Home >> The European Physical Journal D - Atomic, Molecular and Optical Physics, Volume 30, Number 1

High resolution multiphoton ionization and dissociation of acetone via $\mathsf{3s\leftarrow n}$ Rydberg transitions

Authors: Mejía-Ospino, E.1; García, G.2; Guerrero, A.3; Álvarez, I.3; Cisneros, C.3

Source: The European Physical Journal D - Atomic, Molecular and Optical Physics, Volume 30, Number 1, July 2004 , pp. 149-153(5)

Publisher: Springer

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Abstract:

Measurements of multiphoton ionization and dissociation of acetone are reported in the wavelength range 582.60-585.80 nm at photon energy resolution of 0.3 cm-1. To our knowledge there are not available results of (3 + 2) REMPI on acetone at 0.01 nm in this region. The experiments were performed using an Nd: YAG-OPO (optical parametric oscillator) laser system coupled to time-of-flight mass spectrometer. The ion yield and the single ion channel are presented. The high-resolution three-photon resonance multiphoton spectrum of the acetone $3s\leftarrow n$ Rydberg transition is also reported. The experimental results show three dissociation channels of the acetone ion, leading to the products: (CH3CO + ), (CH3 + ) and (COH + ); the channel CH3COCH $_{3}^{ + } \to \rm CH$ 3CO + + CH3 being the most favored. The acetone and acetyl ions are observed in all wavelength range investigated. In addition, we have measured the origin of the $3s\leftarrow n$ and $4s\leftarrow n$ transitions, and vibrational bands of the 3s state.

Document Type: Research article

DOI: http://dx.doi.org/10.1140/epjd/e2004-00069-3

Affiliations: 1: Centro de Ciencias Físicas, Universidad Nacional Autónoma de México, Post. 48-3, C.P. 62210, Cuernavaca, Mor. Apdo, Mexico, Email: emejia@ce.fis.unam.mx 2: Laboratorio de Espectroscopía Atómica y Molecular, Universidad Industrial de Santander, A.A.678, Bucaramanga, Colombia, 3: Centro de Ciencias Físicas, Universidad Nacional Autónoma de México, Post. 48-3, C.P. 62210, Cuernavaca, Mor. Apdo, Mexico,

Publication date: 2004-07-01

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