Anionic Clusters Produced in Low-Energy Electron Irradiation of Methanol Liquid
In the low-energy electron impacts with a liquid beam of methanol,we detect the anionic yields us-ing a linear time-of-flight mass spectrometer.With help of quantum chemistry calculations,we further identify these anionic products as the hydrogen-bonding clusters,i.e.,CH3OH·CH3O-and CH3OH·CH3OH·CH3O-,and their singly occupied molecular orbitals show the valence-bound feature.In contrast,CH3OH·CH3OH-and CH3OH·CH3OH·CH3OH-are unfavored in energetics with respect to the dehydrogenated ones,although they also correspond to the minima on the po-tential energy surfaces.Furthermore,the singly occupied molecular orbitals of CH3OH·CH3OH-and CH3OH·CH3OH·CH3OH-indicate the typical feature of aqueous-sol-vated electron.
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