Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5393364 | Computational and Theoretical Chemistry | 2015 | 6 Pages |
â¢The aurophilic interactions in classic systems have been theoretically studied.â¢The [ClAuPH3]2, [S(AuPH3)2] and [AuPH3]4+2 systems have been studied.â¢The post-Hartree-Fock methods provide results closer to the experimental data.
The inter- and intramolecular aurophilic [ClAuPH3]2, [S(AuPH3)2] and [AuPH3]42+ interactions were studied using ab initio post-Hartree-Fock and DFT methodologies. The post-Hartree-Fock methods provide results closer to the experimental data than DFT-based methods. It is possible to highlight the results obtained by the SCS-MP2 and CCSD(T) methods. In the classic [ClAuPH3]2 dimer, the aurophilic interaction is driven by the induction and dispersion terms. When DFT is used, the best results of geometry and interaction energy are obtained with the PW91 level. We find -D3 Grimme correction, M06HF, M06L, M06 M062X, M052X, CAM-B3LYP and LC-ÏPBE provided results of similar accuracy as MP2.
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