75112-09-3Relevant academic research and scientific papers
Enthalpy changes in oxidative addition reactions of organic iodides with trans-chlorocarbonylbis(trimethylphosphine)iridium(I)
Yoneda, Gerald,Blake, Daniel M.
, p. 67 - 71 (1981)
Titration calorimetric methods have been used to determine enthalpies of the oxidative addition reaction of trans-[IrCl-(CO)(PMe3)2] with I2, HI, CH3I, C2H2I, n-C3H7I, i-C3H7I, C6H5CH2I, CH3C(O)I, and C6H5C(O)I in 1,2-dichloroethane. Heats of solution of selected metal complexes and iodo compounds have been determined. These results were used to calculate ΔH° values for the oxidative addition reactions. Combination of the ΔH° values and heats of formation of the appropriate compounds has made it possible to calculate ΔH° for the β-elimination reaction of an ethyl complex, CO insertion into the Ir-CH3 bond, and the isomerization of an isopropyl to an n-propyl complex. A relative scale of bond energies, D(Ir-R) - D1(Ir-I) has been determined based on the data obtained in this study. The general trend in D(Ir-R) is H > CH3 ≈ I ≈ CH3C(O) > C2H5 > n-C3H7 > i-C3H7 > CH2C6H5.
