Cited by 249Photochemistry and Electron Transfer StudiesOrganic Light-Emitting Diodes ResearchSpectroscopy and Quantum Chemical Studies

Effect of delocalization and rigidity in the acceptor ligand on MLCT excited-state decay

Treadway, Joseph A., Loeb, Barbara, Lopez, Rosa, Anderson, Peter A., Keene, F. Richard, Meyer, Thomas J.·1996·Inorganic Chemistry

Abstract

In its most simple form, the energy gap law for excited-state nonradiative decay predicts a linear dependence of ln k(nr) on the ground- to excited-state energy gap, where k(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(I), Ru(II), and Os(II). This relationship also predicts a dependence of k(nr) 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 pi framework and on acceptor ligand rigidity.

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Crossref · 10.1021/ic950961s

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  • The difficulty in constructing NIR emission lies in the rapid internal conversion between low-energy-level S1 and S0, explored in light of the energy-gap law.

    “The difficulty in constructing NIR emission lays in the rapid internal conversion between low-energy-level S1 and S0, which was explored in light of energy-gap law.”

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Authors
Treadway, J. A., Loeb, B., Lopez, R., Anderson, P. A., Keene, F. R., & Meyer, T. J.
Affiliations
  • Pontificia Universidad Católica de Chile (CL)
  • Department of Chemistry, The University of North Carolina, CB#3290, Chapel Hill, North Carolina 27599-3290, Faculty of Chemistry, Pontificia Universidad Catolica de Chile, Casilla 306, Buzon 521, Santiago, Chile, and Department of Molecular Sciences, James Cook University of North Queensland, Townsville, Queensland 4811, Australia
Venue
Inorganic Chemistry
Published
1996-01-01
Volume
35
Issue
8
Pages
2242-2246
ISSN
  • 0020-1669 (ISSN-L)
  • 1520-510X
OpenAlex
W2088407745
Cited by
249
References
137
Citations by year
2026: 4 · 2025: 7 · 2024: 9 · 2023: 4 · 2022: 8 · 2021: 9 · 2020: 11 · 2019: 4 · 2018: 3 · 2017: 7 · 2016: 13 · 2015: 8 · 2014: 7 · 2013: 7 · 2012: 10
FWCI
6.77
Type
journal article
Language
en
Open access
closed
Locations
  • Inorganic Chemistry (publishedVersion)
  • PubMed (publishedVersion)
  • ResearchOnline - JCU (James Cook University) (submittedVersion)
Topics
  • Physical Sciences › Chemistry › Physical and Theoretical Chemistry › Photochemistry and Electron Transfer Studies
  • Physical Sciences › Engineering › Electrical and Electronic Engineering › Organic Light-Emitting Diodes Research
  • Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Spectroscopy and Quantum Chemical Studies
Keywords
MLCT excited states, nonradiative decay, energy gap law, polypyridyl complexes, metal-to-ligand charge transfer, excited-state decay kinetics, ruthenium(II) complexes, osmium(II) complexes, rhenium(I) complexes

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