期刊
JOURNAL OF CHEMICAL THEORY AND COMPUTATION
卷 5, 期 1, 页码 23-28出版社
AMER CHEMICAL SOC
DOI: 10.1021/ct800299y
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Dispersion corrected atom centered potentials (DCACPs) have been shown to significantly improve the density functional theory (DFT) description of weak interactions. In this work, we have calibrated a DCACP for sulfur in combination with the widely used Generalized Gradient Approximation (GGA) BLYP, thereby augmenting the existing library of DCACPs for the first- and second-row elements H, C, N, O, and rare gases. Three weakly bound complexes as well as elemental (orthorhombic) sulfur are used as test cases to evaluate the transferability of the DCACP to different chemical environments. It is found that the sulfur DCACP systematically improves the agreement of DFT-calculated weak interactions with respect to MP2 and CCSD(T) level results.
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