Salt-induced Charge Separation in Photoinduced Electron Transfer Reactions. The Effect of Ion Size

Photochemistry and Photobiology

Volumn 68, Issue 4, 1998, Pages 481-486

  Grosso, Viviana N ^a   Previtali, Carlos M ^a   Chesta, Carlos A ^a  

^a DEPARTAMENTO DE QUÍMICA   (Argentina)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 0000777395     PISSN: 00318655     EISSN: None     Source Type: Journal    
DOI: 10.1111/j.1751-1097.1998.tb02503.x     Document Type: Article

References (30)

1. Mattay, J. and M. Vondenhof (1991) Contact and solvent-separated radical ion pairs in organic photochemistry. Top. Curr. Chem. 159, 219-255 and references therein.
2. Kavarnos, G. J. (1993) Fundamentals of Photoinduced Electron Transfer. VCH Publishers, New York.
3. Todd, W. P., J. P. Dinnocenzo, S. Farid, J. L. Goodman and I. R. Gould (1991) Efficient photoinduced generation of radical cations in solvents of medium and low polarity. J. Am. Chem. Soc. 113, 3601-3602 and references therein.
4. Gratzel, M. (1989) Heterogeneous Photochemical Electron Transfer. CRC Press, Boca Katon, FL.
5. Seki, H. (1992) Effects of salts on the quantum yield and the decay of ions produced by photoinduced electron transfer from zinc tetraphenylporphyrin to 1,4-benzoquinone in 4-methylpentan-2-one. J. Chem. Soc. Faraday Trans. 88, 35-39.
6. Thomson, P. A. and J. D. Simon (1992) Electrolyte effects on the energetics and dynamics of intermolecular electron transfer reactions. J. Am. Chem. Soc. 115, 5657-5664.
7. Clark, C. D. and M. Z. Hoffman (1996) Ion-pairing control of excited-state electron transfer reactions. Quenching, charge recombination, and back electron transfer. J. Phys. Chem. 100, 7526-7532.
8. Kitamura, N., S. Imabayashi and S. Tazuke (1983) Exciplex quenching by quaternary ammonium salts in chloroform. Chem. Lett., pp. 455-458.
9. Goodson, B. and G. B. Schuster (1984) Exciplex ionic dissociation in nonpolar solvent induced by multipolar salt complexes. J. Am. Chem. Soc. 106, 7254-7255.
10. Hartley, R. J. and L. R. Faulkner (1985) Quenching and possible coulombic complexation of the pyrene-N,N-dimethylaniline exciplex by tetraalkylammonium salts. J. Am. Chem. Soc. 107, 3436-3442.
11. Chesta, C. A., J. J. Cosa and C. M. Previtali (1987) The effect of added salts on electron transfer reactions involving exciplexes: the N,N-dimethylaniline-photosensitized dechlorination of 4-chlorobiphenyl. J. Photochem. 39, 251-261.
12. Borsarelli, C. D., C. A. Chesta, J. J. Cosa, B. Crystall and D. Phillips (1995) Quenching of an intramolecular naphthalene-triethylamine exciplex by tetrabutylammonium perchlorate. Evidence for the formation of an emissive complex. Chem. Phys. Lett. 232, 103-108.
13. -. J. Chem. Soc. Faraday Trans. 1 83, 1795-1804.
14. -. J. Chem. Soc. Faraday Trans. 1 84, 2209-2214.
15. Montejano, H. A., J. J. Cosa, H. A. Garrera and C. M. Previtali (1995) Solvent effects on the photoinduced electron transfer reaction between excited singlet pyrene and indole. J. Photochem. Photobiol. A Chem. 86, 115-120.
16. Shida, T. (1988) Electronic Absorption Spectra of Radical Ion. Elsevier, Amsterdam.
17. Weller, A., H. Staerk and H. Schomurg (1987) Triplet states in photoinduced electron transfer reactions. Acta Phys. Pol. 71, 707-716.
18. Zanini, G. P., H. A. Montejano and C. M. Previtali (1995) Photoinduced electron transfer quenching of excited singlet states polycyclic aromatic hydrocarbons by organic acceptors. J. Chem. Soc. Faraday Trans. 91, 1197-1202.
19. Hirata, Y., Y. Kanda and N. Malaga (1983) Picosecond laser photolysis and transient photocurrent studies of the ionic dissociation mechanism of heteroeximers: pyrene-N,N-dimethylaniline and pyrene-p-dicyanobenzene systems in polar solvents. J. Phys. Chem. 87, 1659-1662.
20. Beens, H. and A. Weller (1968) Triple complex formation in the excited state. Chem. Phys. Lett. 2, 140-141.
21. Covintong, A. and T. Dickinson (1973) Physical Chemistry of Organic Solvents Systems. Plenum Press, New York.
22. Sigvartsen, T., B. Gestblom, E. Noreland and J. Songstad (1989) Conductometric and dielectric behaviour of solutions of tetrabutylammonium perchlorate in solvents of low and medium permittivity. Acta Chem. Scand. 43, 103-115.
23. Birks, J. (1970) Photophysics of Aromatic Molecules. Wiley-Interscience, London.
24. Loupy, A., B. Tchoubar and D. Astruc (1992) Salt effects resulting from exchange between two ion pairs and their crucial role in reaction pathways. Chem. Rev. 92, 1141-1165.
25. Billing, R., D. Rehorek and H. Hennig (1990) Photoinduced electron transfer in ion pairs. Top. Curr. Chem. 158, 151-199.
26. Okada, T., I. Karaki and N. Mataga (1982) Picosecond laser photolysis studies of hydrogen atom transfer reaction via heteroexcimer slate I pyrene-primary and pyrene-secondary aromatic amine systems: role of hydrogen-bonding, interaction between amino group of donor and π electrons of acceptor in the heteroexcimer. J. Am. Chem. Soc. 104, 7191-7195.
27. Pearson, R. G. (1990) Hard and soft acids and bases - the evolution of a chemical concept. Coord. Chem. Rev. 100, 403-425.
28. Parr, R. G. and R. G. Pearson (1983) Absolute hardness: companion parameter to absolute electronegativity. J. Am. Chem. Soc. 105, 7512-7516.
29. Douglas, J. and P. Kollman (1981) An analysis of the hard-soft Lewis acid-base concept and the Drago equation employing ab initio molecular orbital theory. J. Phys. Chem. 85, 2717-2722.
30. Komorowski, L. (1987) Electronegativity and hardness in the chemical approximation. Chem. Phys. 114, 55-71.