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Andrade MDD, Jesus WS, Prudente FV, Marques JMC. On the stabilization of the Li$$^+$$-Li$$^+$$ interaction by microsolvation with rare-gas atoms. Theor Chem Acc 2021. [DOI: 10.1007/s00214-021-02763-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Jesus WS, Prudente FV, Marques JMC, Pereira FB. Modeling microsolvation clusters with electronic-structure calculations guided by analytical potentials and predictive machine learning techniques. Phys Chem Chem Phys 2021; 23:1738-1749. [PMID: 33427847 DOI: 10.1039/d0cp05200k] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
We propose a new methodology to study, at the density functional theory (DFT) level, the clusters resulting from the microsolvation of alkali-metal ions with rare-gas atoms. The workflow begins with a global optimization search to generate a pool of low-energy minimum structures for different cluster sizes. This is achieved by employing an analytical potential energy surface (PES) and an evolutionary algorithm (EA). The next main stage of the methodology is devoted to establish an adequate DFT approach to treat the microsolvation system, through a systematic benchmark study involving several combinations of functionals and basis sets, in order to characterize the global minimum structures of the smaller clusters. In the next stage, we apply machine learning (ML) classification algorithms to predict how the low-energy minima of the analytical PES map to the DFT ones. An early and accurate detection of likely DFT local minima is extremely important to guide the choice of the most promising low-energy minima of large clusters to be re-optimized at the DFT level of theory. In this work, the methodology was applied to the Li+Krn (n = 2-14 and 16) microsolvation clusters for which the most competitive DFT approach was found to be the B3LYP-D3/aug-pcseg-1. Additionally, the ML classifier was able to accurately predict most of the solutions to be re-optimized at the DFT level of theory, thereby greatly enhancing the efficiency of the process and allowing its applicability to larger clusters.
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Affiliation(s)
- W S Jesus
- Instituto de Física, Universidade Federal da Bahia, 40170-115 Salvador, BA, Brazil.
| | - F V Prudente
- Instituto de Física, Universidade Federal da Bahia, 40170-115 Salvador, BA, Brazil.
| | - J M C Marques
- CQC, Department of Chemistry, University of Coimbra, 3004-535 Coimbra, Portugal.
| | - F B Pereira
- Coimbra Polytechnic - ISEC, Coimbra, Portugal and Centro de Informática e Sistemas da Universidade de Coimbra (CISUC), Coimbra, Portugal.
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Fujimoto MM, Tanaka HK, Marinho RRT, Medina A, Prudente FV, Homem MGP. Cross Sections and Asymmetry Parameters for Formic Acid in the Vacuum-Ultraviolet Energy Range. J Phys Chem A 2020; 124:6478-6485. [DOI: 10.1021/acs.jpca.0c03520] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- M. M. Fujimoto
- Departamento de Fı́sica, Universidade Federal do Paraná, 81531-980 Curitiba, PR, Brazil
| | - H. K. Tanaka
- Instituto Federal da Bahia, 45810-000 Porto Seguro, BA, Brazil
- Instituto de Fı́sica, Universidade Federal da Bahia, 40170-115 Salvador, BA, Brazil
| | - R. R. T. Marinho
- Instituto de Fı́sica, Universidade de Brası́lia, Box 4455, 70910-970 Brasília, DF, Brazil
| | - A. Medina
- Instituto de Fı́sica, Universidade Federal do Rio de Janeiro, 21941-972 Rio de Janeiro, RJ, Brazil
| | - F. V. Prudente
- Instituto de Fı́sica, Universidade Federal da Bahia, 40170-115 Salvador, BA, Brazil
| | - M. G. P. Homem
- Departamento de Quı́mica, Universidade Federal de São Carlos, 13565-905 São Carlos, SP, Brazil
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Guimarães MN, M. de Almeida M, Marques JMC, Prudente FV. A thermodynamic view on the microsolvation of ions by rare gas: application to Li+ with argon. Phys Chem Chem Phys 2020; 22:10882-10892. [DOI: 10.1039/d0cp01283a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Parallel tempering Monte Carlo calculations on the Li+Arn microsolvation clusters have shown that the two peaks appearing in the heat capacity curve as a function of temperature correspond to the melting of the second and first solvation shells.
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Affiliation(s)
- M. N. Guimarães
- Instituto de Física
- Universidade Federal da Bahia
- 40170-115 Salvador
- Brazil
| | - M. M. de Almeida
- Instituto de Física
- Universidade Federal da Bahia
- 40170-115 Salvador
- Brazil
| | - J. M. C. Marques
- CQC
- Department of Chemistry
- University of Coimbra
- 3004-535 Coimbra
- Portugal
| | - F. V. Prudente
- Instituto de Física
- Universidade Federal da Bahia
- 40170-115 Salvador
- Brazil
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Sousa JN, Ribeiro LC, Arruda MS, Homem MGP, Tanaka HK, Credidio BC, Marinho RRT, Medina A, Prazeres I, Santos ACF, Prudente FV. Photoabsorption and Photoionization Cross Sections of Pyridine in the Vacuum-Ultraviolet Energy Range. J Phys Chem A 2019; 123:5164-5170. [DOI: 10.1021/acs.jpca.9b03778] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- J. N. Sousa
- Instituto de Física, Universidade Federal da Bahia, Salvador 40170-115, BA, Brazil
- Instituto Federal Baiano, Campus Guanambi, Guanambi 46430-000, BA, Brazil
| | - L. C. Ribeiro
- Instituto de Física, Universidade Federal da Bahia, Salvador 40170-115, BA, Brazil
| | - Manuela S. Arruda
- Instituto de Física, Universidade Federal da Bahia, Salvador 40170-115, BA, Brazil
| | - M. G. P. Homem
- Departamento de Química, Universidade Federal de São Carlos, São Carlos 13565-905, SP, Brazil
| | - H. K. Tanaka
- Instituto Federal da Bahia, Campus Porto Seguro, Porto Seguro 45810-000, BA, Brazil
| | - B. C. Credidio
- Instituto de Física, Universidade Federal da Bahia, Salvador 40170-115, BA, Brazil
| | - R. R. T. Marinho
- Instituto de Física, Universidade Federal da Bahia, Salvador 40170-115, BA, Brazil
- Instituto de Física, Universidade de Brasilia, Box 4455, Brasília 70910-970, Brazil
| | - Aline Medina
- Instituto de Física, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-909, RJ, Brazil
| | - I. Prazeres
- Instituto de Física, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-909, RJ, Brazil
| | - A. C. F. Santos
- Instituto de Física, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-909, RJ, Brazil
| | - F. V. Prudente
- Instituto de Física, Universidade Federal da Bahia, Salvador 40170-115, BA, Brazil
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Tanaka HK, Prudente FV, Medina A, Marinho RRT, Homem MGP, Machado LE, Fujimoto MM. Photoabsorption and photoionization cross sections for formaldehyde in the vacuum-ultraviolet energy range. J Chem Phys 2017. [DOI: 10.1063/1.4977605] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Affiliation(s)
- H. K. Tanaka
- Instituto de Física, Universidade Federal da Bahia, 40.170-115 Salvador, BA, Brazil
- Instituto Federal da Bahia, 45.810-000, Porto Seguro, BA, Brazil
| | - F. V. Prudente
- Instituto de Física, Universidade Federal da Bahia, 40.170-115 Salvador, BA, Brazil
| | - A. Medina
- Instituto de Física, Universidade Federal da Bahia, 40.170-115 Salvador, BA, Brazil
| | - R. R. T. Marinho
- Instituto de Física, Universidade Federal da Bahia, 40.170-115 Salvador, BA, Brazil
| | - M. G. P. Homem
- Departamento de Química, Universidade Federal de São Carlos, 13.565-905 São Carlos, SP, Brazil
| | - L. E. Machado
- Departamento de Física, Universidade Federal de São Carlos, 13.565-905 São Carlos, SP, Brazil
| | - M. M. Fujimoto
- Departamento de Física, Universidade Federal do Paraná, 81.531-990 Curitiba, PR, Brazil
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