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Endothermic reactions of uranium ions with N2, D2, and CD4

Armentrout, P. B. and Hodges, R. V. and Beauchamp, J. L. (1977) Endothermic reactions of uranium ions with N2, D2, and CD4. Journal of Chemical Physics, 66 (10). pp. 4683-4688. ISSN 0021-9606. http://resolver.caltech.edu/CaltechAUTHORS:ARMjcp77

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Abstract

An ion beam apparatus is employed to study the reactions of uranium ions with N2, D2, and CD4 at laboratory energies up to 335 eV. The endothermic reaction of U + with nitrogen leads to the product UN + for which a bond dissociation energy D (UN + ) =4.7±0.2 eV is determined, corresponding to DeltaHf(UN + ) =272±7 kcal/mole. Endothermic reactions of U + with D2 and CD4 lead to formation of UD + with D (UD + ) =2.9±0.1 eV and DeltaHf(UD + ) =254±6 kcal/mole. The dependence of experimental reaction cross sections on relative kinetic energy is discussed in terms of simple models for reaction. The proton affinity of uranium is determined, P.A.(U) =238±5 kcal/mole, and this exceptionally high value is compared to other atomic and molecular base strengths.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1063/1.433678DOIUNSPECIFIED
http://link.aip.org/link/?JCPSA6/66/4683/1PublisherUNSPECIFIED
Additional Information:Copyright © 1977 American Institute of Physics. Received 10 January 1977. This work was supported in part by the Ford Motor Company Fund for Energy Research administered by the California Institute of Technology and by the Energy Research and Development Administration. [J.L.B. was a] Camille and Henry Dreyfus Teacher-Scholar, 1971-1976.
Funders:
Funding AgencyGrant Number
Ford Motor Company Fund for Energy ResearchUNSPECIFIED
Energy Research and Development AdministrationUNSPECIFIED
Camille and Henry Dreyfus FoundationUNSPECIFIED
Subject Keywords:IONS BEAMS, URANIUM IONS, ION–, MOLECULE COLLISIONS, CHEMICAL REACTIONS, NITROGEN, DEUTERIUM, METHANE, CROSS SECTIONS
Record Number:CaltechAUTHORS:ARMjcp77
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:ARMjcp77
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:11208
Collection:CaltechAUTHORS
Deposited By: Archive Administrator
Deposited On:23 Jul 2008 23:32
Last Modified:26 Dec 2012 10:10

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