Abstract
We have measured the bimolecular rate constants for quenching of the excited singlet and triplet states of the free-base and zinc forms of tetraphenylporphine (TPP) by three quinones with greatly different reduction potentials in several solvents spanning a range of dielectric constant and viscosity. Where available, we have made comparisons with unimolecular rate data for some analogous linked systems. Our data indicate that the orientation of the donor and acceptor not only effects the rates of excited-state quenching, but can also determine whether such interactions result in net electron transfer. In bimolecular interactions, the geometry between the donor and acceptor is not restricted, and fluorescence quenching can be efficient even when net electron transfer is energetically unfavorable. However, in linked systems, when the geometries of the two π-ring systems are restricted, no fluorescence quenching is observed unless the energy requirements for net electron transfer are met. The rates of both inter- and intramolecular quenching of excited singlet states correlate with the energetics for electron transfer, but other mechanisms appear to be involved in intermolecular quenching of the triplet state of free-base TPP.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
For a recent, comprehensive review see: Connolly, J.S.; Bolton, J.R. in Photoinduced Electron Transfer (Fox, M.A.; Chanon, M., eds.), Elsevier Science Publishers, Amsterdam, 1987 (to be published).
Connolly, J.S. in Photochemical Conversion and Storage of Solar Energy, 1982, (Rabani, J., ed.) Part A, Weizmann Science Press of Israel, Jerusalem, 1982, pp 175–204.
Connolly, J.S.; Turner, J.A in Photochemical Conversions, (Braun, A.M., ed.) Presses Polytechniques Romandes, Lausanne, Switzerland, 1983, pp 73–130, and references cited.
Seely, G.R. Photochem. Photobiol. 27, 639–654 (1978).
Creed, D.; Caldwell, R.A. Photochem. Photobiol. 41, 715–739 (1985), and references cited.
Harriman, A.; Porter, G.; Wilowska, A. J. Chem. Soc. Faraday Trans. 279, 807–816 (1983).
Gouterman, M.; Holten, D. Photochem. Photobiol. 25, 85–92 (1977).
Holten, D. Ph.D. Thesis, University of Washington, Seattle, 1976.
Holten, D. Gouterman, M., Parson, W.W.; Windsor, M.W.; Rockley, M.G. Photochem. Photobiol. 23, 415–423 (1976).
Fendler, J.H. J. Phys. Chem. 89, 2730–2740 (1985), and references cited.
Hurst, J.K.; Thompson, D.H.P; Connolly, J.S. J. Am. Chem. Soc. 109, 507–515 (1987), and references cited.
Miller, J.R.; Beitz, J. V.; Huddleston, R.K. J. Am. Chem. Soc. 106, 5057–5068 (1984).
Marcus, R.A. J. Chem. Phys. 24, 966–978 (1956).
Marcus, R.A. Ann. Rev. Phys. Chem. 15, 155–196 (1964).
Marcus, R.A.; Sutin, N. Biochim. Biophys. Acta 811, 265–322 (1985).
Newton, M.D.; Sutin, N. Ann. Rev. Phys. Chem. 35, 437–480 (1984).
Wasielewski, M.R.; Niemczyk, M.P.; Svec, W.A.; Pewitt, E.B. J. Am. Chem. Soc. 107, 1080–1082 (1985).
Irvine, M.P.; Harrison, R.J.; Beddard, G.S.; Leighton, P.; Sanders, J.K.M. Chem. Phys. 104, 315–324 (1986).
Miller, J.R.; Calcaterra, L.T.; Closs, G.L. J. Am. Chem. Soc. 106, 3047–3049 (1984).
Deisenhofer, J.; Epp, O.; Miki, K.; Huber, R.; Michel, H. J. Mol. Biol. 180, 385–398 (1984); Nature 318, 618–624 (1985).
Leland, B.A.; Joran, A.D.; Felker, P.M.; Hopfield, J.J.; Zewail, A.H.; Dervan, P.B. J. Phys. Chem. 89, 5571–5573 (1985).
Schenck, C.C.; Blankenship, R.E.; Parson, W.W. Biochim. Biophys. Acta 680, 44–59 (1982).
Den Blanken, H.J.; Hoff, A.J. Biochim. Biophys. Acta 681, 365–374 (1982).
Barboy, N.; Feitleson, J. J. Phys. Chem. 88, 1065–1068 (1984).
Roy, J.K.; Whitten, D.G. J. Am. Chem. Soc. 93, 7093–7094 (1971); ibid. 94, 7162–7164 (1972).
Roy, J.K.; Carroll, F.A.; Whitten, D.G. J. Am. Chem. Soc. 96, 6349–6355 (1974).
Harriman, A.; Porter, G.; Searle, N. J. Chem. Soc. Faraday Trans. II 75, 1515–1521 (1979).
Wilford, J.H.; Archer, M.D.; Bolton, J.R.; Ho, T.-F.; Schmidt, J.A.; Weedon, A.C. J. Phys. Chem. 89, 5395–5398 (1985).
Archer, M.D.; Gadzekpo, V.P.Y, (unpublished results).
Schmidt, J.A.; McIntosh, A.R.; Weedon, A.C.; Bolton, J.R.; Connolly, J.S.; Hurley, J.K.; Wasielewski, M.R. J. Am. Chem. Soc. (submitted).
Schmidt, J.A.; Siemiarczuk, A.; Weedon, A.C.; Bolton, J.R. J. Am. Chem. Soc. 107, 6112–6114 (1985).
Schmidt, J.A. Ph.D. Thesis, The University of Western Ontario, London, Ontario, 1986.
Wasielewski, M.R.; Niemczyk, M.P. J. Am. Chem. Soc. 106, 5043–5045 (1984).
Wasielewski, M.R.; Niemczyk, M.P. ACS Symp. Ser. 321, 154–165 (1986).
Adler, A.D.; Longo, F.R.; Finarelli, J.D.; Goldmacher, J.; Assour, J.; Korsakoff, L. J. Org. Chem. 32, 476 (1967).
In addition to TPP (5,10,15,20-tetraphenylporphine) and TTP (the tolyl analog), other abbreviations are: TTPa [5-(4-carboxyphenyl)-10,15,20-tri(p-tolyl)porphine] and TTPm (the corresponding methyl ester).
Hurley, J.K; Bell, W.L.; Marsh, K.L.; Wasielewski, M.R.; Connolly, J.S. (to be submitted).
Linschitz, H.; Sarkanen, K. J. Am. Chem. Soc. 80, 4826–4832 (1958).
Pekkarinen, L.; Linschitz, H. J. Am. Chem. Soc. 82, 2407–2411 (1960).
Linschitz, H.; Steel, C.; Bell, J.A. J. Phys. Chem. 66, 2574–2576 (1962).
Connolly, J.S., Gorman, D.S.; Seely, G.R. Ann. N.Y. Acad. Sci. 206, 649–669 (1973).
Connolly, J.S.; Janzen, A.F.; Samuel, E.B. Photochem. Photobiol. 36, 559–563 (1982).
Connolly, J.S.; Samuel, E.B., Janzen, A.F. ibid. 36, 565–574 (1982).
Siemiarczuk, A.; McIntosh, A.R.; Ho, T. F.; Stillman, M.J.; Roach, K.J.; Weedon, A.C.; Bolton, J.R.; Connolly, J.S. J. Am. Chem. Soc. 105, 7224–7230 (1983).
Connolly, J.S.; Marsh, K.L.; Cook, D.R.; Bolton, J.R.; McIntosh, A.R.; Siemiarczuk, A.; Ho, T.-F.; Weedon, A.C. Sci. Papers Inst. Phys. and Chem. Res. (Jpn) 78, 118–128 (1984).
Mcintosh, A.R.; Bolton, J.R.; Connolly, J.S.; Marsh, K.L.; Cook, D.R.; Ho, T.-F.; Weedon, A.C. J. Phys. Chem. 90, 5640–5646 (1986).
Connolly, J.S.5 Marsh, K.L.; Cook, D.R.; Bolton, J.R.; McIntosh, A.R.; Weedon, A.C.; Ho, T.-F. (to be submitted).
Gorman, D.S.; Connolly, J.S. Inter. J. Chem. Kinetics V, 977–989 (1973).
McIntosh, A.R.; Siemiarczuk, A.; Bolton, J.R.; Stillman, M.J.; Ho, T.-F.; Weedon, A.C. J. Am. Chem. Soc. 105, 7215–7223 (1983).
Yamada, S.; Sato, T.; Kano, K.; Ogawa, T. Photochem. Photobiol. 37, 257–262 (1983).
Bergkamp, M.A.; Dalton, J.; Netzel, T.L. J. Am. Chem. Soc. 104, 253–259 (1982).
Molecular mechanics calculations30 indicate that the quinone end-group in PEAQ is constrained in terms of the accessible distances between it and the porphyrin. Specifically, the mean edge-to-edge distances between the two moieties calculated for two extreme conformations are 4.4 and 4.9 A, respectively. These calculations address neither the dynamics of torsional motion about the linking bridge nor the most favorable orientation between the two p-ring systems for electron transfer. Both factors may play important roles in determining the rates of electron transfer, in these simple donor-acceptor molecules in fluid solution J.13.14.17.30,32c,33a,35.
Schmidt, J.A.; Liu, J.-Y.; Bolton, J.R.; Gadzekpo, V.; Archer, M.D. (to be submitted).
Connolly, J.S.; Wasielewski, M.R. (unpublished, 1985).
Riddick, J.A.; Bunger, W.B. (eds.) Organic Solvents, Physical Properties and Methods of Purification (3rd ed.) in Techniques of Chemistry (Weissberger, A., ed.), Wiley-Interscience, New York, 1970.
Siders, P.; Cave, R.J.; Marcus, R.A. J. Chem. Phys. 81, 5613–5624 (1984).
Hush, N.S. Coord. Chem. Rev. 64, 135–157 (1985).
Heitele, H.; Michel-Beyerle, M.E. J. Am. Chem. Soc. 107, 8286–8288 (1985).
Gray, H.B. Chem. Soc. Rev. 15, 17–30 (1986).
Ho, P.S.; Sutoris, C.; Liang, N.; Margoliash, E.; Hoffman, B.M. J. Am. Chem. Soc. 107, 1070–1071 (1985).
Isied, S.S. Prog. Inorg. Chem. 32, 443–517 (1984).
Mendon, G.; Miller, J.R.; Simolo, K.; Taylor, K.; Mauk A.G.; English, A.M. ACS Symp. Ser. 307, 150–165 (1986).
Kosower, E.M.; Kanety, H.; Dodluk, H; Striker, G.; Jovin, T; Boni, H.; Huppert, D. J. Phys. Chem. 87, 2479–2484 (1983).
Kosower, E.M.; Huppert, D. Chem. Phys. Lett. 96, 433–435 (1983).
Kosower, EM.; J. Am. Chem. Soc. 107, 1114–1118 (1985).
Sumi, H.; Marcus, R.A. J. Chem. Phys. 84, 4272–4276 (1986).
Muire, M.; Mendon, G. J. Phys. Chem. 90, 2549–2551 (1986).
Onuchic, J.M.; Beratan, D.N.; Hopfield, J.J. J. Phys. Chem. 90, 3707–3721 (1986).
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 1987 D. Reidel Publishing Company
About this chapter
Cite this chapter
Connolly, J.S., Hurley, J.K., Bell, W.L., Marsh, K.L. (1987). Inter- and Intramolecular Quenching of Porphyrin Excited States by Quinones. In: Balzani, V. (eds) Supramolecular Photochemistry. NATO ASI Series, vol 214. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-3979-0_19
Download citation
DOI: https://doi.org/10.1007/978-94-009-3979-0_19
Publisher Name: Springer, Dordrecht
Print ISBN: 978-94-010-8265-5
Online ISBN: 978-94-009-3979-0
eBook Packages: Springer Book Archive