About this Chemistry article
A kinetic and mechanistic study of the formation of sulfinato iridium(III) complexes by oxidative addition reactions by M. Kubota; C.J. Curtis; T.G. Chappell is a Chemistry article available to read on EtoBox.
## The kinetics of oxidative addition of sulfonyl chloride (RSO,CI) to trans.-Ir(CO)XL, is given by the second order rate law: rate = kz [Ir(CO)XL2] [RS02-Cl]. The rates increase with increasing basicity of ligands L and X in the order Cl < Br <I and P(OPh)3 < PPh3 < P(p-CH&H& < P(CHJPhz. The dependence of the rate on R in RSOzCl is p-CICJIe < C&ls < p-CH&I& < n-&H,. The activation parameters for the reaction of Ir(CO)Cl(PPh,), with PhSOZCl in benzene are AH\* = I6 kcal/mol and AS\* = -14 cal/deg mol. This reaction b not inhibited by radical scavengers galvinoxyl or duroquinone and not promoted by benzoyl peroxide. The mechanistic implications of these results are discussed.
It is typically read by researchers, students, and practitioners in Chemistry.
- Author
- M. Kubota; C.J. Curtis; T.G. Chappell
- Publisher
- Elsevier Science; Elsevier ; Elsevier BV (ISSN 0020-1693)
- Published
- 1978
- Language
- EN
- Field
- Chemistry (Physical Sciences)