Experimental Observation of Excited-State Electron Transfer Quenching Involving Exchange-Coupled Dinuclear FeIII Complexes

Inorganic Chemistry

Volumn 37, Issue 15, 1998, Pages 3658-3659

  Kirby, James P ^a   Weldon, Brandon T ^a   McCusker, James K ^a  

^a UNIVERSITY OF CALIFORNIA   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 0006975774     PISSN: 00201669     EISSN: None     Source Type: Journal    
DOI: 10.1021/ic980561f     Document Type: Article

References (25)

1. See, for example: (a) Research Frontiers in Magnetochemistry; O'Connor, C. J., Ed.; World Scientific Publishing Co. Pte. Ltd.: Singapore, 1993. (b) Kahn, O. Molecular Magnetism; VCH Publishers: New York, 1993.
2. See, for example: (a) Research Frontiers in Magnetochemistry; O'Connor, C. J., Ed.; World Scientific Publishing Co. Pte. Ltd.: Singapore, 1993. (b) Kahn, O. Molecular Magnetism; VCH Publishers: New York, 1993.
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11. For general references on the model chemistry of non-heme iron-oxo proteins, see: (b) Feig, A. L.; Lippard, S. J. Chem. Rev. 1994, 94, 759 and references therein. (c) Que, L.; Ho, R. Y. N. Chem. Rev. 1996, 96, 2607 and references therein.
12. 2.
13. 2. The spectrometer used for time-resolved emission and absorption measurements has been described previously (Damrauer, N. H.; Boussie, T. R.; Devenney, M.; McCusker, J. K. J. Am. Chem. Soc. 1997, 119, 8253). Samples were excited at 458 nm and monitored for emission at 620 nm. Static absorption spectra taken before and after all time-resolved measurements were indistinguishable.
14. The need for added electrolyte when studying charged reactants has been reported by several other groups. See: Bock, C. R.; Connor, J. A.; Gutierrez, A. R.; Meyer, T. J.; Whitten, D. G.; Sullivan, B. P.; Nagel, J. K. J. Am. Chem. Soc. 1979, 101, 4815 and references therein.
15. q already noted.
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19. 2+ revealed transient signals that were pulse width-limited on the nanosecond time scale.
20. This assumes energy transfer proceeds by a Förster mechanism.
21. 0 quoted here is based on Osteryoung square-wave potentiometric measurements carried out on both compounds under identical conditions.
22. Bertrand, P.; Gayda, J.-P. Biochim. Biophys. Acta 1982, 680, 331.
23. Mouesca, J. M.; Chen, J. L.; Noodleman, L.; Bashford, D.; Case, D. A. J. Am. Chem. Soc. 1994, 116, 11898.
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25. Although resonance exchange does not likely play a role in the mixed-valent hyrdoxo-bridged dimer, it has been suggested that it may be an important factor in a mixed-valence oxo-bridged complexes (E. I. Solomon, personal communication).