No abstract

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)(Ph(3)P)(2)]. Calculated heats of oxygenation (-DeltaH(2)(0)), related to Ir-O(2) bond energies, are proportional to the previously reported O-O bond lengths in the oxygen adducts, [O(2)IrA(CO)(Ph(3)P)(2)].

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The lines in the Figure have been arbitrarily drawn through the three points representing structurally similar complexes; the points for L = Ph3As and P h E t P have been omitted for clarity since they fall close to those of (p-CH3C6H,),P.

No abstract