Lifetime of C{sub 2}Cl{sub 4}{sup -} ions produced by nondissociative electron attachment to C{sub 2}Cl{sub 4}

Journal Article · Mon Aug 01 00:00:00 EDT 2005 · Journal of Chemical Physics

DOI:https://doi.org/10.1063/1.1995698· OSTI ID:20723007

Liu, Y; Suess, L; Dunning, F B ^[1]

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1. Department of Physics and Astronomy and the Rice Quantum Institute, MS 61 Rice University, Houston, Texas 77005 (United States)

The lifetimes of long-lived C{sub 2}Cl{sub 4}{sup -} ions formed by Rydberg electron transfer in K(np)/C{sub 2}Cl{sub 4} collisions are investigated using a Penning ion trap. Measurements at high n, n{>=}30, show that low-energy electron attachment to C{sub 2}Cl{sub 4} leads to the production of C{sub 2}Cl{sub 4}{sup -} ions with a broad range of lifetimes that extends up to at least 1 ms. This is attributed to capture by molecules in different initial vibrational states. At low n, internal-to-translational energy transfer in postattachment interactions between the product K{sup +} and C{sub 2}Cl{sub 4}{sup -} ions becomes important and leads to a substantial increase in ion lifetimes.

• OSTI ID: 20723007
• Journal Information: Journal of Chemical Physics, Vol. 123, Issue 5; Other Information: DOI: 10.1063/1.1995698; (c) 2005 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0021-9606
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
ANIONS
ATOM-MOLECULE COLLISIONS
CHLORINATED ALIPHATIC HYDROCARBONS
ELECTRON ATTACHMENT
ELECTRON TRANSFER
ENERGY TRANSFER
INTERACTIONS
RYDBERG STATES
VIBRATIONAL STATES