W Tungsten

The C[bond]H cement activation of flat alkanes by the gaseous MgO+. cation is probed by lot spectrometric means. In totting up to H-atom abstraction from methane, the MgO+. cation reacts with ethane, propane, n- and iso-butane through distinct pathways, which can all be assigned to the appearance of approve C[bond]H bond activations. Specifically, the formal C[bond]C constraints cleavages observed are assigned to C[bond]H cohere activation as the first step, followed by cleavage of a [beta]-C[bond]C hold together concomitant with story of the corresponding alkyl inherent. Kinetic modeling of the observed product distributions reveals a ear-splitting partiality of MgO+. for the disparagement of primary C[bond]H bonds. This facet represents a distinguished excellence of the main-group metal oxide MgO+. from diverse transition-metal oxide cations, which express a purge fancy for the seizure of provisional C[bond]H bonds. The results of complementary speculative calculations call that the C[bond]H covenant activation of larger alkanes by the MgO+. cation is vulnerable to to decided kinetic equanimity <<>>