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Published March 3, 1983 | public
Book Section - Chapter

Oxidation-Reduction Photochemistry of Polynuclear Complexes in Solution

Abstract

Three classes of polynuclear complexes containing metal-metal bonds possess emissive excited states that undergo oxidation-reduction reactions in solution: the prototypes are Re_2Cl^(2-)_8(d^4·d^4), Pt_2(P_2O_5H_2)^(4-)_4 (d^8·d^8), and Mo_6Cl^(2-)_(14)(d^4)6. Two-electron oxidations of Re_2Cl^(2-)_8 and Pt_2(P_2O_5H_2)^(4-)_4 have been achieved by one-electron acceptor quenching of the excited complexes in the presence of Cl^-, followed by one-electron oxidation of the Cl^--trapped mixed-valence species. Two-electron photochemical oxidation-reduction reactions also could occur by excited-state atom transfer pathways, and some encouraging preliminary observations along those lines are reported.

Additional Information

© 1983 American Chemical Society. Received September 24, 1982. Published in print 3 March 1983. D. MacKenzie assisted with the (Bu_4N)_2M_6X_(14) emission lifetime measurements. Research at the California Institute of Technology was supported by National Science Foundation Grants CHE78-10530 and CHE81-20419. This is Contribution No. 6703 from the Arthur Amos Noyes Laboratory.

Additional details

Created:
August 19, 2023
Modified:
January 14, 2024