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Effect of surface motion on the rotational quadrupole alignment parameter of D2 reacting on Cu(111). | LitMetric

Effect of surface motion on the rotational quadrupole alignment parameter of D2 reacting on Cu(111).

Phys Rev Lett

Leiden Institute of Chemistry, Gorlaeus Laboratories, Leiden University, P.O. Box 9502, 2300 RA Leiden, The Netherlands.

Published: June 2012

AI Article Synopsis

Article Abstract

Ab initio molecular dynamics (AIMD) calculations using the specific reaction parameter approach to density functional theory are presented for the reaction of D2 on Cu(111) at high surface temperature (T(s)=925  K). The focus is on the dependence of reaction on the alignment of the molecule's angular momentum relative to the surface. For the two rovibrational states for which measured energy resolved rotational quadrupole alignment parameters are available, and for the energies for which statistically accurate rotational quadrupole alignment parameters could be computed, statistically significant results of our AIMD calculations are that, on average, (i) including the effect of the experimental surface temperature (925 K) in the AIMD simulations leads to decreased rotational quadrupole alignment parameters, and (ii) including this effect leads to increased agreement with experiment.

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Source
http://dx.doi.org/10.1103/PhysRevLett.108.236104DOI Listing

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