Effect of Delocalization and Rigidity in the Acceptor Ligand on MLCT Excited-State Decay
- 1 January 1996
- journal article
- research article
- Published by American Chemical Society (ACS) in Inorganic Chemistry
- Vol. 35 (8) , 2242-2246
- https://doi.org/10.1021/ic950961s
Abstract
In its most simple form, the energy gap law for excited-state nonradiative decay predicts a linear dependence of ln knr on the ground- to excited-state energy gap, where knr 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 ReI, RuII, and OsII. This relationship also predicts a dependence of knr on the structural characteristics of the acceptor ligand. We 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 π* framework and on acceptor ligand rigidity.Keywords
This publication has 130 references indexed in Scilit:
- Photosensitization of Colloidal SnO2 by Ruthenium(II) Polypyridine Dissolved in a Supported Surfactant BilayerThe Journal of Physical Chemistry, 1994
- Intrastrand electron and energy transfer between polypyridyl complexes on a soluble polymerJournal of the American Chemical Society, 1993
- Intramolecular electron transfer in rigid media at room temperatureJournal of the American Chemical Society, 1992
- Photoinduced electron transfer in redox-active lysinesJournal of the American Chemical Society, 1991
- Energy- and electron-transfer shuttling by a soluble, bifunctional redox polymerThe Journal of Physical Chemistry, 1991
- Production and storage of multiple, photochemical redox equivalents on a soluble polymerJournal of the American Chemical Society, 1990
- Long-range energy transfer in a soluble polymer by an energy-transfer cascadeJournal of the American Chemical Society, 1989
- Ruthenium and osmium complexes of 2,2′ : 6′,2″-terpyridine covalently linked to electron acceptor and electron donor groupsJournal of the Chemical Society, Chemical Communications, 1989
- Electron and energy shuttling between redox sites on soluble polymersJournal of the American Chemical Society, 1987
- Synthetic and mechanistic investigations of the reductive electrochemical polymerization of vinyl-containing complexes of iron(II), ruthenium(II), and osmium(II)Inorganic Chemistry, 1983