
- Pontificia Universidad Catolica de Chile, Santiago (Chile); and others
In its most simple form, the energy gap law for excited-state nonradiative decay predicts a linear dependence of ln k{sub nr} on the ground- to excited-state energy gap, where k{sub nr} is the rate constant for nonradiative decay. At this level of approximation, the energy gap law has been successfully applied to nonradiative decay in a wide array of MLCT excited states of polypyridyl complexes of Re{sup I}, Ru{sup II}, and Os{sup II}. This relationship also predicts a dependence of k{sub nr} on the structural characteristics of the acceptor ligand. The authors report here a brief survey of the literature which suggests that such effects exist and have their origin in the extent of delocalization of the excited electron in the ligand {pi}* framework and on acceptor ligand rigidity.
- DOE Contract Number:
- FG05-86ER13633
- OSTI ID:
- 379145
- Journal Information:
- Inorganic Chemistry, Journal Name: Inorganic Chemistry Journal Issue: 8 Vol. 35; ISSN 0020-1669; ISSN INOCAJ
- Country of Publication:
- United States
- Language:
- English
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