A note on the interaction-induced electric quadrupole moment of two xenon atoms

•Xenon pairs.•Electric quadrupole moment (Θ).•Bond-length dependence of Θ. We have used flexible Gaussian-type basis sets and high-level ab initio methods to calculate the interaction-induced quadrupole (Θ) and hexadecapole (Φ) moment of the Xe⋯Xe pair in the region 4≤R/a0≤15. A very large [15s12p9d...

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Bibliographic Details
Published in:Chemical physics letters Vol. 647; pp. 114 - 116
Main Author: Maroulis, George
Format: Journal Article
Language:English
Published: Elsevier B.V 01-03-2016
Online Access:Get full text
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Summary:•Xenon pairs.•Electric quadrupole moment (Θ).•Bond-length dependence of Θ. We have used flexible Gaussian-type basis sets and high-level ab initio methods to calculate the interaction-induced quadrupole (Θ) and hexadecapole (Φ) moment of the Xe⋯Xe pair in the region 4≤R/a0≤15. A very large [15s12p9d5f1g] basis set yields (at R/a0=4) Θint=−10.3709 and −10.4487 ea02 at the SCF and MP2 level, respectively. At the coupled cluster (CCSD) level the electron correlation correction is positive for both moments around the theoretical internuclear separation of 8.5 a0.
ISSN:0009-2614
1873-4448
DOI:10.1016/j.cplett.2016.01.051