Mapping electron transfer pathways in a chromophore-quencher triad

Journal of Physical Chemistry A

Volumn 101, Issue 37, 1997, Pages 6824-6826

  Treadway, Joseph A ^a   Chen, Pingyun ^a   Rutherford, Todd J ^b   Keene, F Richard ^b   Meyer, Thomas J ^a  

^a University of North Carolina at Chapel Hill   (United States)

^b JAMES COOK UNIVERSITY   (Australia)

Author keywords

[No Author keywords available]

Indexed keywords

ACETONITRILE; CHARGE TRANSFER; CONFORMATIONS; ELECTRON TRANSITIONS; LASER APPLICATIONS; MOLECULAR STRUCTURE; PHOTOLYSIS; REDOX REACTIONS; RUTHENIUM COMPOUNDS;

CHROMOPHORES; LASER FLASH PHOTOLYSIS;

ORGANOMETALLICS;

EID: 0031235978     PISSN: 10895639     EISSN: None     Source Type: Journal    
DOI: 10.1021/jp9716389     Document Type: Article

References (34)

1. Keene, F. R. Coord. Chem. Rev., in press.
2. Opperman, K. A.; Mecklenburg, S. L.; Meyer, T. J. Inorg. Chem. 1994, 33, 5295.
3. Larson, S. L.; Elliott, C. M.; Kelley, D. F. J. Phys. Chem. 1995, 99, 6530.
4. For each positional isomer there is a Δ, Λ enantiomeric pair. Each separate Λ "isomer" illustrated in Figure 1 has a corresponding Δ isomer present in equal amount in the isolated samples.
5. (a) Anderson, P. A.; Deacon, G. B.; Haarmann, K. H.; Keene, F. R.; Meyer, T. J.; Reitsma, D. A.; Skelton, B. W.; Strouse, G. F.; Thomas, N. C.; Treadway, J. A.; White, A. H. Inorg. Chem. 1995, 34, 6145.
6. (b) Strouse, G. F.; Anderson, P. A.; Schoonover, J. R.; Meyer, T. J.; Keene, F. R. Inorg. Chem. 1992, 31, 3004.
7. (c) Anderson, P. A.; Strouse, G. F.; Treadway, J. A.; Keene, F. R.; Meyer, T. J. Inorg. Chem. 1994, 33, 3863.
8. Rutherford, T. J.; Keene, F. R. Inorg. Chem. 1997, 36, 2872.
9. (a) Rutherford, T. J.; Quagliotto, M. G.; Keene, F. R. Inorg. Chem. 1995, 34, 3857.
10. (b) Rutherford, T. J.; Reitsma, D. A.; Keene, F. R. J. Chem. Soc., Dalton Trans. 1994, 3659.
11. Hua, X.; von Zelewsky, A. Inorg. Chem. 1995, 34, 5791.
12. Rutherford, T. J.; Reitsma, D. A.; Keene, F. R. J. Chem. Soc., Dalton Trans. 1994, 3659.
13. There is evidence in the emission decay data for a small contribution (<3%) from an emissive impurity with τ ∼1 μs.
14. (a) Chen, P.; Duesing. R.; Graff, D. K.; Meyer T. J. J. Phys. Chem. 1991, 95, 5850.
15. (b) Duesing, R.; Tapolsky, G.; Meyer, T. J. J. Am. Chem. Soc. 1990, 112, 5378.
16. Hester, R. E.; Williams, K. P. J. J. Chem. Soc., Perkin Trans. 2 1981, 852.
17. Watanabe, T.; Honda, K. J. Phys. Chem. 1982, 86, 2617.
18. 2+ actinometer in water (refs 14b,c). The measurements were made by measuring transient absorption changes at 10 wavelengths between 500 and 640 nm and known extinction coefficients with sufficient PTZ added (38 mM) to achieve >98% quenching.
19. (b) Hoffman, M. Z. J. Phys. Chem. 1988, 92, 3458.
20. (c) Hoffman, M. Z. J. Phys. Chem. 1991, 95, 2606.
21. 2+.
22. (a) Yonemoto, E. H.; Saupe, G. B.; Schmehl, R. H.; Hubig, S. M.; Riley, R. L.; Iverson, B. L.; Mallouk, T. E. J. Am. Chem. Soc. 1994, 116, 4786.
23. (b) Yonemoto, E. H.; Riley, R. L.; Kim, Y. I.; Atherton, S. J.; Schmehl, R. H.; Mallouk, T. E. J. Am. Chem. Soc. 1992, 114, 8081.
24. O,L the solvent reorganizational energy including low-frequency modes treated classically. They were determined by emission spectra fitting techniques described elsewhere (refs 17b,c).
25. (b) Claude, J. P.; Meyer, T. J. J. Phys. Chem. 1995, 99, 51.
26. (c) Kober, E. M.; Caspar, J. V.; Lumpkin. R. S.; Meyer, T. J. J. Phys. Chem. 1986, 90, 3722.
27. ET.
28. (b) Marcus, R. A.; Sutin, N. Biochim. Biophys. Acta 1985, 811, 265.
29. (c) Kowert, B. A.; Marcoux, L.; Bard, A. J. J. Am. Chem. Soc. 1972, 94, 5538.
30. (d) Bock, C. R.; Connor, J. A.; Gutierrez, A. R.; Meyer, T. J.; Whitten, D. G.; Sullivan, B. P.; Nagle, J. K. Chem. Phys. Lett. 1979, 61, 252.
31. z are the lengths of the three molecular axes.
32. (f) Eigen, M. Z. J. Phys. Chem. (Munich) 1954, 1, 176.
33. (g) Fuoss, R. M. J. Am. Chem. Soc. 1958, 80, 5059.
34. 2+ and -PTZ were in close proximity. The distances are quoted as the separations between the geometric centers of the redox pairs.