Abstract The multiphoton ionization spectra of dimethylamine are given in the 445-470 nm region. A time of flight mass spectrometer was used,and experiment was done under collision free condition. It is found that (2+2) resonance enhanced multiphoton ionization through (nN,3s) Rydberg state produces parent ions which endure pseudo-$\alpha$ and C—N bond cleavages. The former forms CH3N+H=CH2 ions,and the latter gives CH2=N+H2 ions .
Received: 23 April 1997
Accepted manuscript online:
PACS:
33.80.Rv
(Multiphoton ionization and excitation to highly excited states (e.g., Rydberg states))
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