ISSN:
1089-7690
Source:
AIP Digital Archive
Topics:
Physics
,
Chemistry and Pharmacology
Notes:
Protonated ammonia clusters of specific size are observed to form following the resonant enhanced ionization of phenylacetylene–ammonia clusters PA⋅(NH3)n in the 000 region of the S1–S0 transition of the (unclustered) PA. The resonance enhanced absorption of two photons, ≈8.8 eV total energy, are found to cause intracluster reactions for n≥5. The findings imply that the adiabatic ionization potential of (NH3)4 is greater than 8.8 eV, while that of (NH3)5 is (slightly) less.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.456521