VOCl, is studied by resonance-enhanced multiphoton ionization in the region 430 to 440 nm. Mass spectrometric detection reveals the production of both V+ and VO' with the molecular ion having the larger intensity. The V+ ion current spectrum shows sharp atomic resonance peaks while the VO+ spectrum
Multiphoton ionization of liquid benzene: the ionization mechanism
โ Scribed by T.W. Scott; A.J. Twarowski; A.C. Albrecht
- Publisher
- Elsevier Science
- Year
- 1979
- Tongue
- English
- Weight
- 343 KB
- Volume
- 66
- Category
- Article
- ISSN
- 0009-2614
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โฆ Synopsis
The multiphoton ionization of liquid benzene at 355 nm is found to be a three-photon process iavol~iag a tv.o-photon produced intermediate state which hves 10 ns or lonser_ Polarization experiments can be rationalized if the tuo-pboton absorption at 177 nm (6.99 cV) involves transitions into a mixture of fmal molecular states having XIg. EIg and/or Ezg symmetrics.
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The firs1 obsenatmn of resonanUy enhanced mulupholon ~omzatlon (REhlPI) of atonuc flr?orme IS reported Four excited stales are observed m the rwon o( 105000 cm-' correspondmg IO me 'Pp,L3,z -'P ,,? 1,2 three-photon translnon m a 3+2-photon romzauon process REMPI speclra of F2 m a 3 + I-phoron proces
Non-resonant multiphoton ionization of xenon clusters has revealed the same magic numbers as found in the case of electron impact ionization. Large dissociation rates are found for the trimer through pentamer ion, measured on a time scale of z lo-' s after ionization.