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Title

Argon induced bottleneck in the IR multiphoton dissociation of C 3F6

AuthorsRubio, L; Santos, M. ; Torresano, J.A.
Issue Date2002
PublisherHindawi Publishing Corporation
CitationLaser Chemistry 20: 43- 55 (2002)
AbstractIn this work, the effect of added argon (0 to 7.5 hPa) on the collisional mechanisms involved in the infrared multiphoton dissociation of hexafluoropropene (0.1 to 0.8 hPa) at a constant irradiation fluence is studied. The study has been carried out in a quantitative way by applying the extended McRae et al., model. The variation of the different model parameters as a function of argon pressure has been obtained. The results confirm the role played by argon in the occurrence of a significant bottleneck effect in C 3F6. leading to a switch in the behaviour of this molecule in relation to the dissociation process. The existence of a defined threshold value for the argon pressure that clearly separates the small and large dissociation regimes, has been established. This value depends on the number of laser pulses used in the irradiation determining the number of homogeneous and heterogeneous collisions.
URIhttp://hdl.handle.net/10261/108677
ISSN0278-6273
Appears in Collections:(CFMAC-IEM) Artículos
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