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Redox Potentials with COSMO-RS: Systematic Benchmarking with Different Databases
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SYSNO ASEP 0568172 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Redox Potentials with COSMO-RS: Systematic Benchmarking with Different Databases Tvůrce(i) Tomaník, L. (CZ)
Rulíšek, Lubomír (UOCHB-X) RID, ORCID
Slavíček, P. (CZ)Zdroj.dok. Journal of Chemical Theory and Computation . - : American Chemical Society - ISSN 1549-9618
Roč. 19, č. 3 (2023), s. 1014-1022Poč.str. 9 s. Jazyk dok. eng - angličtina Země vyd. US - Spojené státy americké Klíč. slova solvation free energies ; computational electrochemistry ; reduction potentials Obor OECD Physical chemistry Způsob publikování Omezený přístup Institucionální podpora UOCHB-X - RVO:61388963 UT WOS 000923285900001 EID SCOPUS 85146626024 DOI 10.1021/acs.jctc.2c00919 Anotace Recent techniques of computational electrochemistry can yield redox potentials with accuracy as good as 0.1 V. Yet, many such methods are not universal, easy to use, or computationally efficient. Herein, we provide a systematic benchmarking of a relatively cheap and straightforward computational approach for fairly accurate computations of redox potentials. It is based on a combination of the conductor-like screening model for real solvents (COSMO-RS) and the density functional theory (DFT). The benchmarking is done with databases covering diverse redox systems, including transition-metal aquacomplexes and various organic and inorganic compounds. In addition, we also present our own test set aiming at maximum chemical diversity and maximum range of redox potential values. We assess the performance of the fairly efficient computational protocol combining the COSMO-RS with the BP86 DFT functional. This is done by calibrating it against different high-level state-of-the-art techniques, in particular, polarizable continuum model (PCM) connected to composite G3(MP2,CC)(+) method, domain-based pair natural orbital implementation of coupled cluster theory, or complete basis set CBS-QB3 method. We also elaborate on the absolute reduction potential value of standard hydrogen electrode to be used with COSMO-RS, and we propose the value of approx. 4.4 V. The COSMO-RS/BP86-D3(BJ) combination outperforms other methods on a wide range of redox systems. However, we show that its accuracy is based on a balanced error cancelation and, therefore, it cannot be further systematically improved. As a result, the proposed procedure represents a pragmatic choice for large-scale screening, yet it could be combined with more advanced methods for detailed studies. Pracoviště Ústav organické chemie a biochemie Kontakt asep@uochb.cas.cz ; Kateřina Šperková, Tel.: 232 002 584 ; Viktorie Chládková, Tel.: 232 002 434 Rok sběru 2024 Elektronická adresa https://doi.org/10.1021/acs.jctc.2c00919
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