Multiphoton ionization of acetone-water clusters at 355 nm

Abstract

The multiphoton ionization of acetone-water clusters were detected at 355 nm laser wavelength by using the time of flight mass spectrometer (TOF-MS). The experiments show that all products are protonated. Three main products such as (CH₃COCH₃)_n-(H₂O)_n−2H⁺, (CH₃COCH₃)_n-(H₂O)_n−1 H⁺ and (CH₃COCH₃)_n−(H₂O)_nH⁺ are concluded from the results. In order to study the equilibrium structures of the (CH₃COCH₃)_n−(H₂O)_n−2H⁺, the ab-initio calculation is used on them. The experiment is even done when the volume rate of acetone to water is 1∶2.

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