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Science 5 November 1971:
Vol. 174. no. 4009, pp. 587 - 589
DOI: 10.1126/science.174.4009.587
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Articles

Oxygen-Carrying Iridium Complexes: Kinetics, Mechanism, and Thermodynamics

L. Vaska 1, Loomis S. Chen 1, and C. V. Senoff 1

1 Department of Chemistry, Clarkson College of Technology, Potsdam, New York 13676

The rates of oxygenation and deoxygenation of a series of iridium complexes increase and decrease, respectively, with increasing electron-releasing tendency of the anionic ligands (A) attached to the metal atom in the oxygencarrying compounds, [IrA(CO)(Ph3P)2]. Calculated heats of oxygenation (—DgrH20), related to Ir-O2 bond energies, are proportional to the previously reported O-O bond lengths in the oxygen adducts, [O2IrA(CO)(Ph3P)2].

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Science. ISSN 0036-8075 (print), 1095-9203 (online)