Collisional formation and dissociation of Na@C-60(+)
Abstract
The dissociation rate constant of a microcanonical ensemble of endohedral Na@C-60(+). formed by gas-phase collisions, is determined to be 94000 s(-1) when the internal excitation energy reaches 49.1 +/- 0.5 eV. A model that includes radiative cooling and a distribution of energies, accurately reproduces the yield of Na@C-60(+) from its appearance at 29.6 eV to its disappearance above 55 eV, Assuming an Arrhenius factor of v(o) = 5 x 10(19) s(-1) we derive a dissociation energy of 10.17 +/- 0.02 eV (statistical error). The abruptness of the breakdown graph implies a lower limit for v(o). (C) 2002 Elsevier Science B.V. All rights reserved.
Department
Physics
Publication Date
2-13-2002
Journal Title
Chemical Physics Letters
Publisher
ELSEVIER SCIENCE BV
Digital Object Identifier (DOI)
10.1016/S0009-2614(02)00017-9
Document Type
Article
Recommended Citation
Deng, R. and Echt, Olof E., "Collisional formation and dissociation of Na@C-60(+)" (2002). Chemical Physics Letters. 34.
https://scholars.unh.edu/physics_facpub/34
Rights
© 2002 Elsevier B.V. All rights reserved.