Multiphoton ionization mass spectroscopic detection of ammonia clusters |
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| Authors: | H Shinohara N Nishi |
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| Affiliation: | Institute for Molecular Science, Myodatji, Okazaki 444, Japan |
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| Abstract: | Ammonia cluster ions (NH3)n?2NH+4 (n = 2?8), havevbeen detected by multiphoton ionization (MPI) mass spectroscopy, incorporating both a supersonic nozzle source and an ArB excimer laser. The MPI method reveals that the intensity ratio of NH+4/NH+3 is more than an order of magnitude greater than that in the electron impact mass spectrum. |
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