1
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Norouziyanlakvan S, Berro P, Rao GK, Gabidullin B, Richeson D. Electrocatalytic Reduction of CO 2 and H 2O with Zn(II) Complexes Through Metal-Ligand Cooperation. Chemistry 2024; 30:e202303147. [PMID: 38224468 DOI: 10.1002/chem.202303147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Revised: 12/27/2023] [Accepted: 01/15/2024] [Indexed: 01/16/2024]
Abstract
Air and water-stable zinc (II) complexes of neutral pincer bis(diphenylphosphino)-2,6-di(amino)pyridine ("PN3P") ligands are reported. These compounds, [Zn(κ2-2,6-{Ph2PNR}2(NC5H3))Br2] (R=Me, 1; R=H, 2), were shown to be capable of electrocatalytic reduction of CO2 at -2.3 V vs. Fc+/0 to selectively yield CO in mixed water/acetonitrile solutions. These complexes also electrocatalytically generate H2 from water in acetonitrile solutions, at the same potential, with Faradaic efficiencies of up to 90 %. DFT computations support a proposed mechanism involving the first reduction of 1 or 2 occurring at the PN3P ligand. Furthermore, computational analysis suggested a mechanism involving metal-ligand cooperation of a Lewis acidic Zn(II) and a basic ligand.
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Affiliation(s)
- Somayeh Norouziyanlakvan
- Department of Chemistry and Biomolecular Sciences, University of Ottawa, 10 Marie Curie, Ottawa, Ontario, Canada
| | - Patrick Berro
- Department of Chemistry and Biomolecular Sciences, University of Ottawa, 10 Marie Curie, Ottawa, Ontario, Canada
| | - Gyandshwar Kumar Rao
- Faculty of Science Engineering And Technology, Amity University, Haryana, India, 122413
| | - Bulat Gabidullin
- Department of Chemistry and Biomolecular Sciences, University of Ottawa, 10 Marie Curie, Ottawa, Ontario, Canada
| | - Darrin Richeson
- Department of Chemistry and Biomolecular Sciences, University of Ottawa, 10 Marie Curie, Ottawa, Ontario, Canada
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2
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Substituent effects in carbon-nanotube-supported diiron monophosphine complexes for hydrogen evolution reaction. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2022.141325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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3
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Su J, Cheisson T, McSkimming A, Goodwin CAP, DiMucci IM, Albrecht-Schönzart T, Scott BL, Batista ER, Gaunt AJ, Kozimor SA, Yang P, Schelter EJ. Complexation and redox chemistry of neptunium, plutonium and americium with a hydroxylaminato ligand. Chem Sci 2021; 12:13343-13359. [PMID: 34777753 PMCID: PMC8528073 DOI: 10.1039/d1sc03905a] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Accepted: 09/03/2021] [Indexed: 11/25/2022] Open
Abstract
There is significant interest in ligands that can stabilize actinide ions in oxidation states that can be exploited to chemically differentiate 5f and 4f elements. Applications range from developing large-scale actinide separation strategies for nuclear industry processing to carrying out analytical studies that support environmental monitoring and remediation efforts. Here, we report syntheses and characterization of Np(iv), Pu(iv) and Am(iii) complexes with N-tert-butyl-N-(pyridin-2-yl)hydroxylaminato, [2-(tBuNO)py]−(interchangeable hereafter with [(tBuNO)py]−), a ligand which was previously found to impart remarkable stability to cerium in the +4 oxidation state. An[(tBuNO)py]4 (An = Pu, 1; Np, 2) have been synthesized, characterized by X-ray diffraction, X-ray absorption, 1H NMR and UV-vis-NIR spectroscopies, and cyclic voltammetry, along with computational modeling and analysis. In the case of Pu, oxidation of Pu(iii) to Pu(iv) was observed upon complexation with the [(tBuNO)py]− ligand. The Pu complex 1 and Np complex 2 were also isolated directly from Pu(iv) and Np(iv) precursors. Electrochemical measurements indicate that a Pu(iii) species can be accessed upon one-electron reduction of 1 with a large negative reduction potential (E1/2 = −2.26 V vs. Fc+/0). Applying oxidation potentials to 1 and 2 resulted in ligand-centered electron transfer reactions, which is different from the previously reported redox chemistry of UIV[(tBuNO)py]4 that revealed a stable U(v) product. Treatment of an anhydrous Am(iii) precursor with the [(tBuNO)py]− ligand did not result in oxidation to Am(iv). Instead, the dimeric complex [AmIII(μ2-(tBuNO)py)((tBuNO)py)2]2 (3) was isolated. Complex 3 is a rare example of a structurally characterized non-aqueous Am-containing molecular complex prepared using inert atmosphere techniques. Predicted redox potentials from density functional theory calculations show a trivalent accessibility trend of U(iii) < Np(iii) < Pu(iii) and that the higher oxidation states of actinides (i.e., +5 for Np and Pu and +4 for Am) are not stabilized by [2-(tBuNO)py]−, in good agreement with experimental observations. The coordination modes and electronic properties of a strongly coordinating hydroxylaminato ligand with Np, Pu and Am were investigated.Complexes were characterized by a range of experimental and computational techniques.![]()
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Affiliation(s)
- Jing Su
- Theoretical Division, Los Alamos National Laboratory Los Alamos New Mexico 87545 USA
| | - Thibault Cheisson
- P. Roy and Diana T. Vagelos Laboratories, Department of Chemistry, University of Pennsylvania 231 S 34th St. Philadelphia Pennsylvania 19104 USA
| | - Alex McSkimming
- P. Roy and Diana T. Vagelos Laboratories, Department of Chemistry, University of Pennsylvania 231 S 34th St. Philadelphia Pennsylvania 19104 USA
| | - Conrad A P Goodwin
- Chemistry Division, Los Alamos National Laboratory Los Alamos New Mexico 87545 USA
| | - Ida M DiMucci
- Chemistry Division, Los Alamos National Laboratory Los Alamos New Mexico 87545 USA
| | - Thomas Albrecht-Schönzart
- Department of Chemistry and Biochemistry, Florida State University 95 Chieftan Way Tallahassee Florida 32306 USA
| | - Brian L Scott
- Materials and Physics Applications Division, Los Alamos National Laboratory Los Alamos New Mexico 87545 USA
| | - Enrique R Batista
- Theoretical Division, Los Alamos National Laboratory Los Alamos New Mexico 87545 USA
| | - Andrew J Gaunt
- Chemistry Division, Los Alamos National Laboratory Los Alamos New Mexico 87545 USA
| | - Stosh A Kozimor
- Chemistry Division, Los Alamos National Laboratory Los Alamos New Mexico 87545 USA
| | - Ping Yang
- Theoretical Division, Los Alamos National Laboratory Los Alamos New Mexico 87545 USA
| | - Eric J Schelter
- P. Roy and Diana T. Vagelos Laboratories, Department of Chemistry, University of Pennsylvania 231 S 34th St. Philadelphia Pennsylvania 19104 USA
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4
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Torres A, Collado A, Gómez-Gallego M, Ramírez de Arellano C, Sierra MA. Electrocatalytic Behavior of Tetrathiafulvalene (TTF) and Extended Tetrathiafulvalene (exTTF) [FeFe] Hydrogenase Mimics. ACS ORGANIC & INORGANIC AU 2021; 2:23-33. [PMID: 36855407 PMCID: PMC9954209 DOI: 10.1021/acsorginorgau.1c00011] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
TTF- and exTTF-containing [(μ-S2)Fe2(CO)6] complexes have been prepared by the photochemical reaction of TTF or exTTF and [(μ-S2)Fe2(CO)6]. These complexes are able to interact with PAHs. In the absence of air and in acid media an electrocatalytic dihydrogen evolution reaction (HER) occurs, similarly to analogous [(μ-S2)Fe2(CO)6] complexes. However, in the presence of air, the TTF and exTTF organic moieties strongly influence the electrochemistry of these systems. The reported data may be valuable in the design of [FeFe] hydrogenase mimics able to combine the HER properties of the [FeFe] cores with the unique TTF properties.
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Affiliation(s)
- Alejandro Torres
- Departamento
de Química Orgánica I, Facultad de Química, Universidad Complutense, 28040 Madrid, Spain,Center
for Innovation in Advanced Chemistry (ORFEO-CINQA), Facultad de Química, Universidad Complutense, 28040 Madrid, Spain
| | - Alba Collado
- Departamento
de Química Orgánica I, Facultad de Química, Universidad Complutense, 28040 Madrid, Spain,Center
for Innovation in Advanced Chemistry (ORFEO-CINQA), Facultad de Química, Universidad Complutense, 28040 Madrid, Spain
| | - Mar Gómez-Gallego
- Departamento
de Química Orgánica I, Facultad de Química, Universidad Complutense, 28040 Madrid, Spain,Center
for Innovation in Advanced Chemistry (ORFEO-CINQA), Facultad de Química, Universidad Complutense, 28040 Madrid, Spain
| | - Carmen Ramírez de Arellano
- Center
for Innovation in Advanced Chemistry (ORFEO-CINQA), Facultad de Química, Universidad Complutense, 28040 Madrid, Spain,Departamento
de Química Orgánica, Universidad
de Valencia, 46100 Valencia, Spain
| | - Miguel A. Sierra
- Departamento
de Química Orgánica I, Facultad de Química, Universidad Complutense, 28040 Madrid, Spain,Center
for Innovation in Advanced Chemistry (ORFEO-CINQA), Facultad de Química, Universidad Complutense, 28040 Madrid, Spain,Email for M.A.S.:
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5
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Almazahreh LR, Arrigoni F, Abul-Futouh H, El-khateeb M, Görls H, Elleouet C, Schollhammer P, Bertini L, De Gioia L, Rudolph M, Zampella G, Weigand W. Proton Shuttle Mediated by (SCH 2) 2P═O Moiety in [FeFe]-Hydrogenase Mimics: Electrochemical and DFT Studies. ACS Catal 2021. [DOI: 10.1021/acscatal.0c05563] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Laith R. Almazahreh
- ERCOSPLAN Ingenieurbüro Anlagentechnik GmbH Arnstädter Straße 28, 99096 Erfurt, Germany
- Institut für Anorganische und Analytische Chemie, Friedrich-Schiller-Universität Jena, Humboldt Str. 8, 07743 Jena, Germany
| | - Federica Arrigoni
- Department of Biotechnology and Biosciences, University of Milano - Bicocca, Piazza della Scienza 2, 20126 Milan, Italy
| | - Hassan Abul-Futouh
- Department of Pharmacy, Al-Zaytoonah University of Jordan, P.O. Box 130 Amman 11733 Jordan
| | - Mohammad El-khateeb
- Chemistry Department, Jordan University of Science and Technology, Irbid 22110, Jordan
| | - Helmar Görls
- Institut für Anorganische und Analytische Chemie, Friedrich-Schiller-Universität Jena, Humboldt Str. 8, 07743 Jena, Germany
| | - Catherine Elleouet
- UMR CNRS 6521, Chimie, Electrochimie Moléculaires et Chimie Analytique, Université de Bretagne Occidentale, UFR Sciences et Techniques, Cs 93837, 29238 CEDEX 3 Brest, France
| | - Philippe Schollhammer
- UMR CNRS 6521, Chimie, Electrochimie Moléculaires et Chimie Analytique, Université de Bretagne Occidentale, UFR Sciences et Techniques, Cs 93837, 29238 CEDEX 3 Brest, France
| | - Luca Bertini
- Department of Biotechnology and Biosciences, University of Milano - Bicocca, Piazza della Scienza 2, 20126 Milan, Italy
| | - Luca De Gioia
- Department of Biotechnology and Biosciences, University of Milano - Bicocca, Piazza della Scienza 2, 20126 Milan, Italy
| | - Manfred Rudolph
- Institut für Anorganische und Analytische Chemie, Friedrich-Schiller-Universität Jena, Humboldt Str. 8, 07743 Jena, Germany
| | - Giuseppe Zampella
- Department of Biotechnology and Biosciences, University of Milano - Bicocca, Piazza della Scienza 2, 20126 Milan, Italy
| | - Wolfgang Weigand
- Institut für Anorganische und Analytische Chemie, Friedrich-Schiller-Universität Jena, Humboldt Str. 8, 07743 Jena, Germany
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6
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Palmer TC, Beamer A, Pitt T, Popov IA, Cammack CX, Pratt HD, Anderson TM, Batista ER, Yang P, Davis BL. A Comparative Review of Metal-Based Charge Carriers in Nonaqueous Flow Batteries. CHEMSUSCHEM 2021; 14:1214-1228. [PMID: 33305517 DOI: 10.1002/cssc.202002354] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Revised: 12/09/2020] [Indexed: 06/12/2023]
Abstract
Energy storage is becoming the chief barrier to the utilization of more renewable energy sources on the grid. With independent service operators aiming to acquire gigawatts in the next 10-20 years, there is a large need to develop a suite of new storage technologies. Redox flow batteries (RFB) may be part of the solution if certain key barriers are overcome. This Review focuses on a particular kind of RFB based on nonaqueous media that promises to meet the challenge through higher voltages than the organic and aqueous variants. This class of RFB is divided into three groups: molecular, macromolecular, and redox-targeted systems. The growing field of theoretical modeling is also reviewed and discussed.
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Affiliation(s)
- Travis C Palmer
- Materials Synthesis and Integrated Devices, Los Alamos National Laboratory, 87545, Los Alamos, New Mexico, USA
| | - Andrew Beamer
- Materials Synthesis and Integrated Devices, Los Alamos National Laboratory, 87545, Los Alamos, New Mexico, USA
| | - Tristan Pitt
- Materials Synthesis and Integrated Devices, Los Alamos National Laboratory, 87545, Los Alamos, New Mexico, USA
| | - Ivan A Popov
- T-1: Physics and Chemistry of Materials, Los Alamos National Laboratory, 87545, Los Alamos, New Mexico, USA
| | - Claudina X Cammack
- Sandia National Laboratories, P.O. Box 5800, MS 0614, Albuquerque, New Mexico, USA
| | - Harry D Pratt
- Sandia National Laboratories, P.O. Box 5800, MS 0614, Albuquerque, New Mexico, USA
| | - Travis M Anderson
- Sandia National Laboratories, P.O. Box 5800, MS 0614, Albuquerque, New Mexico, USA
| | - Enrique R Batista
- T-CNLS: Center for Nonlinear Studies, Los Alamos National Laboratory, 87545, Los Alamos, New Mexico, USA
| | - Ping Yang
- T-CNLS: Center for Nonlinear Studies, Los Alamos National Laboratory, 87545, Los Alamos, New Mexico, USA
| | - Benjamin L Davis
- Materials Synthesis and Integrated Devices, Los Alamos National Laboratory, 87545, Los Alamos, New Mexico, USA
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7
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Boniolo M, Chernev P, Cheah MH, Heizmann PA, Huang P, Shylin SI, Salhi N, Hossain MK, Gupta AK, Messinger J, Thapper A, Lundberg M. Electronic and geometric structure effects on one-electron oxidation of first-row transition metals in the same ligand framework. Dalton Trans 2021; 50:660-674. [PMID: 33325945 DOI: 10.1039/d0dt03695a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Developing new transition metal catalysts requires understanding of how both metal and ligand properties determine reactivity. Since metal complexes bearing ligands of the Py5 family (2,6-bis-[(2-pyridyl)methyl]pyridine) have been employed in many fields in the past 20 years, we set out here to understand their redox properties by studying a series of base metal ions (M = Mn, Fe, Co, and Ni) within the Py5OH (pyridine-2,6-diylbis[di-(pyridin-2-yl)methanol]) variant. Both reduced (MII) and the one-electron oxidized (MIII) species were carefully characterized using a combination of X-ray crystallography, X-ray absorption spectroscopy, cyclic voltammetry, and density-functional theory calculations. The observed metal-ligand interactions and electrochemical properties do not always follow consistent trends along the periodic table. We demonstrate that this observation cannot be explained by only considering orbital and geometric relaxation, and that spin multiplicity changes needed to be included into the DFT calculations to reproduce and understand these trends. In addition, exchange reactions of the sixth ligand coordinated to the metal, were analysed. Finally, by including published data of the extensively characterised Py5OMe (pyridine-2,6-diylbis[di-(pyridin-2-yl)methoxymethane])complexes, the special characteristics of the less common Py5OH ligand were extracted. This comparison highlights the non-innocent effect of the distal OH functionalization on the geometry, and consequently on the electronic structure of the metal complexes. Together, this gives a complete analysis of metal and ligand degrees of freedom for these base metal complexes, while also providing general insights into how to control electrochemical processes of transition metal complexes.
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Affiliation(s)
- Manuel Boniolo
- Molecular Biomimetics, Department of Chemistry -Ångström Laboratory, Uppsala University, 75120 Uppsala, Sweden.
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8
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Arrigoni F, Bertini L, De Gioia L, Zampella G, Mazzoni R, Cingolani A, Gualandi I, Tonelli D, Zanotti V. On the importance of cyanide in diiron bridging carbyne complexes, unconventional [FeFe]-hydrogenase mimics without dithiolate: An electrochemical and DFT investigation. Inorganica Chim Acta 2020. [DOI: 10.1016/j.ica.2020.119745] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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9
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Collado A, Torres A, Gómez‐Gallego M, Casarrubios L, Sierra MA. A Model for the Prediction of the Redox Potentials in [FeFe]‐Clusters from the Electronic Properties of Isocyanide Ligands. ChemistrySelect 2020. [DOI: 10.1002/slct.202001820] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Alba Collado
- Departamento de Química Orgánica and Centro de Innovación en Química Avanzada (ORFEO-CINQA)Facultad de QuímicaUniversidad Complutense 28040 Madrid Spain
| | - Alejandro Torres
- Departamento de Química Orgánica and Centro de Innovación en Química Avanzada (ORFEO-CINQA)Facultad de QuímicaUniversidad Complutense 28040 Madrid Spain
| | - Mar Gómez‐Gallego
- Departamento de Química Orgánica and Centro de Innovación en Química Avanzada (ORFEO-CINQA)Facultad de QuímicaUniversidad Complutense 28040 Madrid Spain
| | - Luis Casarrubios
- Departamento de Química Orgánica and Centro de Innovación en Química Avanzada (ORFEO-CINQA)Facultad de QuímicaUniversidad Complutense 28040 Madrid Spain
| | - Miguel A. Sierra
- Departamento de Química Orgánica and Centro de Innovación en Química Avanzada (ORFEO-CINQA)Facultad de QuímicaUniversidad Complutense 28040 Madrid Spain
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10
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Loipersberger M, Zee DZ, Panetier JA, Chang CJ, Long JR, Head-Gordon M. Computational Study of an Iron(II) Polypyridine Electrocatalyst for CO2 Reduction: Key Roles for Intramolecular Interactions in CO2 Binding and Proton Transfer. Inorg Chem 2020; 59:8146-8160. [DOI: 10.1021/acs.inorgchem.0c00454] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Matthias Loipersberger
- Pitzer Center for Theoretical Chemistry, Department of Chemistry, University of California, Berkeley, California 94720, United States
- Joint Center for Artificial Photosynthesis, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - David Z. Zee
- Joint Center for Artificial Photosynthesis, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
- Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - Julien A. Panetier
- Joint Center for Artificial Photosynthesis, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
- Department of Chemistry, State University of New York at Binghamton, Binghamton, New York 13902, United States
| | - Christopher J. Chang
- Department of Chemistry, University of California, Berkeley, California 94720, United States
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
- Department of Molecular and Cell Biology, University of California, Berkeley, California 94720, United States
| | - Jeffrey R. Long
- Department of Chemistry, University of California, Berkeley, California 94720, United States
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
- Department of Chemical & Biomolecular Engineering, University of California, Berkeley, California 94720, United States
| | - Martin Head-Gordon
- Pitzer Center for Theoretical Chemistry, Department of Chemistry, University of California, Berkeley, California 94720, United States
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
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11
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Arrigoni F, Bertini L, Breglia R, Greco C, De Gioia L, Zampella G. Catalytic H 2 evolution/oxidation in [FeFe]-hydrogenase biomimetics: account from DFT on the interplay of related issues and proposed solutions. NEW J CHEM 2020. [DOI: 10.1039/d0nj03393f] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
A DFT overview on selected issues regarding diiron catalysts related to [FeFe]-hydrogenase biomimetic research, with implications for both energy conversion and storage strategies.
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Affiliation(s)
- Federica Arrigoni
- Department of Biotechnology and Biosciences
- University of Milano – Bicocca
- 20126 Milan
- Italy
| | - Luca Bertini
- Department of Biotechnology and Biosciences
- University of Milano – Bicocca
- 20126 Milan
- Italy
| | - Raffaella Breglia
- Department of Biotechnology and Biosciences
- University of Milano – Bicocca
- 20126 Milan
- Italy
- Department of Earth and Environmental Sciences
| | - Claudio Greco
- Department of Biotechnology and Biosciences
- University of Milano – Bicocca
- 20126 Milan
- Italy
- Department of Earth and Environmental Sciences
| | - Luca De Gioia
- Department of Biotechnology and Biosciences
- University of Milano – Bicocca
- 20126 Milan
- Italy
| | - Giuseppe Zampella
- Department of Biotechnology and Biosciences
- University of Milano – Bicocca
- 20126 Milan
- Italy
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12
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Kim MJ, Kang YK. Predicting Potential Inversion Behavior of Ru–aqua Complexes via Using Cost Effective DFT Calculations. B KOREAN CHEM SOC 2019. [DOI: 10.1002/bkcs.11878] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Moon Ju Kim
- Department of ChemistrySangmyung University Seoul 03016 Korea
| | - Youn K. Kang
- Department of ChemistrySangmyung University Seoul 03016 Korea
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13
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Randell NM, Rendon J, Demeunynck M, Bayle P, Gambarelli S, Artero V, Mouesca J, Chavarot‐Kerlidou M. Tuning the Electron Storage Potential of a Charge‐Photoaccumulating Ru
II
Complex by a DFT‐Guided Approach. Chemistry 2019; 25:13911-13920. [DOI: 10.1002/chem.201902312] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2019] [Revised: 07/19/2019] [Indexed: 11/06/2022]
Affiliation(s)
- Nicholas M. Randell
- Univ. Grenoble Alpes, CNRS, CEAIRIG, Laboratoire de Chimie et Biologie des Métaux 38000 Grenoble France
| | - Julia Rendon
- Univ. Grenoble Alpes, CNRS, CEAIRIG, Laboratoire de Chimie et Biologie des Métaux 38000 Grenoble France
- Univ. Grenoble Alpes, CEA, CNRSIRIG-DIESE-SyMMES-CAMPE 38000 Grenoble France
| | | | | | - Serge Gambarelli
- Univ. Grenoble Alpes, CEA, CNRSIRIG-DIESE-SyMMES-CAMPE 38000 Grenoble France
| | - Vincent Artero
- Univ. Grenoble Alpes, CNRS, CEAIRIG, Laboratoire de Chimie et Biologie des Métaux 38000 Grenoble France
| | - Jean‐Marie Mouesca
- Univ. Grenoble Alpes, CEA, CNRSIRIG-DIESE-SyMMES-CAMPE 38000 Grenoble France
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14
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Rice NT, Su J, Gompa TP, Russo DR, Telser J, Palatinus L, Bacsa J, Yang P, Batista ER, La Pierre HS. Homoleptic Imidophosphorane Stabilization of Tetravalent Cerium. Inorg Chem 2019; 58:5289-5304. [DOI: 10.1021/acs.inorgchem.9b00368] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
| | - Jing Su
- Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States
| | | | | | - Joshua Telser
- Department of Biological, Physical and Health Sciences, Roosevelt University, Chicago, Illinois 60605, United States
| | - Lukas Palatinus
- Institute of Physics, Czech Academy of Sciences, Na Slovance 2, 182 21 Prague 6, Czechia
| | | | - Ping Yang
- Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States
| | - Enrique R. Batista
- Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States
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15
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A Density Functional Theory-Based Scheme to Compute the Redox Potential of a Transition Metal Complex: Applications to Heme Compound. Molecules 2019; 24:molecules24040819. [PMID: 30823577 PMCID: PMC6412623 DOI: 10.3390/molecules24040819] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2018] [Revised: 02/18/2019] [Accepted: 02/21/2019] [Indexed: 12/23/2022] Open
Abstract
We estimated the redox potential of a model heme compound by using the combination of our density functionals with a computational scheme, which corrects the solvation energy to the normal solvent model. Among many density functionals, the LC-BOP12 functional gave the smallest mean absolute error of 0.16 V in the test molecular sets. The application of these methods revealed that the redox potential of a model heme can be controlled within 200 mV by changing the protonation state and even within 20 mV by the flipping of the ligand histidine. In addition, the redox potential depends on the inverse of the dielectric constant, which controls the surroundings. The computational results also imply that a system with a low dielectric constant avoids the charged molecule by controlling either the redox potential or the protonation system.
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16
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Rana A, Kumar Das P, Mondal B, Dey S, Crouthers D, Dey A. Investigation of Bridgehead Effects on Reduction Potential in Alkyl and Aryl Azadithiolate‐Bridged (µ‐SCH
2
XCH
2
S) [Fe(CO)
3
]
2
Synthetic Analogues of [FeFe]‐H
2
ase Active Site. Eur J Inorg Chem 2018. [DOI: 10.1002/ejic.201800335] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Atanu Rana
- Department of Inorganic Chemistry Indian Association for the Cultivation of Science 700032 Kolkata India
| | - Pradip Kumar Das
- Department of Inorganic Chemistry Indian Association for the Cultivation of Science 700032 Kolkata India
| | - Biswajit Mondal
- Department of Inorganic Chemistry Indian Association for the Cultivation of Science 700032 Kolkata India
| | - Subal Dey
- Department of Inorganic Chemistry Indian Association for the Cultivation of Science 700032 Kolkata India
| | | | - Abhishek Dey
- Department of Inorganic Chemistry Indian Association for the Cultivation of Science 700032 Kolkata India
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17
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Slater JW, Marguet SC, Monaco HA, Shafaat HS. Going beyond Structure: Nickel-Substituted Rubredoxin as a Mechanistic Model for the [NiFe] Hydrogenases. J Am Chem Soc 2018; 140:10250-10262. [PMID: 30016865 DOI: 10.1021/jacs.8b05194] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Jeffrey W. Slater
- The Ohio State University, 100 West 18th Avenue, Columbus, Ohio 43210, United States
| | - Sean C. Marguet
- The Ohio State University, 100 West 18th Avenue, Columbus, Ohio 43210, United States
| | - Haleigh A. Monaco
- The Ohio State University, 100 West 18th Avenue, Columbus, Ohio 43210, United States
| | - Hannah S. Shafaat
- The Ohio State University, 100 West 18th Avenue, Columbus, Ohio 43210, United States
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18
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Stromberg CJ, Heilweil EJ. Ultrafast Photodynamics of Cyano-Functionalized [FeFe] Hydrogenase Model Compounds. J Phys Chem A 2018; 122:4023-4030. [PMID: 29652502 PMCID: PMC6051340 DOI: 10.1021/acs.jpca.8b00661] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
[FeFe] hydrogenases are efficient enzymes that produce hydrogen gas under mild conditions. Synthetic model compounds containing all CO or mixed CO/PMe3 ligands were previously studied by us and others with ultrafast ultraviolet or visible pump-infrared probe spectroscopy in an effort to better understand the function and interactions of the active site with light. Studies of anionic species containing cyano groups, which more closely match the biological active site, have been elusive. In this work, two model compounds dissolved in room-temperature acetonitrile solution were examined: [Fe2(μ-S2C3H6)(CO)4(CN)2]2- (1) and [Fe2(μ-S2C2H4)(CO)4(CN)2]2- (2). These species exhibit long-lived transient signals consistent with loss of one CO ligand with potential isomerization of newly formed ground electronic state photoproducts, as previously observed with all-CO and CO/PMe3-containing models. We find no evidence for fast (ca. 150 ps) relaxation seen in the all-CO and CO/PMe3 compounds because of the absence of the metal-to-metal charge transfer band in the cyano-functionalized models. These results indicate that incorporation of cyano ligands may significantly alter the electronic properties and photoproducts produced immediately after photoexcitation, which may influence the catalytic activity of model compounds when attached to photosensitizers.
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Affiliation(s)
- Christopher J. Stromberg
- Department of Chemistry and Physics, Hood College, 401 Rosemont Avenue, Frederick, Maryland 21701-8524, United States
| | - Edwin J. Heilweil
- Engineering Physics Division, Physical Measurement Laboratory, National Institute of Standards and Technology, Gaithersburg, MD 20899-8443 United States
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19
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Kelley MP, Deblonde GJP, Su J, Booth CH, Abergel RJ, Batista ER, Yang P. Bond Covalency and Oxidation State of Actinide Ions Complexed with Therapeutic Chelating Agent 3,4,3-LI(1,2-HOPO). Inorg Chem 2018; 57:5352-5363. [DOI: 10.1021/acs.inorgchem.8b00345] [Citation(s) in RCA: 66] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Morgan P. Kelley
- Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87544, United States
| | - Gauthier J.-P. Deblonde
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Jing Su
- Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87544, United States
| | - Corwin H. Booth
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Rebecca J. Abergel
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Enrique R. Batista
- Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87544, United States
| | - Ping Yang
- Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87544, United States
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20
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McSkimming A, Su J, Cheisson T, Gau MR, Carroll PJ, Batista ER, Yang P, Schelter EJ. Coordination Chemistry of a Strongly-Donating Hydroxylamine with Early Actinides: An Investigation of Redox Properties and Electronic Structure. Inorg Chem 2018; 57:4387-4394. [DOI: 10.1021/acs.inorgchem.7b03238] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Alex McSkimming
- P. Roy and Diana T. Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, 231 S 34th Street, Philadelphia, Pennsylvania 19104, United States
| | - Jing Su
- Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States
| | - Thibault Cheisson
- P. Roy and Diana T. Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, 231 S 34th Street, Philadelphia, Pennsylvania 19104, United States
| | - Michael R. Gau
- P. Roy and Diana T. Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, 231 S 34th Street, Philadelphia, Pennsylvania 19104, United States
| | - Patrick J. Carroll
- P. Roy and Diana T. Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, 231 S 34th Street, Philadelphia, Pennsylvania 19104, United States
| | - Enrique R. Batista
- Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States
| | - Ping Yang
- Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States
| | - Eric J. Schelter
- P. Roy and Diana T. Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, 231 S 34th Street, Philadelphia, Pennsylvania 19104, United States
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21
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Photo-induced reduction of Cr6+ by the hybrid systems “CuII complex with Schiff base and TiO2”: dependence on irradiation wavelength. Russ Chem Bull 2018. [DOI: 10.1007/s11172-017-1981-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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22
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Puzzolo JL, Drusin SI, Daier VA, Signorella S, Moreno DM. Using theoretical calculations to predict the redox potential of mononuclear manganese complexes. NEW J CHEM 2018. [DOI: 10.1039/c8nj03254h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Prediction of redox potential allows chemists to rationally design metal complexes with a desired redox activity.
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Affiliation(s)
- Juan L. Puzzolo
- Instituto de Química Rosario (IQUIR, CONICET-UNR)
- Rosario S2002LRK
- Argentina
| | - Salvador I. Drusin
- Instituto de Biología Molecular y Celular de Rosario (IBR, CONICET-UNR)
- Ocampo y Esmeralda
- predio CCT
- Rosario 2000
- Argentina
| | - Verónica A. Daier
- Instituto de Química Rosario (IQUIR, CONICET-UNR)
- Rosario S2002LRK
- Argentina
- Área Química General e Inorgánica
- Facultad de Ciencias Bioquímicas y Farmacéuticas
| | - Sandra Signorella
- Instituto de Química Rosario (IQUIR, CONICET-UNR)
- Rosario S2002LRK
- Argentina
- Área Química General e Inorgánica
- Facultad de Ciencias Bioquímicas y Farmacéuticas
| | - Diego M. Moreno
- Instituto de Química Rosario (IQUIR, CONICET-UNR)
- Rosario S2002LRK
- Argentina
- Área Química General e Inorgánica
- Facultad de Ciencias Bioquímicas y Farmacéuticas
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23
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Arrigoni F, Bertini L, De Gioia L, Cingolani A, Mazzoni R, Zanotti V, Zampella G. Mechanistic Insight into Electrocatalytic H 2 Production by [Fe 2(CN){μ-CN(Me) 2}(μ-CO)(CO)(Cp) 2]: Effects of Dithiolate Replacement in [FeFe] Hydrogenase Models. Inorg Chem 2017; 56:13852-13864. [PMID: 29112805 DOI: 10.1021/acs.inorgchem.7b01954] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
DFT has been used to investigate viable mechanisms of the hydrogen evolution reaction (HER) electrocatalyzed by [Fe2(CN){μ-CN(Me)2}(μ-CO)(CO)(Cp)2] (1) in AcOH. Molecular details underlying the proposed ECEC electrochemical sequence have been studied, and the key functionalities of CN- and amino-carbyne ligands have been elucidated. After the first reduction, CN- works as a relay for the first proton from AcOH to the carbyne, with this ligand serving as the main electron acceptor for both reduction steps. After the second reduction, a second protonation occurs at CN- that forms a Fe(CNH) moiety: i.e., the acidic source for the H2 generation. The hydride (formally 2e/H+), necessary to the heterocoupling with H+ is thus provided by the μ-CN(Me)2 ligand and not by Fe centers, as occurs in typical L6Fe2S2 derivatives modeling the hydrogenase active site. It is remarkable, in this regard, that CN- plays a role more subtle than that previously expected (increasing electron density at Fe atoms). In addition, the role of AcOH in shuttling protons from CN- to CN(Me)2 is highlighted. The incompetence for the HER of the related species [Fe2{μ-CN(Me)2}(μ-CO)(CO)2(Cp)2]+ (2+) has been investigated and attributed to the loss of proton responsiveness caused by CN- replacement with CO. In the context of hydrogenase mimicry, an implication of this study is that the dithiolate strap, normally present in all synthetic models, can be removed from the Fe2 core without loss of HER, but the redox and acid-base processes underlying turnover switch from a metal-based to a ligand-based chemistry. The versatile nature of the carbyne, once incorporated in the Fe2 scaffold, could be exploited to develop more active and robust catalysts for the HER.
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Affiliation(s)
- Federica Arrigoni
- Department of Biotechnology and Biosciences, University of Milan-Bicocca , Piazza della Scienza 2, 20126 Milan, Italy
| | - Luca Bertini
- Department of Biotechnology and Biosciences, University of Milan-Bicocca , Piazza della Scienza 2, 20126 Milan, Italy
| | - Luca De Gioia
- Department of Biotechnology and Biosciences, University of Milan-Bicocca , Piazza della Scienza 2, 20126 Milan, Italy
| | - Andrea Cingolani
- Department of Chimica Industriale "Toso Montanari", University of Bologna , V. le Risorgimento 4, 40136 Bologna, Italy
| | - Rita Mazzoni
- Department of Chimica Industriale "Toso Montanari", University of Bologna , V. le Risorgimento 4, 40136 Bologna, Italy
| | - Valerio Zanotti
- Department of Chimica Industriale "Toso Montanari", University of Bologna , V. le Risorgimento 4, 40136 Bologna, Italy
| | - Giuseppe Zampella
- Department of Biotechnology and Biosciences, University of Milan-Bicocca , Piazza della Scienza 2, 20126 Milan, Italy
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24
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Roy S, Sharma B, Pécaut J, Simon P, Fontecave M, Tran PD, Derat E, Artero V. Molecular Cobalt Complexes with Pendant Amines for Selective Electrocatalytic Reduction of Carbon Dioxide to Formic Acid. J Am Chem Soc 2017; 139:3685-3696. [PMID: 28206761 DOI: 10.1021/jacs.6b11474] [Citation(s) in RCA: 187] [Impact Index Per Article: 26.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
We report here on a new series of CO2-reducing molecular catalysts based on Earth-abundant elements that are very selective for the production of formic acid in dimethylformamide (DMF)/water mixtures (Faradaic efficiency of 90 ± 10%) at moderate overpotentials (500-700 mV in DMF measured at the middle of the catalytic wave). The [CpCo(PR2NR'2)I]+ compounds contain diphosphine ligands, PR2NR'2, with two pendant amine residues that act as proton relays during CO2-reduction catalysis and tune their activity. Four different PR2NR'2 ligands with cyclohexyl or phenyl substituents on phosphorus and benzyl or phenyl substituents on nitrogen were employed, and the compound with the most electron-donating phosphine ligand and the most basic amine functions performs best among the series, with turnover frequency >1000 s-1. State-of-the-art benchmarking of catalytic performances ranks this new class of cobalt-based complexes among the most promising CO2-to-formic acid reducing catalysts developed to date; addressing the stability issues would allow further improvement. Mechanistic studies and density functional theory simulations confirmed the role of amine groups for stabilizing key intermediates through hydrogen bonding with water molecules during hydride transfer from the Co center to the CO2 molecule.
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Affiliation(s)
- Souvik Roy
- Laboratoire de Chimie et Biologie des Métaux, Université Grenoble Alpes , CEA, CNRS, 17 rue des Martyrs, 38000 Grenoble, France
| | - Bhaskar Sharma
- Institut Parisien de Chimie Moléculaire, UMR 8232, Sorbonne Universités , UPMC Univ. Paris 06, CNRS, 75005 Paris, France
| | - Jacques Pécaut
- Reconnaissance Ionique et Chimie de Coordination, DRF-INAC-SyMMES, Université Grenoble Alpes , CNRS, CEA, 17 rue des Martyrs, 38000 Grenoble, France
| | - Philippe Simon
- Laboratoire de Chimie des Processus Biologiques, Collège de France, Université Pierre et Marie Curie , CNRS UMR 8229, 11 place Marcelin Berthelot, 75005 Paris, France
| | - Marc Fontecave
- Laboratoire de Chimie des Processus Biologiques, Collège de France, Université Pierre et Marie Curie , CNRS UMR 8229, 11 place Marcelin Berthelot, 75005 Paris, France
| | - Phong D Tran
- Laboratoire de Chimie et Biologie des Métaux, Université Grenoble Alpes , CEA, CNRS, 17 rue des Martyrs, 38000 Grenoble, France.,Department of Advanced Materials Science and Nanotechnology, University of Science and Technology of Hanoi, Vietnam Academy of Science and Technology , 18 Hoang Quoc Viet, Cau Giay, 122102 Hanoi, Vietnam
| | - Etienne Derat
- Institut Parisien de Chimie Moléculaire, UMR 8232, Sorbonne Universités , UPMC Univ. Paris 06, CNRS, 75005 Paris, France
| | - Vincent Artero
- Laboratoire de Chimie et Biologie des Métaux, Université Grenoble Alpes , CEA, CNRS, 17 rue des Martyrs, 38000 Grenoble, France
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25
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Rizvi MA, Mane M, Khuroo MA, Peerzada GM. Computational survey of ligand properties on iron(III)–iron(II) redox potential: exploring natural attenuation of nitroaromatic compounds. MONATSHEFTE FUR CHEMIE 2016. [DOI: 10.1007/s00706-016-1813-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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26
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Schilter D, Camara JM, Huynh MT, Hammes-Schiffer S, Rauchfuss TB. Hydrogenase Enzymes and Their Synthetic Models: The Role of Metal Hydrides. Chem Rev 2016; 116:8693-749. [PMID: 27353631 PMCID: PMC5026416 DOI: 10.1021/acs.chemrev.6b00180] [Citation(s) in RCA: 397] [Impact Index Per Article: 49.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Hydrogenase enzymes efficiently process H2 and protons at organometallic FeFe, NiFe, or Fe active sites. Synthetic modeling of the many H2ase states has provided insight into H2ase structure and mechanism, as well as afforded catalysts for the H2 energy vector. Particularly important are hydride-bearing states, with synthetic hydride analogues now known for each hydrogenase class. These hydrides are typically prepared by protonation of low-valent cores. Examples of FeFe and NiFe hydrides derived from H2 have also been prepared. Such chemistry is more developed than mimicry of the redox-inactive monoFe enzyme, although functional models of the latter are now emerging. Advances in physical and theoretical characterization of H2ase enzymes and synthetic models have proven key to the study of hydrides in particular, and will guide modeling efforts toward more robust and active species optimized for practical applications.
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Affiliation(s)
- David Schilter
- Center for Multidimensional Carbon Materials, Institute for Basic Science (IBS), Ulsan 44919, Republic of Korea
- Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
| | - James M. Camara
- Department of Chemistry, Yeshiva University, 500 West 185th Street, New York, New York 10033, United States
| | - Mioy T. Huynh
- Department of Chemistry, University of Illinois at Urbana–Champaign, 600 South Mathews Avenue, Urbana, Illinois 61801, United States
| | - Sharon Hammes-Schiffer
- Department of Chemistry, University of Illinois at Urbana–Champaign, 600 South Mathews Avenue, Urbana, Illinois 61801, United States
| | - Thomas B. Rauchfuss
- Department of Chemistry, University of Illinois at Urbana–Champaign, 600 South Mathews Avenue, Urbana, Illinois 61801, United States
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27
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Isegawa M, Neese F, Pantazis DA. Ionization Energies and Aqueous Redox Potentials of Organic Molecules: Comparison of DFT, Correlated ab Initio Theory and Pair Natural Orbital Approaches. J Chem Theory Comput 2016; 12:2272-84. [PMID: 27065224 DOI: 10.1021/acs.jctc.6b00252] [Citation(s) in RCA: 70] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
The calculation of redox potentials involves large energetic terms arising from gas phase ionization energies, thermodynamic contributions, and solvation energies of the reduced and oxidized species. In this work we study the performance of a wide range of wave function and density functional theory methods for the prediction of ionization energies and aqueous one-electron oxidation potentials of a set of 19 organic molecules. Emphasis is placed on evaluating methods that employ the computationally efficient local pair natural orbital (LPNO) approach, as well as several implementations of coupled cluster theory and explicitly correlated F12 methods. The electronic energies are combined with implicit solvation models for the solvation energies. With the exception of MP2 and its variants, which suffer from enormous errors arising at least partially from the poor Hartree-Fock reference, ionization energies can be systematically predicted with average errors below 0.1 eV for most of the correlated wave function based methods studies here, provided basis set extrapolation is performed. LPNO methods are the most efficient way to achieve this type of accuracy. DFT methods show in general larger errors and suffer from inconsistent behavior. The only exception is the M06-2X functional which is found to be competitive with the best LPNO-based approaches for ionization energies. Importantly, the limiting factor for the calculation of accurate redox potentials is the solvation energy. The errors in the predicted solvation energies by all continuum solvation models tested in this work dominate the final computed reduction potential, resulting in average errors typically in excess of 0.3 V and hence obscuring the gains that arise from choosing a more accurate electronic structure method.
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Affiliation(s)
- Miho Isegawa
- Max Planck Institute for Chemical Energy Conversion, Stiftrasse 34-38, 45470 Mülheim and der Ruhr, Germany
| | - Frank Neese
- Max Planck Institute for Chemical Energy Conversion, Stiftrasse 34-38, 45470 Mülheim and der Ruhr, Germany
| | - Dimitrios A Pantazis
- Max Planck Institute for Chemical Energy Conversion, Stiftrasse 34-38, 45470 Mülheim and der Ruhr, Germany
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28
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Filippi G, Arrigoni F, Bertini L, De Gioia L, Zampella G. DFT Dissection of the Reduction Step in H2 Catalytic Production by [FeFe]-Hydrogenase-Inspired Models: Can the Bridging Hydride Become More Reactive Than the Terminal Isomer? Inorg Chem 2015; 54:9529-42. [DOI: 10.1021/acs.inorgchem.5b01495] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Giulia Filippi
- Department of Biotechnologies
and Biosciences, University of Milano-Bicocca, Piazza della Scienza 2, 20126 Milan, Italy
| | - Federica Arrigoni
- Department of Biotechnologies
and Biosciences, University of Milano-Bicocca, Piazza della Scienza 2, 20126 Milan, Italy
| | - Luca Bertini
- Department of Biotechnologies
and Biosciences, University of Milano-Bicocca, Piazza della Scienza 2, 20126 Milan, Italy
| | - Luca De Gioia
- Department of Biotechnologies
and Biosciences, University of Milano-Bicocca, Piazza della Scienza 2, 20126 Milan, Italy
| | - Giuseppe Zampella
- Department of Biotechnologies
and Biosciences, University of Milano-Bicocca, Piazza della Scienza 2, 20126 Milan, Italy
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29
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Demissie TB, Ruud K, Hansen JH. DFT as a Powerful Predictive Tool in Photoredox Catalysis: Redox Potentials and Mechanistic Analysis. Organometallics 2015. [DOI: 10.1021/acs.organomet.5b00582] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Taye B. Demissie
- Centre for Theoretical and Computational
Chemistry, ‡Department of Chemistry, UiT − The Arctic University of Norway, 9037 Tromsø, Norway
| | - Kenneth Ruud
- Centre for Theoretical and Computational
Chemistry, ‡Department of Chemistry, UiT − The Arctic University of Norway, 9037 Tromsø, Norway
| | - Jørn H. Hansen
- Centre for Theoretical and Computational
Chemistry, ‡Department of Chemistry, UiT − The Arctic University of Norway, 9037 Tromsø, Norway
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30
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Bedin M, Karim A, Reitti M, Carlsson ACC, Topić F, Cetina M, Pan F, Havel V, Al-Ameri F, Sindelar V, Rissanen K, Gräfenstein J, Erdélyi M. Counterion influence on the N-I-N halogen bond. Chem Sci 2015; 6:3746-3756. [PMID: 29218144 PMCID: PMC5707496 DOI: 10.1039/c5sc01053e] [Citation(s) in RCA: 77] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2015] [Accepted: 04/20/2015] [Indexed: 12/13/2022] Open
Abstract
A detailed investigation of the influence of counterions on the [N-I-N]+ halogen bond in solution, in the solid state and in silico is presented. Translational diffusion coefficients indicate close attachment of counterions to the cationic, three-center halogen bond in dichloromethane solution. Isotopic perturbation of equilibrium NMR studies performed on isotopologue mixtures of regioselectively deuterated and nondeuterated analogues of the model system showed that the counterion is incapable of altering the symmetry of the [N-I-N]+ halogen bond. This symmetry remains even in the presence of an unfavorable geometric restraint. A high preference for the symmetric geometry was found also in the solid state by single crystal X-ray crystallography. Molecular systems encompassing weakly coordinating counterions behave similarly to the corresponding silver(i) centered coordination complexes. In contrast, systems possessing moderately or strongly coordinating anions show a distinctly different behavior. Such silver(i) complexes are converted into multi-coordinate geometries with strong Ag-O bonds, whereas the iodine centered systems remain linear and lack direct charge transfer interaction with the counterion, as verified by 15N NMR and DFT computation. This suggests that the [N-I-N]+ halogen bond may not be satisfactorily described in terms of a pure coordination bond typical of transition metal complexes, but as a secondary bond with a substantial charge-transfer character.
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Affiliation(s)
- Michele Bedin
- Department of Chemistry and Molecular Biology , University of Gothenburg , SE-412 96 Gothenburg , Sweden . ; Tel: +46-31-786 9033
| | - Alavi Karim
- Department of Chemistry and Molecular Biology , University of Gothenburg , SE-412 96 Gothenburg , Sweden . ; Tel: +46-31-786 9033
| | - Marcus Reitti
- Department of Chemistry and Molecular Biology , University of Gothenburg , SE-412 96 Gothenburg , Sweden . ; Tel: +46-31-786 9033
| | - Anna-Carin C Carlsson
- Department of Chemistry and Molecular Biology , University of Gothenburg , SE-412 96 Gothenburg , Sweden . ; Tel: +46-31-786 9033
| | - Filip Topić
- University of Jyvaskyla , Department of Chemistry , Nanoscience Center , P.O. Box. 35, FI-40014 University of Jyvaskyla , Finland
| | - Mario Cetina
- University of Jyvaskyla , Department of Chemistry , Nanoscience Center , P.O. Box. 35, FI-40014 University of Jyvaskyla , Finland
- Department of Applied Chemistry , Faculty of Textile Technology , University of Zagreb , Prilaz baruna Filipovića 28a , HR-10000 Zagreb , Croatia
| | - Fangfang Pan
- University of Jyvaskyla , Department of Chemistry , Nanoscience Center , P.O. Box. 35, FI-40014 University of Jyvaskyla , Finland
| | - Vaclav Havel
- Department of Chemistry and RECETOX , Masaryk University , Kamenice 5 , 625 00 Brno , Czech Republic
| | - Fatima Al-Ameri
- Department of Chemistry and Molecular Biology , University of Gothenburg , SE-412 96 Gothenburg , Sweden . ; Tel: +46-31-786 9033
| | - Vladimir Sindelar
- Department of Chemistry and RECETOX , Masaryk University , Kamenice 5 , 625 00 Brno , Czech Republic
| | - Kari Rissanen
- University of Jyvaskyla , Department of Chemistry , Nanoscience Center , P.O. Box. 35, FI-40014 University of Jyvaskyla , Finland
| | - Jürgen Gräfenstein
- Department of Chemistry and Molecular Biology , University of Gothenburg , SE-412 96 Gothenburg , Sweden . ; Tel: +46-31-786 9033
| | - Máté Erdélyi
- Department of Chemistry and Molecular Biology , University of Gothenburg , SE-412 96 Gothenburg , Sweden . ; Tel: +46-31-786 9033
- The Swedish NMR Centre , Medicinaregatan 5 , SE-413 90 Gothenburg , Sweden
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31
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Suntharalingam K, Awuah SG, Bruno PM, Johnstone TC, Wang F, Lin W, Zheng YR, Page JE, Hemann MT, Lippard SJ. Necroptosis-inducing rhenium(V) oxo complexes. J Am Chem Soc 2015; 137:2967-74. [PMID: 25698398 PMCID: PMC4702498 DOI: 10.1021/ja511978y] [Citation(s) in RCA: 72] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Rhenium(V) oxo complexes of general formula [ReO(OMe)(N^N)Cl2], where N^N = 4,7-diphenyl-1,10-phenanthroline, 1, or 3,4,7,8-tetramethyl-1,10-phenanthroline, 2, effectively kill cancer cells by triggering necroptosis, a non-apoptotic form of cell death. Both complexes evoke necrosome (RIP1-RIP3)-dependent intracellular reactive oxygen species (ROS) production and propidium iodide uptake. The complexes also induce mitochondrial membrane potential depletion, a possible downstream effect of ROS production. Apparently, 1 and 2 are the first rhenium complexes to evoke cellular events consistent with programmed necrosis in cancer cells. Furthermore, 1 and 2 display low acute toxicity in C57BL/6 mice and reasonable stability in fresh human blood.
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Affiliation(s)
- Kogularamanan Suntharalingam
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts, 02139, United States
- Department of Chemistry, King’s College London, London, SE1 1DB, United Kingdom
| | - Samuel G. Awuah
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts, 02139, United States
| | - Peter M. Bruno
- The Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, Massachusetts, 02139, United States
| | - Timothy C. Johnstone
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts, 02139, United States
| | - Fang Wang
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts, 02139, United States
| | - Wei Lin
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts, 02139, United States
| | - Yao-Rong Zheng
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts, 02139, United States
| | - Julia E. Page
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts, 02139, United States
| | - Michael T. Hemann
- The Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, Massachusetts, 02139, United States
| | - Stephen J. Lippard
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts, 02139, United States
- The Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, Massachusetts, 02139, United States
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Matsui T, Kitagawa Y, Okumura M, Shigeta Y. Accurate standard hydrogen electrode potential and applications to the redox potentials of vitamin C and NAD/NADH. J Phys Chem A 2015; 119:369-76. [PMID: 25514626 DOI: 10.1021/jp508308y] [Citation(s) in RCA: 84] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
We computationally evaluated the standard hydrogen electrode (SHE) potential in aqueous phase and the Gibbs energy of a proton from the experimental pKa values of alcohol molecules. From the "golden standard" CCSD(T)/aug-cc-pVTZ level calculation, we estimated the SHE potential as 4.48 V, which is very close to the IUPAC-recommended experimental value of 4.44 V. As applications to the Gaussian-3 (G3) methods, which also reproduce the "golden standard" level calculations, we computed various pKa values and redox potentials for a vitamin series. For vitamin C, we support the experimental result of +0.35 V and predict the pKa value of d-ascorbic acid to be 3.7-3.9. Using a model molecule for nicotinamide adenine dinucleotide (NAD), we reproduced the redox potential and determined the order of the proton/electron addition, based on both the proton affinity and redox potential.
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Affiliation(s)
- Toru Matsui
- Department of Chemistry, Graduate School of Science, Osaka University , 1-1 Machikaneyama, Toyonaka, Osaka 560-0043, Japan
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Chouffai D, Capon JF, De Gioia L, Pétillon FY, Schollhammer P, Talarmin J, Zampella G. A Diferrous Dithiolate as a Model of the Elusive Hoxinact State of the [FeFe] Hydrogenases: An Electrochemical and Theoretical Dissection of Its Redox Chemistry. Inorg Chem 2014; 54:299-311. [DOI: 10.1021/ic5024746] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Dounia Chouffai
- UMR CNRS 6521 Chimie, Electrochimie Moléculaires
et Chimie Analytique, Université de Bretagne Occidentale, UFR Sciences et Techniques, CS 93837, 29238 Brest-Cedex 3, France
| | - Jean-François Capon
- UMR CNRS 6521 Chimie, Electrochimie Moléculaires
et Chimie Analytique, Université de Bretagne Occidentale, UFR Sciences et Techniques, CS 93837, 29238 Brest-Cedex 3, France
| | - Luca De Gioia
- Department
of Biotechnology and Bioscience, University of Milano-Bicocca, Piazza
della Scienza 2, 20126 Milan, Italy
| | - François Y. Pétillon
- UMR CNRS 6521 Chimie, Electrochimie Moléculaires
et Chimie Analytique, Université de Bretagne Occidentale, UFR Sciences et Techniques, CS 93837, 29238 Brest-Cedex 3, France
| | - Philippe Schollhammer
- UMR CNRS 6521 Chimie, Electrochimie Moléculaires
et Chimie Analytique, Université de Bretagne Occidentale, UFR Sciences et Techniques, CS 93837, 29238 Brest-Cedex 3, France
| | - Jean Talarmin
- UMR CNRS 6521 Chimie, Electrochimie Moléculaires
et Chimie Analytique, Université de Bretagne Occidentale, UFR Sciences et Techniques, CS 93837, 29238 Brest-Cedex 3, France
| | - Giuseppe Zampella
- Department
of Biotechnology and Bioscience, University of Milano-Bicocca, Piazza
della Scienza 2, 20126 Milan, Italy
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Newman GL, Rahman JMA, Gluyas JBG, Yufit DS, Howard JAK, Low PJ. Alkynyl-Phosphine Substituted Fe2S2 Clusters: Synthesis, Structure and Spectroelectrochemical Characterization of a Cluster with a Class III Mixed-Valence [FeFe]3+ Core. J CLUST SCI 2014. [DOI: 10.1007/s10876-014-0790-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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35
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Theoretical Predictions of Redox Potentials of Fischer-Type Chromium Aminocarbene Complexes. Organometallics 2014. [DOI: 10.1021/om500259u] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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Marenich AV, Ho J, Coote ML, Cramer CJ, Truhlar DG. Computational electrochemistry: prediction of liquid-phase reduction potentials. Phys Chem Chem Phys 2014; 16:15068-106. [PMID: 24958074 DOI: 10.1039/c4cp01572j] [Citation(s) in RCA: 314] [Impact Index Per Article: 31.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
This article reviews recent developments and applications in the area of computational electrochemistry. Our focus is on predicting the reduction potentials of electron transfer and other electrochemical reactions and half-reactions in both aqueous and nonaqueous solutions. Topics covered include various computational protocols that combine quantum mechanical electronic structure methods (such as density functional theory) with implicit-solvent models, explicit-solvent protocols that employ Monte Carlo or molecular dynamics simulations (for example, Car-Parrinello molecular dynamics using the grand canonical ensemble formalism), and the Marcus theory of electronic charge transfer. We also review computational approaches based on empirical relationships between molecular and electronic structure and electron transfer reactivity. The scope of the implicit-solvent protocols is emphasized, and the present status of the theory and future directions are outlined.
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Affiliation(s)
- Aleksandr V Marenich
- Department of Chemistry, Chemical Theory Center, and Supercomputing Institute, University of Minnesota, 207 Pleasant Street S.E., Minneapolis, MN 55455-0431, USA.
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Computational Redox Potential Predictions: Applications to Inorganic and Organic Aqueous Complexes, and Complexes Adsorbed to Mineral Surfaces. MINERALS 2014. [DOI: 10.3390/min4020345] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Castro L, Bühl M. Calculations of One-Electron Redox Potentials of Oxoiron(IV) Porphyrin Complexes. J Chem Theory Comput 2013; 10:243-51. [DOI: 10.1021/ct400975w] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Ludovic Castro
- School of Chemistry, University of St. Andrews, North Haugh, St. Andrews, Fife, KY16 9ST, Scotland, United Kingdom
| | - Michael Bühl
- School of Chemistry, University of St. Andrews, North Haugh, St. Andrews, Fife, KY16 9ST, Scotland, United Kingdom
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Bhattacharjee A, Andreiadis ES, Chavarot-Kerlidou M, Fontecave M, Field MJ, Artero V. A Computational Study of the Mechanism of Hydrogen Evolution by Cobalt(Diimine-Dioxime) Catalysts. Chemistry 2013; 19:15166-74. [DOI: 10.1002/chem.201301860] [Citation(s) in RCA: 81] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2013] [Indexed: 12/13/2022]
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40
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Wang H, Liu X. Intramolecular hydrogen bonding interaction, a mechanism for the bridging linkages to exert electronic influence on diiron models of [FeFe]-hydrogenase. Inorganica Chim Acta 2013. [DOI: 10.1016/j.ica.2013.07.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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41
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Matsui T, Kitagawa Y, Shigeta Y, Okumura M. A Density Functional Theory Based Protocol to Compute the Redox Potential of Transition Metal Complex with the Correction of Pseudo-Counterion: General Theory and Applications. J Chem Theory Comput 2013; 9:2974-80. [DOI: 10.1021/ct4002653] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Toru Matsui
- Department of Chemistry, Graduate
School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka,
Osaka 560-0043, Japan
| | - Yasutaka Kitagawa
- Department of Chemistry, Graduate
School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka,
Osaka 560-0043, Japan
| | - Yasuteru Shigeta
- Department
of Materials Engineering
Science, Graduate School of Engineering Science, Osaka University,
1-3 Machikaneyama, Toyonaka, Osaka 560-8531, Japan
- Core Research for Evolutional
Science and Technology (CREST), Japan Science and Technology (JST)
Agency, Kawaguchi, 332-0012 Saitama, Japan
| | - Mitsutaka Okumura
- Department of Chemistry, Graduate
School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka,
Osaka 560-0043, Japan
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Vaquer L, Miró P, Sala X, Bozoglian F, Masllorens E, Benet-Buchholz J, Fontrodona X, Parella T, Romero I, Roglans A, Rodríguez M, Bo C, Llobet A. Understanding Electronic Ligand Perturbation over Successive Metal-Based Redox Potentials in Mononuclear Ruthenium-Aqua Complexes. Chempluschem 2013. [DOI: 10.1002/cplu.201200268] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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43
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Gao H, Huang J, Chen L, Liu R, Chen J. Synthesis, characterization and computational study of heterobimetallic CoFe complexes for mimicking hydrogenase. RSC Adv 2013. [DOI: 10.1039/c2ra22388k] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Tian YH, Goff GS, Runde WH, Batista ER. Exploring Electrochemical Windows of Room-Temperature Ionic Liquids: A Computational Study. J Phys Chem B 2012; 116:11943-52. [DOI: 10.1021/jp303915c] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yong-Hui Tian
- Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico
87545, United States
| | - George S. Goff
- Chemistry
Division, Los Alamos National Laboratory, Los Alamos, New Mexico
87545, United States
| | - Wolfgang H. Runde
- Chemistry
Division, Los Alamos National Laboratory, Los Alamos, New Mexico
87545, United States
| | - Enrique R. Batista
- Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico
87545, United States
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Leidel N, Chernev P, Havelius KGV, Schwartz L, Ott S, Haumann M. Electronic Structure of an [FeFe] Hydrogenase Model Complex in Solution Revealed by X-ray Absorption Spectroscopy Using Narrow-Band Emission Detection. J Am Chem Soc 2012; 134:14142-57. [DOI: 10.1021/ja304970p] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Nils Leidel
- Institut für Experimentalphysik, Freie Universität Berlin, 14195 Berlin, Germany
| | - Petko Chernev
- Institut für Experimentalphysik, Freie Universität Berlin, 14195 Berlin, Germany
| | - Kajsa G. V. Havelius
- Institut für Experimentalphysik, Freie Universität Berlin, 14195 Berlin, Germany
| | - Lennart Schwartz
- Department of Chemistry, Uppsala University, Ångström Laboratories,
75120 Uppsala, Sweden
| | - Sascha Ott
- Department of Chemistry, Uppsala University, Ångström Laboratories,
75120 Uppsala, Sweden
| | - Michael Haumann
- Institut für Experimentalphysik, Freie Universität Berlin, 14195 Berlin, Germany
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46
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Leidel N, Chernev P, Havelius KGV, Ezzaher S, Ott S, Haumann M. Site-Selective X-ray Spectroscopy on an Asymmetric Model Complex of the [FeFe] Hydrogenase Active Site. Inorg Chem 2012; 51:4546-59. [DOI: 10.1021/ic2024154] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Nils Leidel
- Freie Universität Berlin, Institut für Experimentalphysik, 14195
Berlin, Germany
| | - Petko Chernev
- Freie Universität Berlin, Institut für Experimentalphysik, 14195
Berlin, Germany
| | - Kajsa G. V. Havelius
- Freie Universität Berlin, Institut für Experimentalphysik, 14195
Berlin, Germany
| | - Salah Ezzaher
- University of Uppsala, Department of Chemistry, Ångström
Laboratories, 75120
Uppsala, Sweden
| | - Sascha Ott
- University of Uppsala, Department of Chemistry, Ångström
Laboratories, 75120
Uppsala, Sweden
| | - Michael Haumann
- Freie Universität Berlin, Institut für Experimentalphysik, 14195
Berlin, Germany
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47
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Cappillino PJ, McNally JS, Wang F, Caradonna JP. The effect of varying carboxylate ligation on the electronic environment of N2Ox(x = 1–3) nonheme iron: A DFT analysis. Dalton Trans 2012; 41:474-83. [DOI: 10.1039/c1dt11199j] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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48
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Camarada MB, Jaque P, Díaz FR, del Valle MA. Oxidation potential of thiophene oligomers: Theoretical and experimental approach. ACTA ACUST UNITED AC 2011. [DOI: 10.1002/polb.22360] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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49
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Sviatenko L, Isayev O, Gorb L, Hill F, Leszczynski J. Toward robust computational electrochemical predicting the environmental fate of organic pollutants. J Comput Chem 2011; 32:2195-203. [DOI: 10.1002/jcc.21803] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2011] [Revised: 02/23/2011] [Accepted: 03/06/2011] [Indexed: 11/05/2022]
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50
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Electronic structure calculation study of metal complexes with a phytosiderophore mugineic acid. Inorganica Chim Acta 2011. [DOI: 10.1016/j.ica.2011.01.091] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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