Oxidative addition of aryl–halogen bonds to platinum(II) and the structure of a complex formed by aryl–fluoride oxidative addition

Abstract

The complexes [PtMe2(Me2NCH2CH2NCHAr)] react by oxidative addition of the aryl–halogen bond when Ar = 2-BrC6H4, 2-CIC6H4, or C6F5 but by ortho-metallation when Ar = 2-FC6H4 or C6H5, and in the case where Ar = C6F5, the oxidative addition product adds acetone across the imine bond and the complex formed has been characterized crystallographically as a hydrogen-bonded dimer; the reactivity to oxidative addition can be correlated with the C–X bond energy.