Analyses by 1 H NMR and GC-MS on the crude reaction solutions showed that the only liquid products derived from methane, if any, were methanol and methylbisulfate (CH 3 OSO 3 H), which is similar to the Catalytica system. 3 The data in Table 1 show that all Pt species (PtCl 2 , PtCl 4 , PtO 2 , K 2 PtCl 4 and H 2 PtCl 6 ) could exhibit significant catalytic activity depending on the nature of the IL used. In the case of PtCl 2 + [1-mim][Cl] in 96% H 2 SO 4 (Table 1, entry 3) ...
