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- W3138913041 endingPage "113214" @default.
- W3138913041 startingPage "113214" @default.
- W3138913041 abstract "The noncovalent interaction between chlorine oxyanions, namely: (hypochlorite (ClO−), chlorite (ClO2−), chlorate (ClO3−), and perchlorate (ClO4−), and benzene block is explicitly investigated and analyzed theoretically. The performance of a variety of DFT functionals and their dispersion-corrected DFT-D3 functionals as well as various wavefunction-based SAPT methods for the prediction of noncovalent interaction energies of C6H6–ClOx− (x = 1–4) complexes is justified in comparison with the benchmark CCSD(T)/CBS method. The results showed that benzene can form stable hydrogen-bond complexes of moderate strength with chlorine oxyanions. Moreover, the existence of favorable anion-π interactions between chlorine oxyanions and benzene π-system was demonstrated, which is predominantly attributed to attractive dispersion effects that depend on both the anion polarizability and the binding distance. It is worth mentioning that the origin of the binding energy in the studied complexes was found to be attributed in 68–74% to dispersion interaction. The sSAPT0/aVDZ method is found to perform qualitatively well for the prediction of the variation trends for the interaction energy components, compared to the computationally expensive, though provided the most accurate performance, SAPT2+(CCD)δMP2/aVTZ method. The D3-corrected DFT functionals showed good overall performance, particularly those of M06-2X, TPSS, PBE, and B3LYP." @default.
- W3138913041 created "2021-03-29" @default.
- W3138913041 creator A5010379229 @default.
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- W3138913041 creator A5073541188 @default.
- W3138913041 date "2021-05-01" @default.
- W3138913041 modified "2023-09-26" @default.
- W3138913041 title "Unexpected favourable noncovalent interaction between chlorine oxyanions (ClO−; x = 1–4) and benzene: Benchmarking DFT and SAPT methods with respect to CCSD(T)" @default.
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- W3138913041 doi "https://doi.org/10.1016/j.comptc.2021.113214" @default.
- W3138913041 hasPublicationYear "2021" @default.
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