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Photochemistry of Dinuclear d^8-d^8 Iridium and Platinum Complexes

Marshall, Janet L. and Stiegman, Albert E. and Gray, Harry B. (1986) Photochemistry of Dinuclear d^8-d^8 Iridium and Platinum Complexes. In: Excited States and Reactive Intermediates. ACS Symposium Series. No.307. American Chemical Society , Washington, DC, pp. 166-176. ISBN 9780841209718.

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The long-lived (^3B_2 and ^3A_(2u)) excited states of the d8-d8 dimers [Ir(μ-pz)(COD)]_2 and Pt_2(pop)_4^(4-), respectively, undergo a variety of photochemical reactions (pzH is pyrazole; COD is 1,5-cyclooctadiene; pop is P_2O_5H_2^(2-), bridging pyrophosphite). Electron transfer reactions to one-electron acceptors such as pyridinium cations or substituted benzophenones are quite facile with acceptors that have reduction potentials as negative as -2.0 V vs. NHE. With halocarbon acceptors, d^7-d^7 oxidative addition products are obtained. Several organic substrates with relatively weak C-H bonds react with the triplet (dσ^*pσ) excited state of Pt_2(pop)_4^(4-) by H-atom transfer.

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Gray, Harry B.0000-0002-7937-7876
Additional Information:© 1986 American Chemical Society. Received November 8, 1985. Published in print 30 April 1986. J. L. M. thanks the Sun Co. for a graduate fellowship. This research was supported by National Science Foundation Grant CHE84-19828.
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Series Name:ACS Symposium Series
Issue or Number:307
Record Number:CaltechAUTHORS:20180405-071623282
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Official Citation:Photochemistry of Dinuclear d8-d8 Iridium and Platinum Complexes Janet L. Marshall, Albert E. Stiegman, and Harry B. Gray Excited States and Reactive Intermediates. April 30, 1986 , 166-176 DOI:10.1021/bk-1986-0307.ch012
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:85623
Deposited By: Ruth Sustaita
Deposited On:05 Apr 2018 21:06
Last Modified:15 Nov 2021 20:30

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