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Bautista-Renedo J, Ireta J. Spurious proton transfer in hydrogen bonded dimers. Phys Chem Chem Phys 2024; 26:21468-21475. [PMID: 39081021 DOI: 10.1039/d4cp00907j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/15/2024]
Abstract
In some hydrogen bonded systems, the proton may translocate along the hydrogen bond (hb) upon geometry optimization with electronic structure methods like density functional theory (DFT). Such proton transfer (pt) events, however, may be spurious. In this work, spurious pt events are investigated in a set of hydrogen bonded dimers formed with molecules HXN, where X stands for C, Si, Ge and Sn. It is found that standard approximations to the electronic exchange and correlation (xc) functional either predict spurious pt events or too strong hbs in all the (HXN)2 dimers except the (HCN)2 one. The latter result is revealed by comparing DFT calculations against wave function methods. Such spurious pt events may be avoided by fine-tuning the percentage of exact exchange (ex) in hybrid xc-functionals. It is shown that the minimum amount of ex to avoid a spurious pt event ranged from 8% to 90%, depending on the system, basis set and xc-functional approximation used. However, these fine-tuned xc-functionals inadequately describe the hb in the (HXN)2 dimers. Moreover, it is determined that the spurious pt event originates from a wrong description of the isolated HXN molecules by xc-functionals that do not include ex or a small amount of it. Therefore, it is argued that one can determine if a pt event is spurious by analyzing the geometry and electronic structure of the isolated molecule.
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Affiliation(s)
- Joanatan Bautista-Renedo
- Departamento de Química, División de Ciencias Básicas e Ingeniería, Universidad Autónoma Metropolitana-Iztapalapa, Ciudad de México 09340, Mexico.
| | - Joel Ireta
- Departamento de Química, División de Ciencias Básicas e Ingeniería, Universidad Autónoma Metropolitana-Iztapalapa, Ciudad de México 09340, Mexico.
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Briccolani-Bandini L, Brémond E, Pagliai M, Cardini G, Ciofini I, Adamo C. Concerted versus stepwise proton transfer reactions in the [2, 2'-bipyridyl]-3-3'-diol molecule: A static and dynamic ab-initio investigation. J Comput Chem 2023; 44:2308-2318. [PMID: 37584183 DOI: 10.1002/jcc.27198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Revised: 07/09/2023] [Accepted: 07/11/2023] [Indexed: 08/17/2023]
Abstract
The double proton transfer (PT) reaction has been investigated in the [2,2'-bipyridyl]-3-3'-diol, a complex molecule where the proton movements is coupled to significant rearrangement of the electronic structure. Moreover, the reaction could be concerted, that is the two protons are exchanged simultaneously, or stepwise, where the two protons are transferred sequentially. To this end, a static exploration of the potential energy surface (PES) was carried together with the analysis of the free-energy surface (FES), both surfaces being evaluated at density functional theory level and different exchange-correlation functionals. While the concerted mechanism has been clearly discharged, the characteristics of the stepwise PT significantly depends on the chosen functionals, some suggesting a clear stepwise mechanism characterized by a stable reaction intermediates and two transitions states, whereas other approaches propend for a asynchronous PT, with a single TS. These features appear on both PES and FES, albeit some differences appears due to their different nature.
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Affiliation(s)
| | - Eric Brémond
- ITODYS, CNRS, Université Paris Cité, Paris, France
| | - Marco Pagliai
- Dipartimento di Chimica "Ugo Schiff", Università degli Studi di Firenze, Sesto Fiorentino, Italy
| | - Gianni Cardini
- Dipartimento di Chimica "Ugo Schiff", Università degli Studi di Firenze, Sesto Fiorentino, Italy
| | - Ilaria Ciofini
- CNRS, i-CLeHS, UMR 8060, Chimie ParisTech, PSL University, Paris, France
| | - Carlo Adamo
- CNRS, i-CLeHS, UMR 8060, Chimie ParisTech, PSL University, Paris, France
- Institut Universitaire de France, Paris, France
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Toldo JM, do Casal MT, Ventura E, do Monte SA, Barbatti M. Surface hopping modeling of charge and energy transfer in active environments. Phys Chem Chem Phys 2023; 25:8293-8316. [PMID: 36916738 PMCID: PMC10034598 DOI: 10.1039/d3cp00247k] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Accepted: 03/01/2023] [Indexed: 03/05/2023]
Abstract
An active environment is any atomic or molecular system changing a chromophore's nonadiabatic dynamics compared to the isolated molecule. The action of the environment on the chromophore occurs by changing the potential energy landscape and triggering new energy and charge flows unavailable in the vacuum. Surface hopping is a mixed quantum-classical approach whose extreme flexibility has made it the primary platform for implementing novel methodologies to investigate the nonadiabatic dynamics of a chromophore in active environments. This Perspective paper surveys the latest developments in the field, focusing on charge and energy transfer processes.
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Affiliation(s)
| | | | - Elizete Ventura
- Departamento de Química, CCEN, Universidade Federal da Paraíba, 58059-900, João Pessoa, Brazil.
| | - Silmar A do Monte
- Departamento de Química, CCEN, Universidade Federal da Paraíba, 58059-900, João Pessoa, Brazil.
| | - Mario Barbatti
- Aix-Marseille University, CNRS, ICR, Marseille, France.
- Institut Universitaire de France, 75231, Paris, France
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Umesaki K, Odai K. Tunneling Effect in Proton Transfer: Transfer Matrix Approach. J Phys Chem A 2023; 127:1046-1052. [PMID: 36689270 DOI: 10.1021/acs.jpca.2c05880] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
The transfer matrix (TM) method was applied to calculate the transmission probability (TP) for proton transfer reactions. The tunneling factors in the reaction rate constants were also evaluated using the TPs. To test this method, TPs for the Eckart potentials modeled as a guanine-cytosine base pair were calculated by the TM method and compared to TPs by the analytical solution. As a result, the errors in the TPs by the TM method were quite small. The tunneling factors for the guanine-thymine (G-T) and adenine-cytosine (A-C) mispair reactions were then evaluated by the TM method. A shoulder appears on each potential for these reactions [Odai, K.; Umesaki,K. J. Phys. Chem. A. 2021, 125, 8196-8204]. As a result, the shoulder for the G-T mispair reaction contributes significantly to the tunneling, while the shoulder for the A-C mispair reaction contributes little to the tunneling. These results are difficult to obtain with methods such as Wigner's tunneling factor.
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Affiliation(s)
- Keisho Umesaki
- School of Science and Engineering, Kokushikan University, Setagaya-ku, Tokyo154-8515, Japan
| | - Kei Odai
- School of Science and Engineering, Kokushikan University, Setagaya-ku, Tokyo154-8515, Japan
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Strong proton transfer from phenolic ring to imine functionality in 1D azido and dicyanamido bridged Mn(II) coordination polymers: Synthesis, crystal structure and magnetic studies. Inorganica Chim Acta 2022. [DOI: 10.1016/j.ica.2022.121005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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Sülzner N, Hättig C. Theoretical Study on the Photoacidity of Hydroxypyrene Derivatives in DMSO Using ADC(2) and CC2. J Phys Chem A 2022; 126:5911-5923. [PMID: 36037028 DOI: 10.1021/acs.jpca.2c04436] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
This work applies the thermodynamic Förster cycle to theoretically investigate the pKa*, i.e., excited-state pKa values of pyranine-derived superphotoacids developed by Jung and co-workers. The latter photoacids are strong enough to transfer a proton to the aprotic solvent dimethyl sulfoxide (DMSO). The Förster cycle provides access to pKa* via the ground-state pKa and the electronic excitation energies. We use the conductor-like screening model for real solvents (COSMO-RS) to compute the ground-state pKa and the correlated wavefunction-based methods ADC(2) and CC2 with the continuum solvation model COSMO to calculate the pKa change upon excitation. A comparison of the calculated UV/Vis absorption and fluorescence emission energies to the experimental results leads us to infer that this approach allows for a proper description of the electronic excitations. In particular, implicit solvation by means of the COSMO model appears to be sufficient for the treatment of these photoacids in DMSO. The calculations confirm the presumption that a charge redistribution from the hydroxy group to the aromatic ring and the electron-withdrawing substituents is the origin of photoacidity for these photoacids. Moreover, the calculations with the continuum solvation model predict that the pKa jump upon excitation decreases with increasing solvent polarity, as rationalized based on the Förster cycle.
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Affiliation(s)
- Niklas Sülzner
- Lehrstuhl für Theoretische Chemie, Ruhr-Universität Bochum, 44780 Bochum, Germany
| | - Christof Hättig
- Lehrstuhl für Theoretische Chemie, Ruhr-Universität Bochum, 44780 Bochum, Germany
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Sülzner N, Haberhauer J, Hättig C, Hellweg A. Prediction of acid pK a values in the solvent acetone based on COSMO-RS. J Comput Chem 2022; 43:1011-1022. [PMID: 35460090 DOI: 10.1002/jcc.26864] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Revised: 03/25/2022] [Accepted: 03/29/2022] [Indexed: 11/08/2022]
Abstract
In this contribution we extent the use of the conductor-like screening model for realistic solvation (COSMO-RS) to the prediction of pKa values in acetone, a commonly used dipolar aprotic solvent. For this, we calculated the Gibbs free energy of dissociation of 120 organic acids (nine acrylic acids, 87 benzoic acids, nine phenols, and 15 benzenesulfonamides) using COSMO-RS at the two levels BP-TZVP and BP-TZVPD-FINE and determined the parameters for a linear free energy relation for the p K a prediction by performing linear fits to experimental values. Our results suggest that the data set dissects into two groups, with the phenols being different from the other three subsets. The acrylic and benzoic acids and the sulfonamides can be treated together and yield an excellent linear correlation ( r 2 > 0.95 ) with an RMSD of only ~0.3. The slope is found to be significantly smaller than the theoretical value ( 1 / RT ln 10 ), only 45% of it, which is in accordance with findings in the literature. The phenols, however, while similarly well correlated in their own subset with an RMSD of 1.7-1.9, exhibit a slope larger than one. We discuss both a higher uncertainty in the reference values as well as physical origins as possible reasons.
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Affiliation(s)
- Niklas Sülzner
- Lehrstuhl für Theoretische Chemie, Ruhr-Universität Bochum, Bochum, 44780, Germany
| | - Julia Haberhauer
- Lehrstuhl für Theoretische Chemie, Ruhr-Universität Bochum, Bochum, 44780, Germany
| | - Christof Hättig
- Lehrstuhl für Theoretische Chemie, Ruhr-Universität Bochum, Bochum, 44780, Germany
| | - Arnim Hellweg
- Dassault Systèmes Deutschland GmbH, Am Kabellager 11-15, Köln, 51063, Germany
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Pavošević F, Hammes-Schiffer S, Rubio A, Flick J. Cavity-Modulated Proton Transfer Reactions. J Am Chem Soc 2022; 144:4995-5002. [PMID: 35271261 DOI: 10.1021/jacs.1c13201] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Proton transfer is ubiquitous in many fundamental chemical and biological processes, and the ability to modulate and control the proton transfer rate would have a major impact on numerous quantum technological advances. One possibility to modulate the reaction rate of proton transfer processes is given by exploiting the strong light-matter coupling of chemical systems inside optical or nanoplasmonic cavities. In this work, we investigate the proton transfer reactions in the prototype malonaldehyde and Z-3-amino-propenal (aminopropenal) molecules using different quantum electrodynamics methods, in particular, quantum electrodynamics coupled cluster theory and quantum electrodynamical density functional theory. Depending on the cavity mode polarization direction, we show that the optical cavity can increase the reaction energy barrier by 10-20% or decrease the reaction barrier by ∼5%. By using first-principles methods, this work establishes strong light-matter coupling as a viable and practical route to alter and catalyze proton transfer reactions.
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Affiliation(s)
- Fabijan Pavošević
- Center for Computational Quantum Physics, Flatiron Institute, 162 Fifth Avenue, 10010 New York, New York, United States
| | - Sharon Hammes-Schiffer
- Department of Chemistry, Yale University, 225 Prospect Street, 06520 New Haven, Connecticut, United States
| | - Angel Rubio
- Center for Computational Quantum Physics, Flatiron Institute, 162 Fifth Avenue, 10010 New York, New York, United States.,Max Planck Institute for the Structure and Dynamics of Matter and Center for Free-Electron Laser Science, Luruper Chaussee 149, 22761 Hamburg, Germany.,Nano-Bio Spectroscopy Group and European Theoretical Spectroscopy Facility, Universidad del País Vasco, Av. Tolosa 72, 20018 San Sebastian, Spain
| | - Johannes Flick
- Center for Computational Quantum Physics, Flatiron Institute, 162 Fifth Avenue, 10010 New York, New York, United States
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