Abstract
In this paper we compare the spectral, acid-base, electrochemical, and kinetic properties of the excited states and one-electron reduced forms of homo- and heteroleptic Ru(II)-diimine photosensitizers that contain 2,2’-bipyridine, 2,2’-bipyrazine, and 2,2’-bipyrimidine ligands. These species, represented as *(RuIIIL.-)2+ and (RuIIL.-)+, respectively, are orbital analogues in that the intra- or intermolecularly transferred electron resides on the same uniquely reduced ligand. The variations in the properties of these species, resulting from changes in the coordinating ligands, permit the fine-tuning of photochemical systems.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
H.D. Gafney and A.W. Adamson, J. Amer. Chem. Soc., 94, 8238 (1972).
J.N. Demas and G.A. Crosby, J. Amer. Chem. Soc., 93, 2841 (1971).
See for example: a) A. Juris, V. Balzani, F. Barigelletti, S. Campagna, P. Belser and A. von Zelewsky, Coord. Chem. Rev., 84, 85 (1988); b) K. Kalyanasundaram, Photochemistry of Polypyridine and Porphyrin Complexes, Academic Press, New York, 1992.
a) M.A. Jamison, N. Serpone and M.Z. Hoffman, Coord. Chem. Rev., 39, 121 (1981); b) M.Z. Hoffman and N. Serpone, Irsr. J. Chem., 22, 91 (1982); c) N. Serpone and M.Z. Hoffman, J. Chem. Educ., 60, 853 (1983); d) M.Z. Hoffman, in D. Fassler (Ed.), Optical Spectroscopy in Chemistry and Biology — Progress and Trends, VEB Deutscher Verlag der Wissenschaften, Berlin, DDR, 1989, p 93.
a) M.Z. Hoffman, J. Phys. Chem., 92, 3458 (1988); b) H. Sun, G. Neshvad and M.Z. Hoffman, Molec. Cryst. Liqu. Cryst., 194, 141 (1991); c) T. Ohno, A. Yoshimura, D.R. Prasad and M.Z. Hoffman, J. Phys. Chem., 95, 4723 (1991); d) M. Georgopoulous and M.Z. Hoffman, J. Phys. Chem., 95, 7717 (1991); e) H. Sun and M.Z. Hoffman, J. Am. Chem. Soc., under consideration.
M.Z. Hoffman, in J.J. Zuckerman (Eds.), Inorganic Reactions and Methods, Vol. 15, VCH Publishers, Deerfield Beach, FL, 1986, p 272.
a) D.R. Prasad, D. Hessler, M.Z. Hoffman and N. Serpone, Chem. Phys. Lett., 121, 61 (1985); b) M. Venturi, Q.G. Mulazzani, M. Ciano and M.Z. Hoffman, Inorg. Chem., 25, 4493 (9186); c) Q.G. Mulazzani, M. Venturi and M.Z. Hoffman, Radiat. Phys. Chem., 32, 71 (9188); d) G. Neshvad and M.Z. Hoffman, J. Phys. Chem., 93, 2445 (9189); e) G. Neshvad, M.Z. Hoffman, Q.G. Mulazzani, M. Venturi, M. Ciano and M. D’Angelantonio, J. Phys. Chem., 93, 6080 (1989); f) M. Venturi, Q.G. Mulazzani, M. D’Angelantonio, M. Ciano and M.Z. Hoffman, Radiat. Phys. Chem., 37, 449 (991).
H. Sun and M.Z. Hoffman, J. Phys. Chem., in press.
Q.G. Mulazzani, H. Sun, M.Z. Hoffman, W.E. Ford and M.A.J. Rodgers, J. Phys. Chem., in press.
J.N. Demas and D.G. Taylor, Inorg. Chem., 18, 3177 (1979).
A. Yoshimura, M.Z. Hoffman and H. Sun, J. Photochem. Photobiol. A: Chem., 70, 29 (1993).
U. Lachish, A. Shafferman and G. Stein, J. Chem. Phys., 64, 4205 (1976).
a) S.J. Atherton, J. Phys. Chem., J. Phys. Chem., 88, 2840 (1984); b) D. Meisel, M.S. Matheson, W.A. Mulac and J. Rabani, J. Phys. Chem., 81, 1449 (1977).
M.Z. Hoffman, F. Bolletta, L. Moggi and G.L. Hug, J. Phys. Chem. Ref. Data, 18, 219 (1989).
I. Carmichael and G.L. Hug, J. Phys. Chem. Ref. Data, 15, 1 (1986).
a) Y. Kawanishi, N. Kitamura and S. Tazuke, Inorg. Chem., 28, 2968 (1989); b) R.J. Crutchley, N. Krees and A.B.P. Lever, J. Am. Chem. Soc., 105, 1170 (1983).
a) H.A. Schwarz and R.W. Dodson, J. Phys. Chem., 93, 409 (1989); P.S. Surdhar, S.P. Mezyk and D.A. Armstrong, J. Phys. Chem., 93, 3360 (1989).
M. D’Angelantonio, Q.G. Mulazzani, M. Venturi, M. Ciano and M.Z. Hoffman, J. Phys. Chem., 95, 5121 (1991).
Q.G Mulazzani, S. Emmi, P.G. Fuochi, M. Venturi, M.Z. Hoffman and M.G. Simic, J. Phys. Chem., 83, 1582 (1979).
Q.G. Mulazzani, H. Sun, M.Z. Hoffman and M. Venturi, Abstracts, Miller Conference on Radiation Chemistry, Windemere, England, April 3–8, 1993.
D.R. Prasad and M.Z. Hoffinan, J. Am. Chem. Soc., 108, 2568 (1986).
H. Sun and M.Z. Hoffman, J. Phys. Chem., 97, 5014 (1993).
a) M. Smoluchowski, Z. Phys. Chem., 92, 129 (1917); b) P. Debye, Trans. Electrochem. Soc., 82, 265 (1942).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Sun, H., Hoffman, M.Z. & Mulazzani, Q.G. Properties of excited states and one-electron reduced forms of Ruthenium(II)-diimine photosensitizers. Res Chem Intermed 20, 735–754 (1994). https://doi.org/10.1163/156856794X00522
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1163/156856794X00522