Abstract
Thermal reactions of the closed-shell metal-oxide cluster [TaO3 ](+) with methane were investigated by using FTICR mass spectrometry complemented by high-level quantum chemical calculations. While the generation of methanol and formaldehyde is somewhat expected, [TaO3 ](+) remarkably also has the ability to abstract two hydrogen atoms from methane with the elimination of CH2 . Mechanistically, the generation of CH2 O and CH3 OH occurs on the singlet-ground-state surface, while for the liberation of (3) CH2 , a two-state reactivity scenario prevails.
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