Activation of Methane by Tungsten Carbide and Nitride Cluster Cations.Gas-phase reactions of tungsten carbide and nitride cluster cations, WC+ (n = 1-5, m ≤ 5) and WN+ (n = 1-6, m ≤ 2), with methane are investigated at near thermal energies.  Furthermore, the multiple collision reactions of the highly reactive tungsten nitride species such as WN+ and W4N+ lead to the formation of WNCH2+ (x = 2, 3), which shows that the dehydrogenation of more than one CH4 molecule occurs.
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