Accurate determination of the nuclear quadrupole moment of xenon from the molecular method

被引:5
作者
Canella, Guilherme A. [1 ]
Santiago, Regis T. [1 ]
Haiduke, Roberto L. A. [1 ]
机构
[1] Univ Sao Paulo, Inst Quim Sao Carlos, Dept Quim & Fis Mol, Ave Trabalhador Sao Carlense 400 CP 780, BR-13560970 Sao Carlos, SP, Brazil
基金
巴西圣保罗研究基金会;
关键词
Nuclear quadrupole moment; Electric field gradient; Xenon; ELECTRIC-FIELD GRADIENTS; RELATIVISTIC DOUBLE-ZETA; GAUSSIAN-BASIS SETS; HYPERFINE-STRUCTURE; TRIPLE-ZETA; DENSITY; SPECTROSCOPY;
D O I
10.1016/j.cplett.2016.08.031
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
This study provides a new determination of the nuclear electric quadrupole moment (NQM) for Xe-131, which is achieved by the molecular method. Dirac-Coulomb Coupled Cluster calculations with a Gaunt correction (DC+G-CC) of electric field gradients (EFGs) and experimental nuclear quadrupole coupling constants of six molecular systems (XeH+, XeCuF, XeCuCl, XeAgF, XeAgCl and XeAuF) were considered. The best NQM obtained by our DC+G-CCSD-T EFGs was -114.6(1.1) mbarn, which is recommended as the new reference value for this nuclide given the high level electron structure calculations done here. (C) 2016 Elsevier B.V. All rights reserved.
引用
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页码:228 / 232
页数:5
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