The Proton Transfer Reaction in the Binary Cluster of Ammonia and Methanol

The binary cluster of ammonia and methanol was studied using both laser MPI MS and the molecular beam technologies. Two serials of protonated cluster ions were measured：（CH3OH）n H+ and（CH3OH）n NH4+（1≤n≤14），which were produced from the proton transfer reactions in the binary clusters . The binary cluster of NH3 and CH3OD was also studied in the current work. The results showedthat the transfer probability of the D in OD was several times larger than that of the H in CH3 . The calculation of binary cluster of CH3OH - NH3 with HF / STO - 3G and MP2 / 6 - 31G** basis sets，showed that the proton in OH was easier to transfer than that in CH3，as there was a barrier about 120kJ / mol for the proton in CH3 to transfer.