Low-temperature reactions of some atomic ions with molecules of large quadrupole moment: C6F6 and c-C6H12 |
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| Institution: | 1. NRC Postdoc at Air Force Research Laboratory, Space Vehicles Directorate, Kirtland Air Force Base, NM 87117, USA;2. USRA Space Scholar at Air Force Research Laboratory, Space Vehicles Directorate, Kirtland Air Force Base, NM 87117, USA;3. Boston College Institute for Scientific Research, Boston, MA 02549, USA;4. Air Force Research Laboratory, Space Vehicles Directorate, Kirtland Air Force Base, NM 87117, USA;1. Air Force Research Laboratory, Space Vehicles Directorate, Kirtland Air Force Base, NM, 87117, USA;2. INIFTA, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, CONICET, Argentina;3. Max-Planck-Institut für Biophysikalische Chemie, Am Fassberg 11, D-37077, Göttingen, Germany |
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| Abstract: | Reactions of He+,C+ and N+ ions with C6F6, and c-C6H6 were examined at 27, 68 and 297 K using both CRESU and SIFT techniques. Within the experimental uncertainties, all of the rate coefficients are found to be temperature-independent in this range. The results are discussed in relation to the most recent theoretical models describing the influence of the quadrupole moment on the temperature dependence of ion-molecule reaction rate coefficients. |
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