Abstract

Electrospray ionization (ESI) has been employed to produce Li +(CH 3OH) m for infrared spectroscopic studies using a vibrational predissociation spectrometer. A gradual blue shift of the CO stretching frequency from 1023 cm −1 to 1027 cm −1 was observed as m increases from 5 to 10, supporting the suggestion for the formation of the second solvation-shell in Li +(CH 3OH) 5, in accord with the prediction by density functional theory calculations performed at the B3LYP/6-311+G**//6-31+G* level. We demonstrate in this work that the ESI source is applicable not only to the infrared study of Li +(CH 3OH) m but also to other alkali metal methanol cluster ions as well.

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