期刊
JOURNAL OF CHEMICAL PHYSICS
卷 141, 期 24, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.4904722
关键词
-
资金
- National Nature Science Foundation of China [20973109]
Lanthanide tetrahalide molecules LnX(4) (Ln = Ce, Pr, Tb; X = F, Cl, Br, I) have been investigated by density functional theory at the levels of the relativistic Zero Order Regular Approximation and the relativistic energy-consistent pseudopotentials, using frozen small- and medium-cores. The calculated bond lengths and vibrational frequencies are close to the experimental data. Our calculations indicate 4f shell contributions to bonding in LnX(4), in particular for the early lanthanides, which show significant overlap between the Ln 4f-shell and the halogen np-shells. The 4f shells contribute to Ln-X bonding in LnX(4) about one third more than in LnX(3). (c) 2014 AIP Publishing LLC.
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