1
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Sun H, Liu X, Li Y, Zhang F, Huang X, Sun C, Huang F. Mechanistic insights of electrocatalytic CO 2 reduction by Mn complexes: synergistic effects of the ligands. Dalton Trans 2024; 53:1663-1672. [PMID: 38168800 DOI: 10.1039/d3dt03453d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2024]
Abstract
The electrocatalytic mechanisms of CO2 reduction catalyzed by pyridine-oxazoline (pyrox)-based Mn catalysts were investigated by DFT calculations. In-depth comparative analyses of pyrox-based and bipyridine-based Mn complexes were carried out. C-OH cleavage is the rate-determining step for both the protonation-first path and the reduction-first path. The free energy of CO2 activation (ΔG1) and the electrons donated by CO ligands in this step are effective descriptors in regulating the C-OH cleavage barrier. The reduction of carboxylate complex 6 (E6) is the potential-determining step for the reduction-first path. Meanwhile, for the protonation-first path, the initial generation (E2) or the regeneration (E8) of active catalyst might be potential-determining. Hirshfeld charge and orbital contribution analysis indicate that E6 is definitely based on the heterocyclic ligand and E2 is related to both the heterocyclic ligand and three CO ligands. Therefore, replacement of the CO ligand by a stronger electron donating ligand can effectively boost the catalytic activity of CO2 reduction without increasing the overpotential in the reduction-first path. This hypothesis is supported by the mechanism calculations of the Mn complex in which the axial CO ligand is replaced by a pyridine or PMe3.
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Affiliation(s)
- Haitao Sun
- Department of Assets and Laboratory Management, College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan 250014, P. R. China.
| | - Xueqing Liu
- Department of Assets and Laboratory Management, College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan 250014, P. R. China.
| | - Yafeng Li
- Department of Assets and Laboratory Management, College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan 250014, P. R. China.
| | - Fang Zhang
- Department of Assets and Laboratory Management, College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan 250014, P. R. China.
| | - Xiuxiu Huang
- Department of Assets and Laboratory Management, College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan 250014, P. R. China.
| | - Chuanzhi Sun
- Department of Assets and Laboratory Management, College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan 250014, P. R. China.
| | - Fang Huang
- Department of Assets and Laboratory Management, College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan 250014, P. R. China.
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2
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Cohen KY, Nedd DG, Evans R, Bocarsly AB. Mechanistic insights into CO 2 conversion to CO using cyano manganese complexes. Dalton Trans 2023. [PMID: 37183860 DOI: 10.1039/d3dt00891f] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
Without the use of a photosensitizer, [Mn(bpy)(CO)3(CN)] (MnCN) can photochemically form [Mn(bpy)(CO)3]-, the active species for CO2 reduction. While cases of the axial X-ligand dissociating upon irradiation of fac-[M(N-N)(CO)3X] complexes (M = Mn or Re; N-N = bipyridine (bpy) ligand; X = halogen or pseudohalogen) are well documented, the axial cyanide ligand is retained when either [Mn(bpy)(CO)3(CN)] or [Mn(mesbpy)(CO)3(CN)], MnCN(mesbpy), are irradiated anaerobically. Infrared and UV-vis spectroscopies indicate the formation of [Mn(bpy)(CO)2(MeCN)(CN)] (s-MnCN) as the primary product during the irradiation of MnCN. An in-depth analysis of the photochemical mechanism for the formation of [Mn(bpy)(CO)3]- from MnCN is presented. MnCN(mesbpy) is too sterically hindered to undergo the same photochemical mechanism as MnCN. However, MnCN(mesbpy) is found to be electrocatalytically active for CO2 reduction to CO. Thus providing an interesting distinction between photochemical and electrochemical charge transfer.
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Affiliation(s)
- Kailyn Y Cohen
- Department of Chemistry, Frick Laboratory, Princeton University, Princeton, New Jersey, USA.
| | - Delaan G Nedd
- Department of Chemistry, Frick Laboratory, Princeton University, Princeton, New Jersey, USA.
| | - Rebecca Evans
- Department of Chemistry, Frick Laboratory, Princeton University, Princeton, New Jersey, USA.
| | - Andrew B Bocarsly
- Department of Chemistry, Frick Laboratory, Princeton University, Princeton, New Jersey, USA.
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3
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N-heterocyclic carbene-pyridine ligand coordinated Mo(II) complexes catalyzed synthesis of cyclic carbonates from carbon dioxide and epoxides. J CO2 UTIL 2023. [DOI: 10.1016/j.jcou.2022.102384] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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4
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Lodh J, Paul S, Sun H, Song L, Schöfberger W, Roy S. Electrochemical organic reactions: A tutorial review. Front Chem 2023; 10:956502. [PMID: 36704620 PMCID: PMC9871948 DOI: 10.3389/fchem.2022.956502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Accepted: 12/07/2022] [Indexed: 01/12/2023] Open
Abstract
Although the core of electrochemistry involves simple oxidation and reduction reactions, it can be complicated in real electrochemical organic reactions. The principles used in electrochemical reactions have been derived using physical organic chemistry, which drives other organic/inorganic reactions. This review mainly comprises two themes: the first discusses the factors that help optimize an electrochemical reaction, including electrodes, supporting electrolytes, and electrochemical cell design, and the second outlines studies conducted in the field over a period of 10 years. Electrochemical reactions can be used as a versatile tool for synthetically important reactions by modifying the constant electrolysis current.
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Affiliation(s)
- Joyeeta Lodh
- Eco-Friendly Applied Materials Laboratory (EFAML), Materials Science Centre, Department of Chemical Sciences, Mohanpur Campus, Indian Institute of Science, Education and Research, Kolkata, West Bengal, India
| | - Shounik Paul
- Eco-Friendly Applied Materials Laboratory (EFAML), Materials Science Centre, Department of Chemical Sciences, Mohanpur Campus, Indian Institute of Science, Education and Research, Kolkata, West Bengal, India
| | - He Sun
- Institute of Organic Chemistry, Laboratory for Sustainable Chemistry and Catalysis (LSusCat), Johannes Kepler University (JKU), Linz, Austria
| | - Luyang Song
- Institute of Organic Chemistry, Laboratory for Sustainable Chemistry and Catalysis (LSusCat), Johannes Kepler University (JKU), Linz, Austria
| | - Wolfgang Schöfberger
- Institute of Organic Chemistry, Laboratory for Sustainable Chemistry and Catalysis (LSusCat), Johannes Kepler University (JKU), Linz, Austria,*Correspondence: Wolfgang Schöfberger, ; Soumyajit Roy,
| | - Soumyajit Roy
- Eco-Friendly Applied Materials Laboratory (EFAML), Materials Science Centre, Department of Chemical Sciences, Mohanpur Campus, Indian Institute of Science, Education and Research, Kolkata, West Bengal, India,*Correspondence: Wolfgang Schöfberger, ; Soumyajit Roy,
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5
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Florian J, Cole JM. Analyzing Structure-Activity Variations for Mn-Carbonyl Complexes in the Reduction of CO 2 to CO. Inorg Chem 2023; 62:318-335. [PMID: 36541860 PMCID: PMC9832541 DOI: 10.1021/acs.inorgchem.2c03391] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Contemporary electrocatalysts for the reduction of CO2 often suffer from low stability, activity, and selectivity, or a combination thereof. Mn-carbonyl complexes represent a promising class of molecular electrocatalysts for the reduction of CO2 to CO as they are able to promote this reaction at relatively mild overpotentials, whereby rare-earth metals are not required. The electronic and geometric structure of the reaction center of these molecular electrocatalysts is precisely known and can be tuned via ligand modifications. However, ligand characteristics that are required to achieve high catalytic turnover at minimal overpotential remain unclear. We consider 55 Mn-carbonyl complexes, which have previously been synthesized and characterized experimentally. Four intermediates were identified that are common across all catalytic mechanisms proposed for Mn-carbonyl complexes, and their structures were used to calculate descriptors for each of the 55 Mn-carbonyl complexes. These electronic-structure-based descriptors encompass the binding energies, the highest occupied and lowest unoccupied molecular orbitals, and partial charges. Trends in turnover frequency and overpotential with these descriptors were analyzed to afford meaningful physical insights into what ligand characteristics lead to good catalytic performance, and how this is affected by the reaction conditions. These insights can be expected to significantly contribute to the rational design of more active Mn-carbonyl electrocatalysts.
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Affiliation(s)
- Jacob Florian
- Cavendish
Laboratory, University of Cambridge, J.J. Thomson Avenue, Cambridge CB3 0HE, U.K.
| | - Jacqueline M. Cole
- Cavendish
Laboratory, University of Cambridge, J.J. Thomson Avenue, Cambridge CB3 0HE, U.K.,ISIS
Neutron and Muon Source, STFC Rutherford
Appleton Laboratory, Harwell Campus for Science and Innovation, Didcot OX11 0QX, U.K.,
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6
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Scherpf T, Carr CR, Donnelly LJ, Dubrawski ZS, Gelfand BS, Piers WE. A Mesoionic Carbene-Pyridine Bidentate Ligand That Improves Stability in Electrocatalytic CO 2 Reduction by a Molecular Manganese Catalyst. Inorg Chem 2022; 61:13644-13656. [PMID: 35981323 DOI: 10.1021/acs.inorgchem.2c02689] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Tricarbonyl Group 7 complexes have a longstanding history as efficacious CO2 electroreduction catalysts. Typically, these complexes feature an auxiliary 2,2'-bipyridine ligand that assists in redox steps by delocalizing the electron density into the ligand orbitals. While this feature lends to an accessible redox potential for CO2 electroreduction, it also presents challenges for electrocatalysis with Mn because the electron density is removed from metal-ligand bonding orbitals. The results presented here thus introduce a mesoionic carbene (MIC) as a potent ligand platform to promote Mn-based electrocatalysis. The strong σ donation of the N,C-bidentate MIC is shown to help centralize the electron density on the Mn center while also maintaining relevant redox potentials for CO2 electroreduction. Mechanistic investigation supports catalytic turnover at two operative potentials separated by 400 mV. In the low operating potential regime at -1.54 V, Mn(0) species catalyze CO2 to CO and CO32-, which has a maximum rate of 7 ± 5 s-1 and is stable for up to 30.7 h. At higher operating potential at -1.94 V, "Mn(-1)" catalyzes CO2 to CO and H2O with faster turnovers of 200 ± 100 s-1, with the trade-off being less stability at 6.7 h. The relative stabilities of Mn complexes bearing MIC and 4,4'-di-tert-butyl-2,2'-bipyridine were compared by evaluation under the same electrolysis conditions and therefore elucidated that the MIC promotes longevity for CO evolution throughout a 5 h period.
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Affiliation(s)
- Thorsten Scherpf
- Department of Chemistry, University of Calgary, 2500 University Drive N.W., Calgary, Alberta T2N 1N4, Canada
| | - Cody R Carr
- Department of Chemistry, University of Calgary, 2500 University Drive N.W., Calgary, Alberta T2N 1N4, Canada
| | - Laurie J Donnelly
- Department of Chemistry, University of Calgary, 2500 University Drive N.W., Calgary, Alberta T2N 1N4, Canada
| | - Zachary S Dubrawski
- Department of Chemistry, University of Calgary, 2500 University Drive N.W., Calgary, Alberta T2N 1N4, Canada
| | - Benjamin S Gelfand
- Department of Chemistry, University of Calgary, 2500 University Drive N.W., Calgary, Alberta T2N 1N4, Canada
| | - Warren E Piers
- Department of Chemistry, University of Calgary, 2500 University Drive N.W., Calgary, Alberta T2N 1N4, Canada
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7
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Friães S, Realista S, Mourão H, Royo B. N‐Heterocyclic and Mesoionic Carbenes of Manganese and Rhenium in Catalysis. Eur J Inorg Chem 2022. [DOI: 10.1002/ejic.202100884] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
| | | | | | - Beatriz Royo
- Universidade Nova de Lisboa Instituto de Tecnologia Quimica e Biologica ITQB NOVA, Instituto de Tecnologia Química e Biológica António Xavier Av. da República 2780-157 Oeiras PORTUGAL
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8
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Friães S, Realista S, Gomes CSB, Martinho PN, Royo B. Click-Derived Triazoles and Triazolylidenes of Manganese for Electrocatalytic Reduction of CO 2. Molecules 2021; 26:molecules26216325. [PMID: 34770734 PMCID: PMC8588546 DOI: 10.3390/molecules26216325] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Revised: 10/14/2021] [Accepted: 10/16/2021] [Indexed: 11/16/2022] Open
Abstract
A series of new fac-[Mn(L)(CO)3Br] complexes where L is a bidentate chelating ligand containing mixed mesoionic triazolylidene-pyridine (MIC^py, 1), triazolylidene-triazole (MIC^trz, 2), and triazole-pyridine (trz^py, 3) ligands have been prepared and fully characterized, including the single crystal X-ray diffraction studies of 1 and 2. The abilities of 1–3 and complex fac-[Mn(MIC^MIC)(CO)3Br] (4) to catalyze the electroreduction of CO2 has been assessed for the first time. It was found that all complexes displayed a current increase under CO2 atmosphere, being 3 and 4 the most active complexes. Complex 3, bearing a N^N-based ligand exhibited a good efficiency and an excellent selectivity for reducing CO2 to CO in the presence of 1.0 M of water, at low overpotential. Interestingly, complex 4 containing the strongly electron donating di-imidazolylidene ligand exhibited comparable activity to 3, when the experiments were performed in neat acetonitrile at slightly higher overpotential (−1.86 vs. −2.14 V).
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Affiliation(s)
- Sofia Friães
- ITQB NOVA, Instituto de Tecnologia Química e Biológica António Xavier, Av. da República, 2780-157 Oeiras, Portugal; (S.F.); (S.R.)
| | - Sara Realista
- ITQB NOVA, Instituto de Tecnologia Química e Biológica António Xavier, Av. da República, 2780-157 Oeiras, Portugal; (S.F.); (S.R.)
| | - Clara S. B. Gomes
- LAQV-REQUIMTE, Department of Chemistry, Campus de Caparica, NOVA School of Science and Technology, NOVA University Lisbon, 2829-516 Caparica, Portugal;
- Associated Laboratory i4HB-Institute for Health and Bioeconomy, School of Science and Technology, NOVA University Lisbon, 2829-516 Caparica, Portugal
- UCIBIO-Applied Molecular Biosciences Unit, Department of Chemistry, School of Science and Technology, NOVA University Lisbon, 2829-516 Caparica, Portugal
| | - Paulo N. Martinho
- Biosystems and Integrative Sciences Institute (BioISI), Faculdade de Ciências, Campo Grande, Universidade de Lisboa, 1749-016 Lisboa, Portugal;
- Centro de Química Estrutural, Campo Grande, Faculdade de Ciências Universidade de Lisboa, 1749-016 Lisboa, Portugal
| | - Beatriz Royo
- ITQB NOVA, Instituto de Tecnologia Química e Biológica António Xavier, Av. da República, 2780-157 Oeiras, Portugal; (S.F.); (S.R.)
- Correspondence:
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9
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10
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Huang C, Liu J, Huang HH, Ke Z. Recent progress in electro- and photo-catalytic CO2 reduction using N-heterocyclic carbene transition metal complexes. Polyhedron 2021. [DOI: 10.1016/j.poly.2021.115147] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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11
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Kinzel NW, Werlé C, Leitner W. Transition Metal Complexes as Catalysts for the Electroconversion of CO 2 : An Organometallic Perspective. Angew Chem Int Ed Engl 2021; 60:11628-11686. [PMID: 33464678 PMCID: PMC8248444 DOI: 10.1002/anie.202006988] [Citation(s) in RCA: 109] [Impact Index Per Article: 36.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Revised: 08/11/2020] [Indexed: 12/17/2022]
Abstract
The electrocatalytic transformation of carbon dioxide has been a topic of interest in the field of CO2 utilization for a long time. Recently, the area has seen increasing dynamics as an alternative strategy to catalytic hydrogenation for CO2 reduction. While many studies focus on the direct electron transfer to the CO2 molecule at the electrode material, molecular transition metal complexes in solution offer the possibility to act as catalysts for the electron transfer. C1 compounds such as carbon monoxide, formate, and methanol are often targeted as the main products, but more elaborate transformations are also possible within the coordination sphere of the metal center. This perspective article will cover selected examples to illustrate and categorize the currently favored mechanisms for the electrochemically induced transformation of CO2 promoted by homogeneous transition metal complexes. The insights will be corroborated with the concepts and elementary steps of organometallic catalysis to derive potential strategies to broaden the molecular diversity of possible products.
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Affiliation(s)
- Niklas W. Kinzel
- Max Planck Institute for Chemical Energy ConversionStiftstr. 34–3645470Mülheim an der RuhrGermany
- Institut für Technische und Makromolekulare Chemie (ITMC)RWTH Aachen UniversityWorringer Weg 252074AachenGermany
| | - Christophe Werlé
- Max Planck Institute for Chemical Energy ConversionStiftstr. 34–3645470Mülheim an der RuhrGermany
- Ruhr University BochumUniversitätsstr. 15044801BochumGermany
| | - Walter Leitner
- Max Planck Institute for Chemical Energy ConversionStiftstr. 34–3645470Mülheim an der RuhrGermany
- Institut für Technische und Makromolekulare Chemie (ITMC)RWTH Aachen UniversityWorringer Weg 252074AachenGermany
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12
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Yang Y, Zhang Z, Zhang Z, Tang C, Chang X, Duan L. Electrocatalytic
CO
2
Reduction with
Re‐Based
Spiro Bipyridine Complexes: Effects of the Local Proton in the Second Coordination Sphere
†. CHINESE J CHEM 2021. [DOI: 10.1002/cjoc.202000667] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Yong Yang
- Department of Chemistry, Shenzhen Grubbs Institute and Guangdong Provincial Key Laboratory of Energy Materials for Electric Power, Southern University of Science and Technology Shenzhen Guangdong 518055 China
| | - Ziyun Zhang
- Department of Chemistry, Shenzhen Grubbs Institute and Guangdong Provincial Key Laboratory of Energy Materials for Electric Power, Southern University of Science and Technology Shenzhen Guangdong 518055 China
| | - Zhenyu Zhang
- Department of Chemistry, Shenzhen Grubbs Institute and Guangdong Provincial Key Laboratory of Energy Materials for Electric Power, Southern University of Science and Technology Shenzhen Guangdong 518055 China
| | - Chao Tang
- Department of Chemistry, Shenzhen Grubbs Institute and Guangdong Provincial Key Laboratory of Energy Materials for Electric Power, Southern University of Science and Technology Shenzhen Guangdong 518055 China
| | - Xiaoyong Chang
- Department of Chemistry, Shenzhen Grubbs Institute and Guangdong Provincial Key Laboratory of Energy Materials for Electric Power, Southern University of Science and Technology Shenzhen Guangdong 518055 China
| | - Lele Duan
- Department of Chemistry, Shenzhen Grubbs Institute and Guangdong Provincial Key Laboratory of Energy Materials for Electric Power, Southern University of Science and Technology Shenzhen Guangdong 518055 China
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13
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Shirley H, Sexton TM, Liyanage NP, Perkins MA, Autry SA, McNamara LE, Hammer NI, Parkin SR, Tschumper GS, Delcamp JH. Probing the Effects of Electron Deficient Aryl Substituents and a π‐System Extended NHC Ring on the Photocatalytic CO
2
Reduction Reaction with Re‐pyNHC‐Aryl Complexes**. CHEMPHOTOCHEM 2021. [DOI: 10.1002/cptc.202000296] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Hunter Shirley
- Department of Chemistry and Biochemistry University of Mississippi 322 Coulter Hall University MS 38677–1848 USA
| | - Thomas More Sexton
- Department of Chemistry and Biochemistry University of Mississippi 322 Coulter Hall University MS 38677–1848 USA
| | - Nalaka P. Liyanage
- Department of Chemistry and Biochemistry University of Mississippi 322 Coulter Hall University MS 38677–1848 USA
| | - Morgan A. Perkins
- Department of Chemistry and Biochemistry University of Mississippi 322 Coulter Hall University MS 38677–1848 USA
| | - Shane A. Autry
- Department of Chemistry and Biochemistry University of Mississippi 322 Coulter Hall University MS 38677–1848 USA
| | - Louis E. McNamara
- Department of Chemistry and Biochemistry University of Mississippi 322 Coulter Hall University MS 38677–1848 USA
| | - Nathan I. Hammer
- Department of Chemistry and Biochemistry University of Mississippi 322 Coulter Hall University MS 38677–1848 USA
| | - Sean R. Parkin
- Department of Chemistry University of Kentucky 125 Chemistry/Physics Building Lexington KY 40506–0055 USA
| | - Gregory S. Tschumper
- Department of Chemistry and Biochemistry University of Mississippi 322 Coulter Hall University MS 38677–1848 USA
| | - Jared H. Delcamp
- Department of Chemistry and Biochemistry University of Mississippi 322 Coulter Hall University MS 38677–1848 USA
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14
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Kinzel NW, Werlé C, Leitner W. Übergangsmetallkomplexe als Katalysatoren für die elektrische Umwandlung von CO
2
– eine metallorganische Perspektive. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202006988] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Niklas W. Kinzel
- Max-Planck-Institut für Chemische Energiekonversion Stiftstraße 34–36 45470 Mülheim an der Ruhr Deutschland
- Institut für Technische und Makromolekulare Chemie (ITMC) RWTH Aachen University Worringer Weg 2 52074 Aachen Deutschland
| | - Christophe Werlé
- Max-Planck-Institut für Chemische Energiekonversion Stiftstraße 34–36 45470 Mülheim an der Ruhr Deutschland
- Ruhr-Universität Bochum Universitätsstraße 150 44801 Bochum Deutschland
| | - Walter Leitner
- Max-Planck-Institut für Chemische Energiekonversion Stiftstraße 34–36 45470 Mülheim an der Ruhr Deutschland
- Institut für Technische und Makromolekulare Chemie (ITMC) RWTH Aachen University Worringer Weg 2 52074 Aachen Deutschland
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15
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Fu Z, Wang X, Tao S, Bu Q, Wei D, Liu N. Manganese Catalyzed Direct Amidation of Esters with Amines. J Org Chem 2021; 86:2339-2358. [DOI: 10.1021/acs.joc.0c02478] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Zhengqiang Fu
- School of Chemistry and Chemical Engineering, Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, Shihezi University, North Fourth Road, Shihezi, Xinjiang 832003, People’s Republic of China
| | - Xinghua Wang
- College of Chemistry, Center of Computational Chemistry, Zhengzhou University, Zhengzhou 450001, People’s Republic of China
| | - Sheng Tao
- School of Chemistry and Chemical Engineering, Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, Shihezi University, North Fourth Road, Shihezi, Xinjiang 832003, People’s Republic of China
| | - Qingqing Bu
- School of Chemistry and Chemical Engineering, Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, Shihezi University, North Fourth Road, Shihezi, Xinjiang 832003, People’s Republic of China
| | - Donghui Wei
- College of Chemistry, Center of Computational Chemistry, Zhengzhou University, Zhengzhou 450001, People’s Republic of China
| | - Ning Liu
- School of Chemistry and Chemical Engineering, Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, Shihezi University, North Fourth Road, Shihezi, Xinjiang 832003, People’s Republic of China
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16
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Shirley H, Figgins MT, Boudreaux CM, Liyanage NP, Lamb RW, Webster CE, Papish ET, Delcamp JH. Impact of the Dissolved Anion on the Electrocatalytic Reduction of CO
2
to CO with Ruthenium CNC Pincer Complexes. ChemCatChem 2020. [DOI: 10.1002/cctc.202000742] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Hunter Shirley
- Department of Chemistry and Biochemistry Coulter Hall The University of Mississippi MS 38677 USA
| | - Matthew T. Figgins
- Department of Chemistry Hand Lab Mississippi State University Mississippi MS 39762 USA
| | - Chance M. Boudreaux
- Department of Chemistry and Biochemistry Shelby Hall The University of Alabama Tuscaloosa AL 35487 USA
| | - Nalaka P. Liyanage
- Department of Chemistry and Biochemistry Coulter Hall The University of Mississippi MS 38677 USA
| | - Robert W. Lamb
- Department of Chemistry Hand Lab Mississippi State University Mississippi MS 39762 USA
| | - Charles Edwin Webster
- Department of Chemistry Hand Lab Mississippi State University Mississippi MS 39762 USA
| | - Elizabeth T. Papish
- Department of Chemistry and Biochemistry Shelby Hall The University of Alabama Tuscaloosa AL 35487 USA
| | - Jared H. Delcamp
- Department of Chemistry and Biochemistry Coulter Hall The University of Mississippi MS 38677 USA
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17
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Shirley H, Parkin S, Delcamp JH. Photoinduced Generation of a Durable Thermal Proton Reduction Catalyst with in Situ Conversion of Mn(bpy)(CO)3Br to Mn(bpy)2Br2. Inorg Chem 2020; 59:11266-11272. [DOI: 10.1021/acs.inorgchem.0c00480] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Hunter Shirley
- Department of Chemistry and Biochemistry, University of Mississippi, University, Mississippi 38677, United States
| | - Sean Parkin
- Department of Chemistry, University of Kentucky, Lexington, Kentucky 40506, United States
| | - Jared H. Delcamp
- Department of Chemistry and Biochemistry, University of Mississippi, University, Mississippi 38677, United States
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18
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Yang Y, Zhang Z, Chang X, Zhang YQ, Liao RZ, Duan L. Highly Active Manganese-Based CO 2 Reduction Catalysts with Bulky NHC Ligands: A Mechanistic Study. Inorg Chem 2020; 59:10234-10242. [PMID: 32585094 DOI: 10.1021/acs.inorgchem.0c01364] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Because of the strong σ-donor and weak π-acceptor of the N-heterocyclic carbene (NHC), Mn-NHC complexes were found to be active for the reduction of CO2 to CO with high activity. However, some NHC-based manganese complexes showed low catalytic activity and required very negative potentials. We report herein that complex fac-[MnI(bis-MesNHC)(CO)3Br] [1; bis-MesNHC = 3,3-bis(2,4,6-trimethylphenyl)-(1,1'-diimidazolin-2,2'-diylidene)methane] could catalyze the electrochemical reduction of CO2 to CO with high activity (TOFmax = 3180 ± 6 s-1) at a less negative potential. Due to the introduction of the bulky Mes groups, a one-electron-reduced intermediate {[Mn0(bis-MesNHC)(CO)3]0 (2•)} was isolated as a packed "dimer" and crystallographically characterized. Stopped-flow Fourier-transform infrared spectroscopy was used to prove the direct reaction between doubly reduced intermediate fac-[Mn(bis-MesNHC)(CO)3]- and CO2; the tetracarbonyl Mn complex [Mn+(bis-MesNHC)(CO)4]+ ([2-CO]+) was captured, and its further reduction proposed as the rate-limiting step.
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Affiliation(s)
- Yong Yang
- Department of Chemistry, Southern University of Science and Technology (SUSTech), Shenzhen 518055, P. R. China
| | - Zhenyu Zhang
- Department of Chemistry, Southern University of Science and Technology (SUSTech), Shenzhen 518055, P. R. China
| | - Xiaoyong Chang
- Department of Chemistry, Southern University of Science and Technology (SUSTech), Shenzhen 518055, P. R. China
| | - Ya-Qiong Zhang
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, P. R. China
| | - Rong-Zhen Liao
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, P. R. China
| | - Lele Duan
- Department of Chemistry, Southern University of Science and Technology (SUSTech), Shenzhen 518055, P. R. China.,Shenzhen Grubbs Institute and Guangdong Provincial Key Laboratory of Energy Materials for Electric Power, Southern University of Science and Technology (SUSTech), Shenzhen 518055, P. R. China
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19
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Shirley H, Sexton TM, Liyanage NP, Palmer CZ, McNamara LE, Hammer NI, Tschumper GS, Delcamp JH. Effect of “X” Ligands on the Photocatalytic Reduction of CO
2
to CO with Re(pyridylNHC‐CF
3
)(CO)
3
X Complexes. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.202000283] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Hunter Shirley
- Department of Chemistry and Biochemistry University of Mississippi 322 Coulter Hall 38677 University MS USA
| | - Thomas More Sexton
- Department of Chemistry and Biochemistry University of Mississippi 322 Coulter Hall 38677 University MS USA
| | - Nalaka P. Liyanage
- Department of Chemistry and Biochemistry University of Mississippi 322 Coulter Hall 38677 University MS USA
| | - C. Zachary Palmer
- Department of Chemistry and Biochemistry University of Mississippi 322 Coulter Hall 38677 University MS USA
| | - Louis E. McNamara
- Department of Chemistry and Biochemistry University of Mississippi 322 Coulter Hall 38677 University MS USA
| | - Nathan I. Hammer
- Department of Chemistry and Biochemistry University of Mississippi 322 Coulter Hall 38677 University MS USA
| | - Gregory S. Tschumper
- Department of Chemistry and Biochemistry University of Mississippi 322 Coulter Hall 38677 University MS USA
| | - Jared H. Delcamp
- Department of Chemistry and Biochemistry University of Mississippi 322 Coulter Hall 38677 University MS USA
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20
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Henke WC, Otolski CJ, Moore WNG, Elles CG, Blakemore JD. Ultrafast Spectroscopy of [Mn(CO) 3] Complexes: Tuning the Kinetics of Light-Driven CO Release and Solvent Binding. Inorg Chem 2020; 59:2178-2187. [PMID: 31990533 DOI: 10.1021/acs.inorgchem.9b02758] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Manganese tricarbonyl complexes are promising catalysts for CO2 reduction, but complexes in this family are often photosensitive and decompose rapidly upon exposure to visible light. In this report, synthetic and photochemical studies probe the initial steps of light-driven speciation for Mn(CO)3(Rbpy)Br complexes bearing a range of 4,4'-disubstituted 2,2'-bipyridyl ligands (Rbpy, where R = tBu, H, CF3, NO2). Transient absorption spectroscopy measurements for Mn(CO)3(Rbpy)Br coordination compounds with R = tBu, H, and CF3 in acetonitrile reveal ultrafast loss of a CO ligand on the femtosecond time scale, followed by solvent coordination on the picosecond time scale. The Mn(CO)3(NO2bpy)Br complex is unique among the four compounds in having a longer-lived excited state that does not undergo CO release or subsequent solvent coordination. The kinetics of photolysis and solvent coordination for light-sensitive complexes depend on the electronic properties of the disubstituted bipyridyl ligand. The results indicate that both metal-to-ligand charge-transfer (MLCT) and dissociative ligand-field (d-d) excited states play a role in the ultrafast photochemistry. Taken together, the findings suggest that more robust catalysts could be prepared with appropriately designed complexes that avoid crossing between the excited states that drive photochemical CO loss.
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Affiliation(s)
- Wade C Henke
- Department of Chemistry , University of Kansas , 1567 Irving Hill Road , Lawrence , Kansas 66045-7582 , United States
| | - Christopher J Otolski
- Department of Chemistry , University of Kansas , 1567 Irving Hill Road , Lawrence , Kansas 66045-7582 , United States
| | - William N G Moore
- Department of Chemistry , University of Kansas , 1567 Irving Hill Road , Lawrence , Kansas 66045-7582 , United States
| | - Christopher G Elles
- Department of Chemistry , University of Kansas , 1567 Irving Hill Road , Lawrence , Kansas 66045-7582 , United States
| | - James D Blakemore
- Department of Chemistry , University of Kansas , 1567 Irving Hill Road , Lawrence , Kansas 66045-7582 , United States
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21
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Shirley H, Su X, Sanjanwala H, Talukdar K, Jurss JW, Delcamp JH. Durable Solar-Powered Systems with Ni-Catalysts for Conversion of CO2 or CO to CH4. J Am Chem Soc 2019; 141:6617-6622. [DOI: 10.1021/jacs.9b00937] [Citation(s) in RCA: 75] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Hunter Shirley
- Department of Chemistry and Biochemistry, University of Mississippi, University, Mississippi 38677, United States
| | - Xiaojun Su
- Department of Chemistry and Biochemistry, University of Mississippi, University, Mississippi 38677, United States
| | - Harshin Sanjanwala
- Department of Chemistry and Biochemistry, University of Mississippi, University, Mississippi 38677, United States
| | - Kallol Talukdar
- Department of Chemistry and Biochemistry, University of Mississippi, University, Mississippi 38677, United States
| | - Jonah W. Jurss
- Department of Chemistry and Biochemistry, University of Mississippi, University, Mississippi 38677, United States
| | - Jared H. Delcamp
- Department of Chemistry and Biochemistry, University of Mississippi, University, Mississippi 38677, United States
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22
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Tignor SE, Shaw TW, Bocarsly AB. Elucidating the origins of enhanced CO2 reduction in manganese electrocatalysts bearing pendant hydrogen-bond donors. Dalton Trans 2019; 48:12730-12737. [DOI: 10.1039/c9dt02060h] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A mechanistic analysis showing the critical importance of an intramolecular hydrogen bond for improved insight and understanding in CO2 electroreduction.
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23
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Wang X, Ma H, Meng C, Chen D, Huang F. A rational design of manganese electrocatalysts for Lewis acid-assisted carbon dioxide reduction. Phys Chem Chem Phys 2019; 21:8849-8855. [PMID: 30977486 DOI: 10.1039/c9cp00514e] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Herein, the mechanisms of Brønsted acid- and Lewis acid-assisted CO2 electroreduction by Mn(mesbpy)(CO)3Br (1) were investigated by density functional theory calculations. Our results indicate that for the Lewis acid-assisted cycle, an energy sink (13) is present owing to the interaction between Mg(OTf)2 and activated CO2, which is disadvantageous to the apparent activation energy (ΔG≠). Moreover, a series of substituted 13 counterparts were investigated to reduce the energy sink and decrease ΔG≠. Based on our study on the substituent effect, an excellent linear relationship was found between 2e reduction potentials and LUMO energies of substituted 1, and a moderate linear relationship was observed between ΔG of substituted 13 and the 2e reduction potential of substituted 1 counterparts. Moreover, for the CO2 reduction assisted by a Lewis acid, the formyl-substituted complex R8 has been predicted to be a more effective catalyst with lower overpotential and higher catalytic activity than its parent complex 1.
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Affiliation(s)
- Xiaoli Wang
- College of Chemistry, Chemical Engineering and Materials Science, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Institute of Molecular and Nano Science, Shandong Normal University, Jinan, 250014, P. R. China.
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24
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Jiang C, Nichols AW, Machan CW. A look at periodic trends in d-block molecular electrocatalysts for CO2 reduction. Dalton Trans 2019; 48:9454-9468. [DOI: 10.1039/c9dt00491b] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Periodic trends in the electronic structure of the transition metal centers can be used to explain the observed CO2 reduction activities in molecular electrocatalysts for CO2 reductions. Research activities concerning both horizontal and vertical trends have been summarized with mononuclear complexes from Group 6 to Group 10.
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Affiliation(s)
| | - Asa W. Nichols
- Department of Chemistry
- University of Virginia
- Charlottesville
- USA
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25
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Myren THT, Lilio AM, Huntzinger CG, Horstman JW, Stinson TA, Donadt TB, Moore C, Lama B, Funke HH, Luca OR. Manganese N-Heterocyclic Carbene Pincers for the Electrocatalytic Reduction of Carbon Dioxide. Organometallics 2018. [DOI: 10.1021/acs.organomet.8b00535] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
| | | | | | | | | | | | - Curtis Moore
- Department of Chemistry and Biochemistry, University of California San Diego, 9500 Gilman Drive, MC 0358, La Jolla, California 92093-0358, United States
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26
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Grills DC, Ertem MZ, McKinnon M, Ngo KT, Rochford J. Mechanistic aspects of CO2 reduction catalysis with manganese-based molecular catalysts. Coord Chem Rev 2018. [DOI: 10.1016/j.ccr.2018.05.022] [Citation(s) in RCA: 75] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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27
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McKinnon M, Ngo KT, Sobottka S, Sarkar B, Ertem MZ, Grills DC, Rochford J. Synergistic Metal–Ligand Redox Cooperativity for Electrocatalytic CO2 Reduction Promoted by a Ligand-Based Redox Couple in Mn and Re Tricarbonyl Complexes. Organometallics 2018. [DOI: 10.1021/acs.organomet.8b00584] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Meaghan McKinnon
- Department of Chemistry, University of Massachusetts Boston, 100 Morrissey Boulevard, Boston, Massachusetts 02125, United States
| | - Ken T. Ngo
- Department of Chemistry, University of Massachusetts Boston, 100 Morrissey Boulevard, Boston, Massachusetts 02125, United States
| | - Sebastian Sobottka
- Institut für Chemie und Biochemie, Anorganische Chemie, Freie Universität Berlin, Fabeckstrasse 34-36, Berlin 14195, Germany
| | - Biprajit Sarkar
- Institut für Chemie und Biochemie, Anorganische Chemie, Freie Universität Berlin, Fabeckstrasse 34-36, Berlin 14195, Germany
| | - Mehmed Z. Ertem
- Chemistry Division, Brookhaven National Laboratory, Upton, New York 11973-5000, United States
| | - David C. Grills
- Chemistry Division, Brookhaven National Laboratory, Upton, New York 11973-5000, United States
| | - Jonathan Rochford
- Department of Chemistry, University of Massachusetts Boston, 100 Morrissey Boulevard, Boston, Massachusetts 02125, United States
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28
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Tignor SE, Kuo HY, Lee TS, Scholes GD, Bocarsly AB. Manganese-Based Catalysts with Varying Ligand Substituents for the Electrochemical Reduction of CO2 to CO. Organometallics 2018. [DOI: 10.1021/acs.organomet.8b00554] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Steven E. Tignor
- Department of Chemistry, Princeton University, Princeton, New Jersey 08544, United States
| | - Hsin-Ya Kuo
- Department of Chemistry, Princeton University, Princeton, New Jersey 08544, United States
| | - Tia S. Lee
- Department of Chemistry, Princeton University, Princeton, New Jersey 08544, United States
| | - Gregory D. Scholes
- Department of Chemistry, Princeton University, Princeton, New Jersey 08544, United States
| | - Andrew B. Bocarsly
- Department of Chemistry, Princeton University, Princeton, New Jersey 08544, United States
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29
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Whang DR, Apaydin DH, Park SY, Sariciftci NS. An electron-reservoir Re(I) complex for enhanced efficiency for reduction of CO2 to CO. J Catal 2018. [DOI: 10.1016/j.jcat.2018.04.028] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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30
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31
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Huckaba AJ, Shirley H, Lamb RW, Guertin S, Autry S, Cheema H, Talukdar K, Jones T, Jurss JW, Dass A, Hammer NI, Schmehl RH, Webster CE, Delcamp JH. A Mononuclear Tungsten Photocatalyst for H2 Production. ACS Catal 2018. [DOI: 10.1021/acscatal.7b04242] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Aron J. Huckaba
- Department of Chemistry and Biochemistry, University of Mississippi, University, Mississippi 38677, United States
| | - Hunter Shirley
- Department of Chemistry and Biochemistry, University of Mississippi, University, Mississippi 38677, United States
| | - Robert W. Lamb
- Department of Chemistry, Mississippi State University, Mississippi State, Mississippi 39762, United States
| | - Steve Guertin
- Department of Chemistry, Tulane University, New Orleans, Louisiana 70118, United States
| | - Shane Autry
- Department of Chemistry and Biochemistry, University of Mississippi, University, Mississippi 38677, United States
| | - Hammad Cheema
- Department of Chemistry and Biochemistry, University of Mississippi, University, Mississippi 38677, United States
| | - Kallol Talukdar
- Department of Chemistry and Biochemistry, University of Mississippi, University, Mississippi 38677, United States
| | - Tanya Jones
- Department of Chemistry and Biochemistry, University of Mississippi, University, Mississippi 38677, United States
| | - Jonah W. Jurss
- Department of Chemistry and Biochemistry, University of Mississippi, University, Mississippi 38677, United States
| | - Amala Dass
- Department of Chemistry and Biochemistry, University of Mississippi, University, Mississippi 38677, United States
| | - Nathan I. Hammer
- Department of Chemistry and Biochemistry, University of Mississippi, University, Mississippi 38677, United States
| | - Russell H. Schmehl
- Department of Chemistry, Tulane University, New Orleans, Louisiana 70118, United States
| | - Charles Edwin Webster
- Department of Chemistry, Mississippi State University, Mississippi State, Mississippi 39762, United States
| | - Jared H. Delcamp
- Department of Chemistry and Biochemistry, University of Mississippi, University, Mississippi 38677, United States
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32
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Franco F, Pinto MF, Royo B, Lloret‐Fillol J. A Highly Active N-Heterocyclic Carbene Manganese(I) Complex for Selective Electrocatalytic CO 2 Reduction to CO. Angew Chem Int Ed Engl 2018; 57:4603-4606. [PMID: 29481726 PMCID: PMC5947128 DOI: 10.1002/anie.201800705] [Citation(s) in RCA: 78] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2018] [Indexed: 12/19/2022]
Abstract
We report here the first purely organometallic fac-[MnI (CO)3 (bis-Me NHC)Br] complex with unprecedented activity for the selective electrocatalytic reduction of CO2 to CO, exceeding 100 turnovers with excellent faradaic yields (ηCO ≈95 %) in anhydrous CH3 CN. Under the same conditions, a maximum turnover frequency (TOFmax ) of 2100 s-1 was measured by cyclic voltammetry, which clearly exceeds the values reported for other manganese-based catalysts. Moreover, the addition of water leads to the highest TOFmax value (ca. 320 000 s-1 ) ever reported for a manganese-based catalyst. A MnI tetracarbonyl intermediate was detected under catalytic conditions for the first time.
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Affiliation(s)
- Federico Franco
- Institute of Chemical Research of Catalonia (ICIQ)The Barcelona Institute of Science and TechnologyAvinguda Països Catalans 1643007TarragonaSpain
| | - Mara F. Pinto
- Instituto de Tecnologia Química e Biológica António Xavier (ITQB)Nova University of LisbonAv. da República2780-157OeirasPortugal
| | - Beatriz Royo
- Instituto de Tecnologia Química e Biológica António Xavier (ITQB)Nova University of LisbonAv. da República2780-157OeirasPortugal
| | - Julio Lloret‐Fillol
- Institute of Chemical Research of Catalonia (ICIQ)The Barcelona Institute of Science and TechnologyAvinguda Països Catalans 1643007TarragonaSpain
- Catalan Institution for Research and Advanced Studies (ICREA)Passeig Lluïs Companys, 2308010BarcelonaSpain
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33
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Stanbury M, Compain JD, Chardon-Noblat S. Electro and photoreduction of CO 2 driven by manganese-carbonyl molecular catalysts. Coord Chem Rev 2018. [DOI: 10.1016/j.ccr.2018.01.014] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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34
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Franco F, Pinto MF, Royo B, Lloret‐Fillol J. A Highly Active N‐Heterocyclic Carbene Manganese(I) Complex for Selective Electrocatalytic CO
2
Reduction to CO. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201800705] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Federico Franco
- Institute of Chemical Research of Catalonia (ICIQ) The Barcelona Institute of Science and Technology Avinguda Països Catalans 16 43007 Tarragona Spain
| | - Mara F. Pinto
- Instituto de Tecnologia Química e Biológica António Xavier (ITQB) Nova University of Lisbon Av. da República 2780-157 Oeiras Portugal
| | - Beatriz Royo
- Instituto de Tecnologia Química e Biológica António Xavier (ITQB) Nova University of Lisbon Av. da República 2780-157 Oeiras Portugal
| | - Julio Lloret‐Fillol
- Institute of Chemical Research of Catalonia (ICIQ) The Barcelona Institute of Science and Technology Avinguda Països Catalans 16 43007 Tarragona Spain
- Catalan Institution for Research and Advanced Studies (ICREA) Passeig Lluïs Companys, 23 08010 Barcelona Spain
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35
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Affiliation(s)
- Jonathon E. Vandezande
- Center for Computational
Quantum Chemistry, University of Georgia, Athens, Georgia 30602, United States
| | - Henry F. Schaefer
- Center for Computational
Quantum Chemistry, University of Georgia, Athens, Georgia 30602, United States
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36
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A Robust Pyridyl-NHC-Ligated Rhenium Photocatalyst for CO2 Reduction in the Presence of Water and Oxygen. INORGANICS 2018. [DOI: 10.3390/inorganics6010022] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Re(pyNHC-PhCF3)(CO)3Br is a highly active photocatalyst for CO2 reduction. The PhCF3 derivative was previously empirically shown to be a robust catalyst. Here, the role of the PhCF3 group is probed computationally and the robust nature of this catalyst is analyzed with regard to the presence of water and oxygen introduced in controlled amounts during the photocatalytic reduction of CO2 to CO with visible light. This complex was found to work well from 0–1% water concentration reproducibly; however, trace amounts of water were required for benchmark Re(bpy)(CO)3Cl to give reproducible reactivity. When ambient air is added to the reaction mixture, the NHC complex was found to retain substantial performance (~50% of optimized reactivity) at up to 40% ambient atmosphere and 60% CO2 while the Re(bpy)(CO)3Cl complex was found to give a dramatically reduced CO2 reduction reactivity upon introduction of ambient atmosphere. Through the use of time-correlated single photon counting studies and prior electrochemical results, we reasoned that this enhanced catalyst resilience is due to a mechanistic difference between the NHC- and bpy-based catalysts. These results highlight an important feature of this NHC-ligated catalyst: substantially enhanced stability toward common reaction contaminates.
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37
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Francke R, Schille B, Roemelt M. Homogeneously Catalyzed Electroreduction of Carbon Dioxide-Methods, Mechanisms, and Catalysts. Chem Rev 2018; 118:4631-4701. [PMID: 29319300 DOI: 10.1021/acs.chemrev.7b00459] [Citation(s) in RCA: 589] [Impact Index Per Article: 98.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
The utilization of CO2 via electrochemical reduction constitutes a promising approach toward production of value-added chemicals or fuels using intermittent renewable energy sources. For this purpose, molecular electrocatalysts are frequently studied and the recent progress both in tuning of the catalytic properties and in mechanistic understanding is truly remarkable. While in earlier years research efforts were focused on complexes with rare metal centers such as Re, Ru, and Pd, the focus has recently shifted toward earth-abundant transition metals such as Mn, Fe, Co, and Ni. By application of appropriate ligands, these metals have been rendered more than competitive for CO2 reduction compared to the heavier homologues. In addition, the important roles of the second and outer coordination spheres in the catalytic processes have become apparent, and metal-ligand cooperativity has recently become a well-established tool for further tuning of the catalytic behavior. Surprising advances have also been made with very simple organocatalysts, although the mechanisms behind their reactivity are not yet entirely understood. Herein, the developments of the last three decades in electrocatalytic CO2 reduction with homogeneous catalysts are reviewed. A discussion of the underlying mechanistic principles is included along with a treatment of the experimental and computational techniques for mechanistic studies and catalyst benchmarking. Important catalyst families are discussed in detail with regard to mechanistic aspects, and recent advances in the field are highlighted.
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Affiliation(s)
- Robert Francke
- Institute of Chemistry , Rostock University , Albert-Einstein-Strasse 3a , 18059 Rostock , Germany
| | - Benjamin Schille
- Institute of Chemistry , Rostock University , Albert-Einstein-Strasse 3a , 18059 Rostock , Germany
| | - Michael Roemelt
- Lehrstuhl für Theoretische Chemie , Ruhr-University Bochum , 44780 Bochum , Germany.,Max-Planck Institut für Kohlenforschung , Kaiser-Wilhelm Platz 1 , 45470 Mülheim an der Ruhr , Germany
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38
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Gonell S, Miller AJ. Carbon Dioxide Electroreduction Catalyzed by Organometallic Complexes. ADVANCES IN ORGANOMETALLIC CHEMISTRY 2018. [DOI: 10.1016/bs.adomc.2018.07.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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39
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Liang Y, Nguyen MT, Holliday BJ, Jones RA. Electrocatalytic reduction of CO2 using rhenium complexes with dipyrido[3,2-a:2′,3′-c]phenazine ligands. INORG CHEM COMMUN 2017. [DOI: 10.1016/j.inoche.2017.08.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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