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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 (CH_3COCH_3)_n-(H_2O)_ n-2 H+,(CH_3COCH_3)_n-(H_2O)_ n-1 H+ and (CH_3COCH_3)_n-(H_2O)_nH+ are concluded from the results.In order to study the equilibrium structures of the (CH_3COCH_3)_n-(H_2O)_ n-2 H+,the ab-initio calculation is used on them.The experiment is even done when the volume rate of acetone to water is 1∶2.
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 (CH_3COCH_3) _n- (H_2O ) _ n-2 H +, (CH_3COCH_3) _n- (H_2O) _n-1 H + and (CH_3COCH_3) _n- (H_2O) _nH + are concluded from the results.In order to study the equilibrium structures of the (CH_3COCH_3) _n- (H_2O) _ n-2 H +, the ab-initio calculation is used on them. The experiment is even done when the volume rate of acetone to water is 1: 2.