期刊
JOURNAL OF CHEMICAL PHYSICS
卷 113, 期 21, 页码 9410-9418出版社
AMER INST PHYSICS
DOI: 10.1063/1.1321310
关键词
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Based on our recently published two-component relativistic formulation of the nuclear spin-spin coupling hyperfine terms, we present a full implementation into the Amsterdam Density Functional program. The scalar relativistic code has been extended to include the relativistic analogue of the spin-dipole operator in the coupling calculations, which can now in addition be based on two-component spin-orbit coupled Kohn-Sham orbitals. One-bond coupling constants for some plumbanes are in good agreement with experiment, slightly improving the scalar relativistic values. Coupling constants and anisotropies for the XF (X=Cl, Br, I) and TlX (X=F, Cl, Br, I) series are compared to experimental data and for ClF additionally to recently published nb initio calculations. The spin-dipole term contributes largely to the coupling constants in XF. Spin-orbit effects are essential for the TlX couplings, when they can yield the most important contributions. In addition, data is reported for the benchmark systems ethane, ethene, and ethyne. (C) 2000 American Institute of Physics [S0021-9606(00)30745-0].
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