1
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Takeda H, Irimajiri M, Mizutani T, Nozawa S, Matsuura Y, Kurosu M, Ishitani O. Photocatalytic CO 2 Reduction Using Mixed Catalytic Systems Comprising an Iron Cation with Bulky Phenanthroline Ligands. Inorg Chem 2024; 63:7343-7355. [PMID: 38598607 DOI: 10.1021/acs.inorgchem.4c00247] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/12/2024]
Abstract
This study reports on efficient photocatalytic CO2 reduction reactions using mixed catalytic systems of an Fe ion source and various 1,10-phenanthroline derivatives (R1R2p) as ligands in the presence of triethanolamine (TEOA). As the relatively bulky substituents at positions 2 and 9 of R1R2p weakened the ability to coordinate to the Fe ion, the Fe ion formed TEOA complexes. The free R1R2p accepted an electron from the reduced photosensitizer through proton-coupled electron transfer (PCET) using protons of TEOA dissolved in a CH3CN solution in a CO2 atmosphere as the initial step of the catalytic cycle. Although the mixed system of the nonsubstituted 1,10-phenanthroline generates a stable tris(phenanthroline)-Fe(II) complex in solution, this complex could not function as a CO2 reduction catalyst. The mechanism in which R1R2p interacts with the Fe ion after PCET was proposed for this efficient photocatalytic CO2 reduction. The proposed photocatalytic system using the 2,9-di-sec-butyl-phenanthroline ligand could produce CO with high efficiency (quantum yield of 8.2%) combined with a dinuclear Cu(I) complex as a photosensitizer.
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Affiliation(s)
- Hiroyuki Takeda
- Division of Molecular Science, Faculty of Science and Technology, Gunma University, 1-5-1 Tenjin, Kiryu, Gunma 376-8515, Japan
| | - Mina Irimajiri
- Department of Chemistry, School of Science, Tokyo Institute of Technology, 2-12-1-NE-1 O-okayama, Meguro-ku, Tokyo 152-8550, Japan
| | - Toshihide Mizutani
- Department of Chemistry, School of Science, Tokyo Institute of Technology, 2-12-1-NE-1 O-okayama, Meguro-ku, Tokyo 152-8550, Japan
| | - Shunsuke Nozawa
- High Energy Accelerator Research Organization, 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan
| | - Yuna Matsuura
- Division of Molecular Science, Faculty of Science and Technology, Gunma University, 1-5-1 Tenjin, Kiryu, Gunma 376-8515, Japan
| | - Masao Kurosu
- Division of Molecular Science, Faculty of Science and Technology, Gunma University, 1-5-1 Tenjin, Kiryu, Gunma 376-8515, Japan
| | - Osamu Ishitani
- Department of Chemistry, School of Science, Tokyo Institute of Technology, 2-12-1-NE-1 O-okayama, Meguro-ku, Tokyo 152-8550, Japan
- Department of Chemistry, Graduate School of Advanced Science and Engineering, Hiroshima University, 1-3-1 Kagamiyama, Higashihiroshima, Hiroshima 739-8526, Japan
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2
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Álvarez-Rodríguez L, Ríos P, Laglera-Gándara CJ, Jurado A, Fernández-de-Córdova FJ, Gunnoe TB, Rodríguez A. Cleavage of Carbon Dioxide C=O Bond Promoted by Nickel-Boron Cooperativity in a PBP-Ni Complex. Angew Chem Int Ed Engl 2023; 62:e202306315. [PMID: 37399341 DOI: 10.1002/anie.202306315] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Revised: 06/28/2023] [Accepted: 07/03/2023] [Indexed: 07/05/2023]
Abstract
The synthesis and characterization of (tBu PBP)Ni(OAc) (5) by insertion of carbon dioxide into the Ni-C bond of (tBu PBP)NiMe (1) is presented. An unexpected CO2 cleavage process involving the formation of new B-O and Ni-CO bonds leads to the generation of a butterfly-structured tetra-nickel cluster (tBu PBOP)2 Ni4 (μ-CO)2 (6). Mechanistic investigation of this reaction indicates a reductive scission of CO2 by O-atom transfer to the boron atom via a cooperative nickel-boron mechanism. The CO2 activation reaction produces a three-coordinate (tBu P2 BO)Ni-acyl intermediate (A) that leads to a (tBu P2 BO)-NiI complex (B) via a likely radical pathway. The NiI species is trapped by treatment with the radical trap (2,2,6,6-tetramethylpiperidin-1-yl)oxyl (TEMPO) to give (tBu P2 BO)NiII (η2 -TEMPO) (7). Additionally, 13 C and 1 H NMR spectroscopy analysis using 13 C-enriched CO2 provides information about the species involved in the CO2 activation process.
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Affiliation(s)
- Lucía Álvarez-Rodríguez
- Instituto de Investigaciones Químicas-Departamento de Química Inorgánica, Universidad de Sevilla-Consejo Superior de Investigaciones Científicas, Centro de Innovación en Química Avanzada (ORFEO-CINQA), C/Américo Vespucio 49, 41092, Sevilla, Spain
| | - Pablo Ríos
- Instituto de Investigaciones Químicas-Departamento de Química Inorgánica, Universidad de Sevilla-Consejo Superior de Investigaciones Científicas, Centro de Innovación en Química Avanzada (ORFEO-CINQA), C/Américo Vespucio 49, 41092, Sevilla, Spain
| | - Carlos J Laglera-Gándara
- Instituto de Investigaciones Químicas-Departamento de Química Inorgánica, Universidad de Sevilla-Consejo Superior de Investigaciones Científicas, Centro de Innovación en Química Avanzada (ORFEO-CINQA), C/Américo Vespucio 49, 41092, Sevilla, Spain
| | - Andrea Jurado
- Instituto de Investigaciones Químicas-Departamento de Química Inorgánica, Universidad de Sevilla-Consejo Superior de Investigaciones Científicas, Centro de Innovación en Química Avanzada (ORFEO-CINQA), C/Américo Vespucio 49, 41092, Sevilla, Spain
| | - Francisco José Fernández-de-Córdova
- Instituto de Investigaciones Químicas-Departamento de Química Inorgánica, Universidad de Sevilla-Consejo Superior de Investigaciones Científicas, Centro de Innovación en Química Avanzada (ORFEO-CINQA), C/Américo Vespucio 49, 41092, Sevilla, Spain
| | - T Brent Gunnoe
- Department of Chemistry, University of Virginia, Charlottesville, VA 22904, USA
| | - Amor Rodríguez
- Instituto de Investigaciones Químicas-Departamento de Química Inorgánica, Universidad de Sevilla-Consejo Superior de Investigaciones Científicas, Centro de Innovación en Química Avanzada (ORFEO-CINQA), C/Américo Vespucio 49, 41092, Sevilla, Spain
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3
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Zars E, Gravogl L, Gau MR, Carroll PJ, Meyer K, Mindiola DJ. Isostructural bridging diferrous chalcogenide cores [Fe II(μ-E)Fe II] (E = O, S, Se, Te) with decreasing antiferromagnetic coupling down the chalcogenide series. Chem Sci 2023; 14:6770-6779. [PMID: 37350823 PMCID: PMC10283490 DOI: 10.1039/d3sc01094e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Accepted: 05/24/2023] [Indexed: 06/24/2023] Open
Abstract
Iron compounds containing a bridging oxo or sulfido moiety are ubiquitous in biological systems, but substitution with the heavier chalcogenides selenium and tellurium, however, is much rarer, with only a few examples reported to date. Here we show that treatment of the ferrous starting material [(tBupyrpyrr2)Fe(OEt2)] (1-OEt2) (tBupyrpyrr2 = 3,5-tBu2-bis(pyrrolyl)pyridine) with phosphine chalcogenide reagents E = PR3 results in the neutral phosphine chalcogenide adduct series [(tBupyrpyrr2)Fe(EPR3)] (E = O, S, Se; R = Ph; E = Te; R = tBu) (1-E) without any electron transfer, whereas treatment of the anionic starting material [K]2[(tBupyrpyrr2)Fe2(μ-N2)] (2-N2) with the appropriate chalcogenide transfer source yields cleanly the isostructural ferrous bridging mono-chalcogenide ate complexes [K]2[(tBupyrpyrr2)Fe2(μ-E)] (2-E) (E = O, S, Se, and Te) having significant deviation in the Fe-E-Fe bridge from linear in the case of E = O to more acute for the heaviest chalcogenide. All bridging chalcogenide complexes were analyzed using a variety of spectroscopic techniques, including 1H NMR, UV-Vis electronic absorbtion, and 57Fe Mössbauer. The spin-state and degree of communication between the two ferrous ions were probed via SQUID magnetometry, where it was found that all iron centers were high-spin (S = 2) FeII, with magnetic exchange coupling between the FeII ions. Magnetic studies established that antiferromagnetic coupling between the ferrous ions decreases as the identity of the chalcogen is tuned from O to the heaviest congener Te.
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Affiliation(s)
- Ethan Zars
- Department of Chemistry, University of Pennsylvania 231 S 34th St Philadelphia PA 19104 USA
| | - Lisa Gravogl
- Department of Chemistry & Pharmacy, Friedrich-Alexander-Universität Erlangen - Nürnberg (FAU) Egerlandstr. 1 91058 Erlangen Bavaria Germany
| | - Michael R Gau
- Department of Chemistry, University of Pennsylvania 231 S 34th St Philadelphia PA 19104 USA
| | - Patrick J Carroll
- Department of Chemistry, University of Pennsylvania 231 S 34th St Philadelphia PA 19104 USA
| | - Karsten Meyer
- Department of Chemistry & Pharmacy, Friedrich-Alexander-Universität Erlangen - Nürnberg (FAU) Egerlandstr. 1 91058 Erlangen Bavaria Germany
| | - Daniel J Mindiola
- Department of Chemistry, University of Pennsylvania 231 S 34th St Philadelphia PA 19104 USA
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4
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Muthuramalingam S, Velusamy M, Singh Rajput S, Alam M, Mayilmurugan R. Nickel(II) Complexes of Tripodal Ligands as Catalysts for Fixation of Atmospheric CO 2 as Organic Carbonates. Chem Asian J 2023; 18:e202201204. [PMID: 36734191 DOI: 10.1002/asia.202201204] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 01/26/2023] [Accepted: 01/27/2023] [Indexed: 02/04/2023]
Abstract
The fixation of atmospheric CO2 into value-added products is a promising methodology. A series of novel nickel(II) complexes of the type [Ni(L)(CH3 CN)2 ](BPh4 )2 1-5, where L=N,N-bis(2-pyridylmethyl)-N', N'-dimethylpropane-1,3-diamine (L1), N,N-dimethyl-N'-(2-(pyridin-2-yl)ethyl)-N'-(pyridin-2-ylmethyl) propane-1,3-diamine (L2), N,N-bis((4-methoxy-3,5-dimethylpyridin-2-ylmethyl)-N',N'-dimethylpropane-1,3-diamine (L3), N-(2-(dimethylamino) benzyl)-N',N'-dimethyl-N-(pyridin-2-ylmethyl) propane-1,3-diamine (L4) and N,N-bis(2-(dimethylamino)benzyl)-N', N'-dimethylpropane-1,3-diamine (L5) have been synthesized and characterized as the catalysts for the conversion of atmospheric CO2 into organic cyclic carbonates. The single-crystal X-ray structure of 2 was determined and exhibited distorted octahedral coordination geometry with cis-α configuration. The complexes have been used as a catalyst for converting CO2 and epoxides into five-membered cyclic carbonates under 1 atmospheric (atm) pressure at room temperature in the presence of Bu4 NBr. The catalyst containing electron-releasing -Me and -OMe groups afforded the maximum yield of cyclic carbonates, 34% (TON, 680) under 1 atm air. It was drastically enhanced to 89% (TON, 1780) under pure CO2 gas at 1 atm. It is the highest catalytic efficiency known for CO2 fixation using nickel-based catalysts at room temperature and 1 atm pressure. The electronic and steric factors of the ligands strongly influence the catalytic efficiency. Furthermore, all the catalysts can convert a wide range of epoxides (ten examples) into corresponding cyclic carbonate with excellent selectivity (>99%) under this mild condition.
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Affiliation(s)
- Sethuraman Muthuramalingam
- Department of Chemistry, Indian Institute of Technology Bhilai, Raipur, 492015 Chattisgarh, India.,Institut de Química Computacional i Catalisì (IQCC) and Departament de Química, Universitat de Girona, Girona, E-17003 Catalonia, Spain
| | - Marappan Velusamy
- Department of Chemistry, North Eastern Hill University, Shillong, 793022, India
| | - Swati Singh Rajput
- Department of Chemistry, Indian Institute of Technology Bhilai, Raipur, 492015 Chattisgarh, India
| | - Mehboob Alam
- Department of Chemistry, Indian Institute of Technology Bhilai, Raipur, 492015 Chattisgarh, India
| | - Ramasamy Mayilmurugan
- Department of Chemistry, Indian Institute of Technology Bhilai, Raipur, 492015 Chattisgarh, India
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5
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Corona H, Pérez-Jiménez M, de la Cruz-Martínez F, Fernández I, Campos J. Divergent CO 2 Activation by Tuning the Lewis Acid in Iron-Based Bimetallic Systems. Angew Chem Int Ed Engl 2022; 61:e202207581. [PMID: 35930523 DOI: 10.1002/anie.202207581] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Indexed: 01/07/2023]
Abstract
Bimetallic motifs mediate the selective activation and functionalization of CO2 in metalloenzymes and some recent synthetic systems. In this work, we build on the nascent concept of bimetallic frustrated Lewis pairs (FLPs) to investigate the activation and reduction of CO2 . Using the Fe0 fragment [(depe)2 Fe] (depe=1,2-bis(diethylphosphino)ethane) as base, we modify the nature of the partner Lewis acid to accomplish a divergent and highly chemoselective reactivity towards CO2 . [Au(PMe2 Ar)]+ irreversibly dissociates CO2 , Zn(C6 F5 )2 and B(C6 F5 )3 yield different CO2 adducts stabilized by push-pull interactions, while Al(C6 F5 )3 leads to a rare heterobimetallic C-O bond cleavage, and thus to contrasting reduced products after exposure to dihydrogen. Computational investigations provide a rationale for the divergent reactivity, while Energy Decomposition Analysis-Natural Orbital for Chemical Valence (EDA-NOCV) method substantiates the heterobimetallic bonding situation.
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Affiliation(s)
- Helena Corona
- Instituto de Investigaciones Químicas (IIQ), Departamento de Química Inorgánica and Centro de Innovación en Química Avanzada (ORFEO-CINQA), Universidad de Sevilla and Consejo Superior de Investigaciones Científicas (CSIC), Avenida Américo Vespucio 49, 41092, Sevilla, Spain
| | - Marina Pérez-Jiménez
- Instituto de Investigaciones Químicas (IIQ), Departamento de Química Inorgánica and Centro de Innovación en Química Avanzada (ORFEO-CINQA), Universidad de Sevilla and Consejo Superior de Investigaciones Científicas (CSIC), Avenida Américo Vespucio 49, 41092, Sevilla, Spain
| | - Felipe de la Cruz-Martínez
- Instituto de Investigaciones Químicas (IIQ), Departamento de Química Inorgánica and Centro de Innovación en Química Avanzada (ORFEO-CINQA), Universidad de Sevilla and Consejo Superior de Investigaciones Científicas (CSIC), Avenida Américo Vespucio 49, 41092, Sevilla, Spain
| | - Israel Fernández
- Departamento de Química Orgánica I and Centro de Innovación en Química Avanzada (ORFEO-CINQA), Facultad de Ciencias Químicas, Universidad Complutense de Madrid, 28040, Madrid, Spain
| | - Jesús Campos
- Instituto de Investigaciones Químicas (IIQ), Departamento de Química Inorgánica and Centro de Innovación en Química Avanzada (ORFEO-CINQA), Universidad de Sevilla and Consejo Superior de Investigaciones Científicas (CSIC), Avenida Américo Vespucio 49, 41092, Sevilla, Spain
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6
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Corona H, Perez-Jimenez M, de la Cruz-Martínez F, Fernández I, Campos J. Divergent CO2 Activation by Tuning the Lewis Acid in Iron‐Based Bimetallic Systems. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202207581] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Helena Corona
- CSIC: Consejo Superior de Investigaciones Cientificas IIQ SPAIN
| | | | | | - Israel Fernández
- Universidad Complutense de Madrid Facultad de Ciencias Quimicas SPAIN
| | - Jesus Campos
- Consejo Superior de Investigaciones Cientificas Institute of Chemical Research Av. Americo Vespucio 49, Isla de la 41092 Sevilla SPAIN
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7
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Liang H, Beweries T, Francke R, Beller M. Molecular Catalysts for the Reductive Homocoupling of CO
2
towards C
2+
Compounds. Angew Chem Int Ed Engl 2022; 61:e202200723. [PMID: 35187799 PMCID: PMC9311439 DOI: 10.1002/anie.202200723] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Indexed: 11/06/2022]
Abstract
The conversion of CO2 into multicarbon (C2+) compounds by reductive homocoupling offers the possibility to transform renewable energy into chemical energy carriers and thereby create “carbon‐neutral” fuels or other valuable products. Most available studies have employed heterogeneous metallic catalysts, but the use of molecular catalysts is still underexplored. However, several studies have already demonstrated the great potential of the molecular approach, namely, the possibility to gain a deep mechanistic understanding and a more precise control of the product selectivity. This Minireview summarizes recent progress in both the thermo‐ and electrochemical reductive homocoupling of CO2 toward C2+ products mediated by molecular catalysts. In addition, reductive CO homocoupling is discussed as a model for the further conversion of intermediates obtained from CO2 reduction, which may serve as a source of inspiration for developing novel molecular catalysts in the future.
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Affiliation(s)
- Hong‐Qing Liang
- Leibniz-Institute for Catalysis Albert-Einstein-Strasse 29a 18059 Rostock Germany
| | - Torsten Beweries
- Leibniz-Institute for Catalysis Albert-Einstein-Strasse 29a 18059 Rostock Germany
| | - Robert Francke
- Leibniz-Institute for Catalysis Albert-Einstein-Strasse 29a 18059 Rostock Germany
| | - Matthias Beller
- Leibniz-Institute for Catalysis Albert-Einstein-Strasse 29a 18059 Rostock Germany
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8
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Sinhababu S, Lakliang Y, Mankad NP. Recent advances in cooperative activation of CO 2 and N 2O by bimetallic coordination complexes or binuclear reaction pathways. Dalton Trans 2022; 51:6129-6147. [PMID: 35355033 DOI: 10.1039/d2dt00210h] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The gaseous small molecules, CO2 and N2O, play important roles in climate change and ozone layer depletion, and they hold promise as underutilized reagents and chemical feedstocks. However, productive transformations of these heteroallenes are difficult to achieve because of their inertness. In nature, these gases are cycled through ecological systems by metalloenzymes featuring multimetallic active sites that employ cooperative mechanisms. Thus, cooperative bimetallic chemistry is an important strategy for synthetic systems, as well. In this Perspective, recent advances (since 2010) in cooperative activation of CO2 and N2O are reviewed, including examples involving s-block, p-block, d-block, and f-block metals and different combinations thereof.
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Affiliation(s)
- Soumen Sinhababu
- Department of Chemistry, University of Illinois at Chicago, 845 W. Taylor St., Chicago, IL 60607, USA.
| | - Yutthana Lakliang
- Department of Chemistry, University of Illinois at Chicago, 845 W. Taylor St., Chicago, IL 60607, USA.
| | - Neal P Mankad
- Department of Chemistry, University of Illinois at Chicago, 845 W. Taylor St., Chicago, IL 60607, USA.
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9
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Marx M, Frauendorf H, Spannenberg A, Neumann H, Beller M. Revisiting Reduction of CO 2 to Oxalate with First-Row Transition Metals: Irreproducibility, Ambiguous Analysis, and Conflicting Reactivity. JACS AU 2022; 2:731-744. [PMID: 35373201 PMCID: PMC8970009 DOI: 10.1021/jacsau.2c00005] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Indexed: 06/14/2023]
Abstract
Construction of higher C≥2 compounds from CO2 constitutes an attractive transformation inspired by nature's strategy to build carbohydrates. However, controlled C-C bond formation from carbon dioxide using environmentally benign reductants remains a major challenge. In this respect, reductive dimerization of CO2 to oxalate represents an important model reaction enabling investigations on the mechanism of this simplest CO2 coupling reaction. Herein, we present common pitfalls encountered in CO2 reduction, especially its reductive coupling, based on established protocols for the conversion of CO2 into oxalate. Moreover, we provide an example to systematically assess these reactions. Based on our work, we highlight the importance of utilizing suitable orthogonal analytical methods and raise awareness of oxidative reactions that can likewise result in the formation of oxalate without incorporation of CO2. These results allow for the determination of key parameters, which can be used for tailoring of prospective catalytic systems and will promote the advancement of the entire field.
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Affiliation(s)
- Maximilian Marx
- Leibniz-Institut
für Katalyse e.V., Albert-Einstein-Straße 29a, 18059 Rostock, Germany
| | - Holm Frauendorf
- Institut
für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen, Tammannstraße 2, 37077 Göttingen, Germany
| | - Anke Spannenberg
- Leibniz-Institut
für Katalyse e.V., Albert-Einstein-Straße 29a, 18059 Rostock, Germany
| | - Helfried Neumann
- Leibniz-Institut
für Katalyse e.V., Albert-Einstein-Straße 29a, 18059 Rostock, Germany
| | - Matthias Beller
- Leibniz-Institut
für Katalyse e.V., Albert-Einstein-Straße 29a, 18059 Rostock, Germany
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10
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Liang H, Beweries T, Francke R, Beller M. Molecular Catalysts for the Reductive Homocoupling of CO
2
towards C
2+
Compounds. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202200723] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Hong‐Qing Liang
- Leibniz-Institute for Catalysis Albert-Einstein-Strasse 29a 18059 Rostock Germany
| | - Torsten Beweries
- Leibniz-Institute for Catalysis Albert-Einstein-Strasse 29a 18059 Rostock Germany
| | - Robert Francke
- Leibniz-Institute for Catalysis Albert-Einstein-Strasse 29a 18059 Rostock Germany
| | - Matthias Beller
- Leibniz-Institute for Catalysis Albert-Einstein-Strasse 29a 18059 Rostock Germany
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11
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Ilic S, Gesiorski JL, Weerasooriya RB, Glusac KD. Biomimetic Metal-Free Hydride Donor Catalysts for CO 2 Reduction. Acc Chem Res 2022; 55:844-856. [PMID: 35201767 DOI: 10.1021/acs.accounts.1c00708] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The catalytic reduction of carbon dioxide to fuels and value-added chemicals is of significance for the development of carbon recycling technologies. One of the main challenges associated with catalytic CO2 reduction is product selectivity: the formation of carbon monoxide, molecular hydrogen, formate, methanol, and other products occurs with similar thermodynamic driving forces, making it difficult to selectively reduce CO2 to the target product. Significant scientific effort has been aimed at the development of catalysts that can suppress the undesired hydrogen evolution reaction and direct the reaction toward the selective formation of the desired products, which are easy to handle and store. Inspired by natural photosynthesis, where the CO2 reduction is achieved using NADPH cofactors in the Calvin cycle, we explore biomimetic metal-free hydride donors as catalysts for the selective reduction of CO2 to formate. Here, we outline our recent findings on the thermodynamic and kinetic parameters that control the hydride transfer from metal-free hydrides to CO2. By experimentally measuring and theoretically calculating the thermodynamic hydricities of a range of metal-free hydride donors, we derive structural and electronic factors that affect their hydride-donating abilities. Two dominant factors that contribute to the stronger hydride donors are identified to be (i) the stabilization of the positive charge formed upon HT via aromatization or by the presence of electron-donating groups and (ii) the destabilization of hydride donors through the anomeric effect or in the presence of significant structural constrains in the hydride molecule. Hydride donors with appropriate thermodynamic hydricities were reacted with CO2, and the formation of the formate ion (the first reduction step in CO2 reduction to methanol) was confirmed experimentally, providing an important proof of principle that organocatalytic CO2 reduction is feasible. The kinetics of hydride transfer to CO2 were found to be slow, and the sluggish kinetics were assigned in part to the large self-exchange reorganization energy associated with the organic hydrides in the DMSO solvent. Finally, we outline our approaches to the closure of the catalytic cycle via the electrochemical and photochemical regeneration of the hydride (R-H) from the conjugate hydride acceptors (R+). We illustrate how proton-coupled electron transfer can be efficiently utilized not only to lower the electrochemical potential at which the hydride regeneration takes place but also to suppress the unwanted dimerization that neutral radical intermediates tend to undergo. Overall, this account provides a summary of important milestones achieved in organocatalytic CO2 reduction and provides insights into the future research directions needed for the discovery of inexpensive catalysts for carbon recycling.
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Affiliation(s)
- Stefan Ilic
- Department of Chemistry, University of Illinois at Chicago, 845 W. Taylor Street, Chicago, Illinois 60607, United States
- Chemical Sciences and Engineering Division, Argonne National Laboratory, 9700 Cass Avenue, Lemont, Illinois 60439, United States
| | - Jonathan L. Gesiorski
- Department of Chemistry, University of Illinois at Chicago, 845 W. Taylor Street, Chicago, Illinois 60607, United States
| | - Ravindra B. Weerasooriya
- Department of Chemistry, University of Illinois at Chicago, 845 W. Taylor Street, Chicago, Illinois 60607, United States
- Chemical Sciences and Engineering Division, Argonne National Laboratory, 9700 Cass Avenue, Lemont, Illinois 60439, United States
| | - Ksenija D. Glusac
- Department of Chemistry, University of Illinois at Chicago, 845 W. Taylor Street, Chicago, Illinois 60607, United States
- Chemical Sciences and Engineering Division, Argonne National Laboratory, 9700 Cass Avenue, Lemont, Illinois 60439, United States
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12
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Sinhababu S, Radzhabov MR, Telser J, Mankad NP. Cooperative Activation of CO 2 and Epoxide by a Heterobinuclear Al-Fe Complex via Radical Pair Mechanisms. J Am Chem Soc 2022; 144:3210-3221. [PMID: 35157448 DOI: 10.1021/jacs.1c13108] [Citation(s) in RCA: 32] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Activation of inert molecules like CO2 is often mediated by cooperative chemistry between two reactive sites within a catalytic assembly, the most common form of which is Lewis acid/base bifunctionality observed in both natural metalloenzymes and synthetic systems. Here, we disclose a heterobinuclear complex with an Al-Fe bond that instead activates CO2 and other substrates through cooperative behavior of two radical intermediates. The complex Ldipp(Me)AlFp (2, Ldipp = HC{(CMe)(2,6-iPr2C6H3N)}2, Fp = FeCp(CO)2, Cp = η5-C5H5) was found to insert CO2 and cyclohexene oxide, producing LdippAl(Me)(μ:κ2-O2C)Fp (3) and LdippAl(Me)(μ-OC6H10)Fp (4), respectively. Detailed mechanistic studies indicate unusual pathways in which (i) the Al-Fe bond dissociates homolytically to generate formally AlII and FeI metalloradicals, then (ii) the metalloradicals add to substrate in a pairwise fashion initiated by O-coordination to Al. The accessibility of this unusual mechanism is aided, in part, by the redox noninnocent nature of Ldipp that stabilizes the formally AlII intermediates, instead giving them predominantly AlIII-like physical character. The redox noninnocent nature of the radical intermediates was elucidated through direct observation of LdippAl(Me)(OCPh2) (22), a metalloradical species generated by addition of benzophenone to 2. Complex 22 was characterized by X-band EPR, Q-band EPR, and ENDOR spectroscopies as well as computational modeling. The "radical pair" pathway represents an unprecedented mechanism for CO2 activation.
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Affiliation(s)
- Soumen Sinhababu
- Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, Chicago, Illinois 60607, United States
| | - Maxim R Radzhabov
- Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, Chicago, Illinois 60607, United States
| | - Joshua Telser
- Department of Biological, Physical and Health Sciences, Roosevelt University, Chicago, Illinois 60605, United States
| | - Neal P Mankad
- Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, Chicago, Illinois 60607, United States
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13
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Korona K, Kornowicz A, Justyniak I, Terlecki M, Błachowski A, Lewiński J. Non-redox reactivity of V( ii) and Fe( ii) formamidinates towards CO 2 resulting in the formation of novel M( ii) carbamates. Dalton Trans 2022; 51:16557-16564. [DOI: 10.1039/d2dt02274e] [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
Multiple CO2 insertions into the M–N bonds of V(ii) and Fe(ii) bis(formamidinates) led to the isolation of three novel carbamates. The CO2 insertion effectivity depended on the solvent used and the metal centre's coordination sphere geometry.
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Affiliation(s)
- Krzesimir Korona
- Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warszawa, Poland
| | - Arkadiusz Kornowicz
- Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warszawa, Poland
| | - Iwona Justyniak
- Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warszawa, Poland
| | - Michał Terlecki
- Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warszawa, Poland
| | - Artur Błachowski
- AGH University of Science and Technology, Faculty of Geology, Geophysics and Environmental Protection, al. Mickiewicza 30, 30-059 Kraków, Poland
| | - Janusz Lewiński
- Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warszawa, Poland
- Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warszawa, Poland
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14
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Tinnermann H, Sung S, Csókás D, Toh ZH, Fraser C, Young RD. Alkali Metal Adducts of an Iron(0) Complex and Their Synergistic FLP-Type Activation of Aliphatic C-X Bonds. J Am Chem Soc 2021; 143:10700-10708. [PMID: 34251818 DOI: 10.1021/jacs.1c04815] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
We report the formation and full characterization of weak adducts between Li+ and Na+ cations and a neutral iron(0) complex, [Fe(CO)3(PMe3)2] (1), supported by weakly coordinating [BArF20] anions, [1·M][BArF20] (M = Li, Na). The adducts are found to synergistically activate aliphatic C-X bonds (X = F, Cl, Br, I, OMs, OTf), leading to the formation of iron(II) organyl compounds of the type [FeR(CO)3(PMe3)2][BArF20], of which several were isolated and fully characterized. Stoichiometric reactions with the resulting iron(II) organyl compounds show that this system can be utilized for homocoupling and cross-coupling reactions and the formation of new C-E bonds (E = C, H, O, N, S). Further, we utilize [1·M][BArF20] as a catalyst in a simple hydrodehalogenation reaction under mild conditions to showcase its potential use in catalytic reactions. Finally, the mechanism of activation is probed using DFT and kinetic experiments that reveal that the alkali metal and iron(0) center cooperate to cleave C-X via a mechanism closely related to intramolecular FLP activation.
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Affiliation(s)
- Hendrik Tinnermann
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
| | - Simon Sung
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
| | - Dániel Csókás
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
| | - Zhi Hao Toh
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
| | - Craig Fraser
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
| | - Rowan D Young
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
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15
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Muthuramalingam S, Velusamy M, Mayilmurugan R. Fixation of atmospheric CO 2 as C1-feedstock by nickel(ii) complexes. Dalton Trans 2021; 50:7984-7994. [PMID: 34018501 DOI: 10.1039/d0dt03887c] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
The development of molecular catalysts for the activation and conversion of atmospheric carbon dioxide (CO2) into a value-added product is a great challenge. A series of nickel(ii) complexes, [Ni(L)(CH3CN)3](BPh4)2, 1-4 of diazepane based ligands, 4-methyl-1-[(pyridin-2-yl-methyl)]-1,4-diazepane (L1), 4-methyl-1-[2-(pyridine-2-yl)ethyl]-1,4-diazepane (L2), 4-methyl-1-[(quinoline-2-yl)-methyl]-1,4-diazepane (L3) and 1-[(4-methoxy-3,5-dimethyl-pyridin-2-yl)methyl]-4-methyl-1,4-diazepane (L4), have been synthesized and characterized as catalysts for the activation of atmospheric CO2. The single-crystal X-ray structure of 1 shows a distorted octahedral geometry with a cis-β configuration around the NiN6 coordination sphere. All the complexes are used as catalysts for the conversion of atmospheric CO2 and epoxides into cyclic carbonates at 1 atmosphere (atm) pressure and in the presence of Et3N. Catalyst 4 was found to be the most efficient catalyst and showed a 31% formation of cyclic carbonates with a TON of 620 under 1 atm air as the CO2 source. This yield was enhanced to 94% with a TON of 1880 under 1 atm pure CO2 gas and it is the highest catalytic efficiency known for nickel(ii)-based catalysts. Catalyst 4 enabled the transformation of a wide range of epoxides (eight examples) into corresponding cyclic carbonates with excellent selectivity (>99%) and yields of 59-94% and 11-31% under pure CO2 and atmospheric CO2, respectively. The catalytic efficiency is strongly influenced by the electronic nature of the complexes. The CO2 fixation reactions without an epoxide substrate led to the formation of the carbonate bridged dinuclear nickel(ii) complexes [(LNiII)2CO3](BPh4)21a-4a, which are speculated as catalytically active intermediates. The formation of these species was accompanied by the formation of new absorption bands around 592-681 nm and was further confirmed by the ESI-MS and IR spectral studies. The molecular structures of these carbonate-bridged key intermediates were determined by X-ray analysis. The structures contain two Ni2+-centers bridged via a carbonate ion that originated from CO2. Distorted square pyramidal geometries are adopted around each Ni(ii) center. All these results support that CO2 fixation reactions occur via CO2-bound nickel key intermediates.
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Affiliation(s)
- Sethuraman Muthuramalingam
- Bioinorganic Chemistry Laboratory/Physical Chemistry, School of Chemistry, Madurai Kamaraj University, Madurai-625021, India.
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16
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Khamespanah F, Marx M, Crochet DB, Pokharel UR, Fronczek FR, Maverick AW, Beller M. Oxalate production via oxidation of ascorbate rather than reduction of carbon dioxide. Nat Commun 2021; 12:1997. [PMID: 33767134 PMCID: PMC7994792 DOI: 10.1038/s41467-021-21817-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Accepted: 02/02/2021] [Indexed: 11/21/2022] Open
Affiliation(s)
| | - Maximilian Marx
- Leibniz Institute for Catalysis at the University of Rostock, Rostock, Germany
| | - David B Crochet
- Department of Chemistry, Louisiana State University, Baton Rouge, LA, USA
| | - Uttam R Pokharel
- Department of Chemistry, Louisiana State University, Baton Rouge, LA, USA.,Department of Chemistry and Physical Sciences, Nicholls State University, Thibodaux, LA, USA
| | - Frank R Fronczek
- Department of Chemistry, Louisiana State University, Baton Rouge, LA, USA
| | - Andrew W Maverick
- Department of Chemistry, Louisiana State University, Baton Rouge, LA, USA.
| | - Matthias Beller
- Leibniz Institute for Catalysis at the University of Rostock, Rostock, Germany.
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17
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Adamson TT, Kelley SP, Bernskoetter WH. Iron-Mediated C–C Bond Formation via Reductive Coupling with Carbon Dioxide. Organometallics 2020. [DOI: 10.1021/acs.organomet.0c00528] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Tristan T. Adamson
- The Department of Chemistry, The University of Missouri, Columbia, Missouri 65211, United States
| | - Steven P. Kelley
- The Department of Chemistry, The University of Missouri, Columbia, Missouri 65211, United States
| | - Wesley H. Bernskoetter
- The Department of Chemistry, The University of Missouri, Columbia, Missouri 65211, United States
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18
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Ott JC, Wadepohl H, Gade LH. Opening up the Valence Shell: A T-Shaped Iron(I) Metalloradical and Its Potential for Atom Abstraction. Angew Chem Int Ed Engl 2020; 59:9448-9452. [PMID: 32196900 PMCID: PMC7318345 DOI: 10.1002/anie.202003118] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2020] [Indexed: 11/06/2022]
Abstract
A thermally stable, T-shaped, d7 high-spin iron(I) complex was obtained by reduction of a PNP-supported ferrous chloride. Paramagnetic NMR spectroscopy combined with DFT modeling was used to analyze the electronic structure of the coordinatively highly unsaturated complex. The metalloradical character of the compound was demonstrated by the formation of a benzophenone ketyl radical complex upon addition of benzophenone. Furthermore, the compound displays a rich chemistry as an oxygen-atom abstractor from epoxides, yielding a dinuclear, diferrous [Fe2 O] complex.
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Affiliation(s)
- Jonas C. Ott
- Anorganisch-Chemisches InstitutUniversität HeidelbergIm Neuenheimer Feld 27669120HeidelbergGermany
| | - Hubert Wadepohl
- Anorganisch-Chemisches InstitutUniversität HeidelbergIm Neuenheimer Feld 27669120HeidelbergGermany
| | - Lutz H. Gade
- Anorganisch-Chemisches InstitutUniversität HeidelbergIm Neuenheimer Feld 27669120HeidelbergGermany
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19
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Tseng Y, Ching W, Liaw W, Lu T. Dinitrosyl Iron Complex [K‐18‐crown‐6‐ether][(NO)
2
Fe(
Me
PyrCO
2
)]: Intermediate for Capture and Reduction of Carbon Dioxide. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202002977] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Yu‐Ting Tseng
- Department of Chemistry Chung Yuan Christian University Taoyuan 32023 Taiwan
- Department of Chemistry National Tsing Hua University Hsinchu 30013 Taiwan
| | - Wei‐Min Ching
- Institute of Chemistry Academia Sinica Taipei 10529 Taiwan
| | - Wen‐Feng Liaw
- Department of Chemistry National Tsing Hua University Hsinchu 30013 Taiwan
| | - Tsai‐Te Lu
- Department of Chemistry Chung Yuan Christian University Taoyuan 32023 Taiwan
- Institute of Biomedical Engineering National Tsing Hua University Hsinchu 30013 Taiwan
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20
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Tseng Y, Ching W, Liaw W, Lu T. Dinitrosyl Iron Complex [K‐18‐crown‐6‐ether][(NO)
2
Fe(
Me
PyrCO
2
)]: Intermediate for Capture and Reduction of Carbon Dioxide. Angew Chem Int Ed Engl 2020; 59:11819-11823. [DOI: 10.1002/anie.202002977] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Revised: 04/01/2020] [Indexed: 12/18/2022]
Affiliation(s)
- Yu‐Ting Tseng
- Department of Chemistry Chung Yuan Christian University Taoyuan 32023 Taiwan
- Department of Chemistry National Tsing Hua University Hsinchu 30013 Taiwan
| | - Wei‐Min Ching
- Institute of Chemistry Academia Sinica Taipei 10529 Taiwan
| | - Wen‐Feng Liaw
- Department of Chemistry National Tsing Hua University Hsinchu 30013 Taiwan
| | - Tsai‐Te Lu
- Department of Chemistry Chung Yuan Christian University Taoyuan 32023 Taiwan
- Institute of Biomedical Engineering National Tsing Hua University Hsinchu 30013 Taiwan
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21
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Ott JC, Wadepohl H, Gade LH. Öffnung der Valenzschale: Ein T‐förmiges Eisen(I)‐Metalloradikal und sein Potential als Atomabstraktor. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202003118] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Jonas C. Ott
- Anorganisch-Chemisches InstitutUniversität Heidelberg Im Neuenheimer Feld 276 69120 Heidelberg Deutschland
| | - Hubert Wadepohl
- Anorganisch-Chemisches InstitutUniversität Heidelberg Im Neuenheimer Feld 276 69120 Heidelberg Deutschland
| | - Lutz H. Gade
- Anorganisch-Chemisches InstitutUniversität Heidelberg Im Neuenheimer Feld 276 69120 Heidelberg Deutschland
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22
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Leitl J, Marquardt M, Coburger P, Scott DJ, Streitferdt V, Gschwind RM, Müller C, Wolf R. Facile C=O Bond Splitting of Carbon Dioxide Induced by Metal-Ligand Cooperativity in a Phosphinine Iron(0) Complex. Angew Chem Int Ed Engl 2019; 58:15407-15411. [PMID: 31441566 PMCID: PMC6856682 DOI: 10.1002/anie.201909240] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Indexed: 01/08/2023]
Abstract
New iron complexes [Cp*FeL]− (1‐σ and 1‐π, Cp*=C5Me5) containing the chelating phosphinine ligand 2‐(2′‐pyridyl)‐4,6‐diphenylphosphinine (L) have been prepared, and found to undergo facile reaction with CO2 under ambient conditions. The outcome of this reaction depends on the coordination mode of the versatile ligand L. Interaction of CO2 with the isomer 1‐π, in which L binds to Fe through the phosphinine moiety in an η5 fashion, leads to the formation of 3‐π, in which CO2 has undergone electrophilic addition to the phosphinine group. In contrast, interaction with 1‐σ—in which L acts as a σ‐chelating [P,N] ligand—leads to product 3‐σ in which one C=O bond has been completely broken. Such CO2 cleavage reactions are extremely rare for late 3d metals, and this represents the first such example mediated by a single Fe centre.
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Affiliation(s)
- Julia Leitl
- University of Regensburg, Institute of Inorganic Chemistry, 93040, Regensburg, Germany
| | - Michael Marquardt
- Freie Universität Berlin, Institut für Chemie und Biochemie, Fabeckstr. 34/36, 14195, Berlin, Germany
| | - Peter Coburger
- University of Regensburg, Institute of Inorganic Chemistry, 93040, Regensburg, Germany
| | - Daniel J Scott
- University of Regensburg, Institute of Inorganic Chemistry, 93040, Regensburg, Germany
| | - Verena Streitferdt
- University of Regensburg, Institute of Organic Chemistry, 93040, Regensburg, Germany
| | - Ruth M Gschwind
- University of Regensburg, Institute of Organic Chemistry, 93040, Regensburg, Germany
| | - Christian Müller
- Freie Universität Berlin, Institut für Chemie und Biochemie, Fabeckstr. 34/36, 14195, Berlin, Germany
| | - Robert Wolf
- University of Regensburg, Institute of Inorganic Chemistry, 93040, Regensburg, Germany
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23
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24
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Muthuramalingam S, Sankaralingam M, Velusamy M, Mayilmurugan R. Catalytic Conversion of Atmospheric CO2 into Organic Carbonates by Nickel(II) Complexes of Diazepane-Based N4 Ligands. Inorg Chem 2019; 58:12975-12985. [DOI: 10.1021/acs.inorgchem.9b01908] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Sethuraman Muthuramalingam
- Bioinorganic Chemistry Laboratory/Physical Chemistry, School of Chemistry, Madurai Kamaraj University, Madurai 625021, India
| | - Muniyandi Sankaralingam
- Department of Chemistry, National Institute of Technology Calicut, Kozhikode, Kerala 673601, India
| | - Marappan Velusamy
- Department of Chemistry, North Eastern Hill University, Shillong 793022, India
| | - Ramasamy Mayilmurugan
- Bioinorganic Chemistry Laboratory/Physical Chemistry, School of Chemistry, Madurai Kamaraj University, Madurai 625021, India
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25
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Leitl J, Marquardt M, Coburger P, Scott DJ, Streitferdt V, Gschwind RM, Müller C, Wolf R. C=O‐Bindungsspaltung in Kohlendioxid durch einen Eisen(0)‐Phosphininkomplex. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201909240] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Julia Leitl
- Universität Regensburg Institut für Anorganische Chemie 93040 Regensburg Deutschland
| | - Michael Marquardt
- Freie Universität Berlin Institut für Chemie und Biochemie Fabeckstr. 34/36 14195 Berlin Deutschland
| | - Peter Coburger
- Universität Regensburg Institut für Anorganische Chemie 93040 Regensburg Deutschland
| | - Daniel J. Scott
- Universität Regensburg Institut für Anorganische Chemie 93040 Regensburg Deutschland
| | - Verena Streitferdt
- Universität Regensburg Institut für Organische Chemie 93040 Regensburg Deutschland
| | - Ruth M. Gschwind
- Universität Regensburg Institut für Organische Chemie 93040 Regensburg Deutschland
| | - Christian Müller
- Freie Universität Berlin Institut für Chemie und Biochemie Fabeckstr. 34/36 14195 Berlin Deutschland
| | - Robert Wolf
- Universität Regensburg Institut für Anorganische Chemie 93040 Regensburg Deutschland
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26
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Johnson EJ, Kleinlein C, Musgrave RA, Betley TA. Diiron oxo reactivity in a weak-field environment. Chem Sci 2019; 10:6304-6310. [PMID: 31341583 PMCID: PMC6598509 DOI: 10.1039/c9sc00605b] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2019] [Accepted: 05/08/2019] [Indexed: 11/21/2022] Open
Abstract
Concomitant deprotonation and metalation of a dinucleating cofacial Pacman dipyrrin ligand platform tBudmxH2 with Fe2(Mes)4 results in formation of a diiron complex ( tBudmx)Fe2(Mes)2. Treatment of ( tBudmx)Fe2(Mes)2 with one equivalent of water yields the diiron μ-oxo complex ( tBudmx)Fe2(μ-O) and free mesitylene. A two-electron oxidation of ( tBudmx)Fe2(μ-O) gives rise to the diferric complex ( tBudmx)Fe2(μ-O)Cl2, and one-electron reduction from this FeIIIFeIII state allows for isolation of a mixed-valent species [Cp2Co][( tBudmx)Fe2(μ-O)Cl2]. Both ( tBudmx)Fe2(μ-O) and [Cp2Co][( tBudmx)Fe2(μ-O)Cl2] exhibit basic character at the bridging oxygen atom and can be protonated using weak acids to form bridging diferrous hydroxide species. The basicity of the diferrous oxo ( tBudmx)Fe2(μ-O) is quantified through studies of the pK a of its conjugate acid, [( tBudmx)Fe2(μ-OH)]+, which is determined to be 15.3(6); interestingly, upon coordination of neutral solvent ligands to yield ( tBudmx)Fe2(μ-O)(thf)2, the basicity is increased as observed through an increase in the pK a of the conjugate acid [( tBudmx)Fe2(μ-OH)(thf)2]+ to 26.8(6). In contrast, attempts to synthesize a diferric bridging hydroxide by two-electron oxidation of [( tBudmx)Fe2(μ-OH)(thf)2]+ resulted in isolation of ( tBudmx)Fe2(μ-O)Cl2 with concomitant loss of a proton, consistent with the pK a of the conjugate acid [( tBudmx)Fe2(μ-OH)Cl2]+ determined computationally to be -1.8(6). The foregoing results highlight the intricate interplay between oxidation state and reactivity in diiron μ-oxo units.
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Affiliation(s)
- Elizabeth J Johnson
- Department of Chemistry and Chemical Biology , Harvard University , Cambridge , MA 02138 , USA .
| | - Claudia Kleinlein
- Department of Chemistry and Chemical Biology , Harvard University , Cambridge , MA 02138 , USA .
| | - Rebecca A Musgrave
- Department of Chemistry and Chemical Biology , Harvard University , Cambridge , MA 02138 , USA .
| | - Theodore A Betley
- Department of Chemistry and Chemical Biology , Harvard University , Cambridge , MA 02138 , USA .
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27
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Roy L, Al-Afyouni MH, DeRosha DE, Mondal B, DiMucci IM, Lancaster KM, Shearer J, Bill E, Brennessel WW, Neese F, Ye S, Holland PL. Reduction of CO 2 by a masked two-coordinate cobalt(i) complex and characterization of a proposed oxodicobalt(ii) intermediate. Chem Sci 2019; 10:918-929. [PMID: 30774886 PMCID: PMC6346294 DOI: 10.1039/c8sc02599a] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2018] [Accepted: 10/22/2018] [Indexed: 12/31/2022] Open
Abstract
Fixation and chemical reduction of CO2 are important for utilization of this abundant resource, and understanding the detailed mechanism of C-O cleavage is needed for rational development of CO2 reduction methods. Here, we describe a detailed analysis of the mechanism of the reaction of a masked two-coordinate cobalt(i) complex, L tBuCo (where L tBu = 2,2,6,6-tetramethyl-3,5-bis[(2,6-diisopropylphenyl)imino]hept-4-yl), with CO2, which yields two products of C-O cleavage, the cobalt(i) monocarbonyl complex L tBuCo(CO) and the dicobalt(ii) carbonate complex (L tBuCo)2(μ-CO3). Kinetic studies and computations show that the κN,η6-arene isomer of L tBuCo rearranges to the κ2 N,N' binding mode prior to binding of CO2, which contrasts with the mechanism of binding of other substrates to L tBuCo. Density functional theory (DFT) studies show that the only low-energy pathways for cleavage of CO2 proceed through bimetallic mechanisms, and DFT and highly correlated domain-based local pair natural orbital coupled cluster (DLPNO-CCSD(T)) calculations reveal the cooperative effects of the two metal centers during facile C-O bond rupture. A plausible intermediate in the reaction of CO2 with L tBuCo is the oxodicobalt(ii) complex L tBuCoOCoL tBu, which has been independently synthesized through the reaction of L tBuCo with N2O. The rapid reaction of L tBuCoOCoL tBu with CO2 to form the carbonate product indicates that the oxo species is kinetically competent to be an intermediate during CO2 cleavage by L tBuCo. L tBuCoOCoL tBu is a novel example of a thoroughly characterized molecular cobalt-oxo complex where the cobalt ions are clearly in the +2 oxidation state. Its nucleophilic reactivity is a consequence of high charge localization on the μ-oxo ligand between two antiferromagnetically coupled high-spin cobalt(ii) centers, as characterized by DFT and multireference complete active space self-consistent field (CASSCF) calculations.
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Affiliation(s)
- Lisa Roy
- Max Planck Institute for Chemical Energy Conversion , Stiftstraße 34-36 , Mülheim an der Ruhr , D-45470 , Germany
- CSIR Central Mechanical Engineering Research Institute , Durgapur 713209 , India
| | - Malik H Al-Afyouni
- Department of Chemistry , University of Rochester , Rochester , New York 14618 , USA
| | - Daniel E DeRosha
- Department of Chemistry , Yale University , New Haven , Connecticut 06520 , USA .
| | - Bhaskar Mondal
- Max Planck Institute for Chemical Energy Conversion , Stiftstraße 34-36 , Mülheim an der Ruhr , D-45470 , Germany
| | - Ida M DiMucci
- Department of Chemistry and Chemical Biology , Baker Laboratory , Cornell University , Ithaca , New York 14853 , USA
| | - Kyle M Lancaster
- Department of Chemistry and Chemical Biology , Baker Laboratory , Cornell University , Ithaca , New York 14853 , USA
| | - Jason Shearer
- Department of Chemistry , Trinity University , San Antonio , Texas 78212 , USA
| | - Eckhard Bill
- Max Planck Institute for Chemical Energy Conversion , Stiftstraße 34-36 , Mülheim an der Ruhr , D-45470 , Germany
| | - William W Brennessel
- Department of Chemistry , University of Rochester , Rochester , New York 14618 , USA
| | - Frank Neese
- Max Planck Institute for Coal Research , Kaiser-Wilhelm-Platz 1 , Mülheim an der Ruhr , D-45470 , Germany .
| | - Shengfa Ye
- Max Planck Institute for Coal Research , Kaiser-Wilhelm-Platz 1 , Mülheim an der Ruhr , D-45470 , Germany .
| | - Patrick L Holland
- Department of Chemistry , Yale University , New Haven , Connecticut 06520 , USA .
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28
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Willauer AR, Toniolo D, Fadaei-Tirani F, Yang Y, Laurent M, Mazzanti M. Carbon dioxide reduction by dinuclear Yb(ii) and Sm(ii) complexes supported by siloxide ligands. Dalton Trans 2019; 48:6100-6110. [DOI: 10.1039/c9dt00554d] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Low-coordinate dinuclear lanthanide complexes supported by siloxides effect the reduction of carbon dioxide to both carbonate and oxalate, but the cooperative binding of CO2 to the two Ln(ii) cations in the dimer favours oxalate formation.
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Affiliation(s)
- Aurélien R. Willauer
- Institut des Sciences et Ingénierie Chimiques Ecole Polytechnique Fédérale de Lausanne (EPFL)
- 1015 Lausanne
- Switzerland
| | - Davide Toniolo
- Institut des Sciences et Ingénierie Chimiques Ecole Polytechnique Fédérale de Lausanne (EPFL)
- 1015 Lausanne
- Switzerland
| | - Farzaneh Fadaei-Tirani
- Institut des Sciences et Ingénierie Chimiques Ecole Polytechnique Fédérale de Lausanne (EPFL)
- 1015 Lausanne
- Switzerland
| | - Yan Yang
- Université de Toulouse et CNRS INSA
- UPS
- CNRS
- UMR 5215
- LPCNO
| | - Maron Laurent
- Université de Toulouse et CNRS INSA
- UPS
- CNRS
- UMR 5215
- LPCNO
| | - Marinella Mazzanti
- Institut des Sciences et Ingénierie Chimiques Ecole Polytechnique Fédérale de Lausanne (EPFL)
- 1015 Lausanne
- Switzerland
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29
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Reiners M, Maekawa M, Baabe D, Zaretzke MK, Schweyen P, Daniliuc CG, Freytag M, Raeder J, Hohenberger J, Sutter J, Meyer K, Walter MD. Monomeric Fe(iii) half-sandwich complexes [Cp'FeX 2] - synthesis, properties and electronic structure. Dalton Trans 2018; 47:10517-10526. [PMID: 29924109 DOI: 10.1039/c8dt01570h] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The half-sandwich complex [Cp'Fe(μ-I)]2 (1; Cp' = η5-1,2,4-(Me3C)3C5H2) is cleaved when heated in toluene to form a cation-anion pair [{Cp'Fe(η6-toluene)}+{Cp'FeI2}-] (2), in which the two Fe(ii) atoms adopt different spin states, i.e., a low-spin (S = 0) and a high-spin (S = 2) configuration. Upon oxidation of 1 with C2H4I2, the thermally stable 15VE species [Cp'FeI2] (3) can be isolated, in which the Fe(iii) atom adopts an intermediate spin (S = 3/2) configuration. Complex 3 is an excellent starting material for further functionalizations and it reacts with Mg(CH2SiMe3)2 to form the unprecedented Fe(iii) (S = 3/2) bis(alkyl) complex [Cp'Fe(CH2SiMe3)2] (4). The respective spin states of complexes 2-4 are confirmed by single-crystal X-ray crystallography, zero-field 57Fe Mössbauer spectroscopy, and solid-state magnetic susceptibility measurements. In contrast to the related 14VE high-spin (S = 2) Fe(ii) alkyl species [Cp'FeCH(SiMe3)2], which resists the reaction with H2 as a consequence of a spin-induced reaction barrier, complex 4 reacts cleanly with H2 (8 bar) in cyclohexane to yield iron hydrides [{Cp'Fe}2(μ-H)3] (5) and [Cp'Fe(μ-H)2]2 (6) in a 1 : 4 ratio. However, when the hydrogenation of 4 is carried out in benzene, a green 19VE [Cp'Fe(η6-C6H6)] (A) intermediate is formed, which dimerizes to the bis(cyclohexadienyl)-bridged product [(Cp'Fe)2(μ2-η5:η5-C12H12)] (7). Further evidence for the intermediacy of [Cp'Fe(η6-C6H6)] (A) was gathered by X-band EPR and UV/vis spectroscopy. Interestingly, attempts to oxidize 7 with AgSbF6 proceeded via C-C bond cleavage instead of metal oxidation to form [Cp'Fe(C6H6)][SbF6] (8).
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Affiliation(s)
- Matthias Reiners
- Technische Universität Braunschweig, Institut für Anorganische und Analytische Chemie, Hagenring 30, 38106 Braunschweig, Germany.
| | - Miyuki Maekawa
- Technische Universität Braunschweig, Institut für Anorganische und Analytische Chemie, Hagenring 30, 38106 Braunschweig, Germany.
| | - Dirk Baabe
- Technische Universität Braunschweig, Institut für Anorganische und Analytische Chemie, Hagenring 30, 38106 Braunschweig, Germany.
| | - Marc-Kevin Zaretzke
- Technische Universität Braunschweig, Institut für Anorganische und Analytische Chemie, Hagenring 30, 38106 Braunschweig, Germany.
| | - Peter Schweyen
- Technische Universität Braunschweig, Institut für Anorganische und Analytische Chemie, Hagenring 30, 38106 Braunschweig, Germany.
| | - Constantin G Daniliuc
- Technische Universität Braunschweig, Institut für Anorganische und Analytische Chemie, Hagenring 30, 38106 Braunschweig, Germany.
| | - Matthias Freytag
- Technische Universität Braunschweig, Institut für Anorganische und Analytische Chemie, Hagenring 30, 38106 Braunschweig, Germany.
| | - Jan Raeder
- Technische Universität Braunschweig, Institut für Anorganische und Analytische Chemie, Hagenring 30, 38106 Braunschweig, Germany.
| | - Johannes Hohenberger
- Friedrich-Alexander-University of Erlangen-Nürnberg (FAU), Department of Chemistry & Pharmacy, Inorganic Chemistry, Egerlandstr. 1, 91058 Erlangen, Germany
| | - Jörg Sutter
- Friedrich-Alexander-University of Erlangen-Nürnberg (FAU), Department of Chemistry & Pharmacy, Inorganic Chemistry, Egerlandstr. 1, 91058 Erlangen, Germany
| | - Karsten Meyer
- Friedrich-Alexander-University of Erlangen-Nürnberg (FAU), Department of Chemistry & Pharmacy, Inorganic Chemistry, Egerlandstr. 1, 91058 Erlangen, Germany
| | - Marc D Walter
- Technische Universität Braunschweig, Institut für Anorganische und Analytische Chemie, Hagenring 30, 38106 Braunschweig, Germany.
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30
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Ferreira RB, Cook BJ, Knight BJ, Catalano VJ, García-Serres R, Murray LJ. Catalytic Silylation of Dinitrogen by a Family of Triiron Complexes. ACS Catal 2018; 8:7208-7212. [PMID: 30574427 DOI: 10.1021/acscatal.8b02021] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
A series of triiron complexes supported by a tris(β-diketiminate)cyclophane (L 3- ) catalyze the reduction of dinitrogen to tris(trimethylsilyl)amine using KC8 and Me3SiCl. Employing Fe3Br3 L affords 83 ± 7 equiv. NH4 +/complex after protonolysis, which is a 50% yield based on reducing equivalents. The series of triiron compounds tested evidences the subtle effects of ancillary donors, including halides, hydrides, sulfides, and carbonyl ligands, and metal oxidation state on N(SiMe3)3 yield, and highlight Fe3(μ3-N)L as a common species in product mixtures. These results suggest that ancillary ligands can be abstracted with Lewis acids under reducing conditions.
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Affiliation(s)
- Ricardo B. Ferreira
- Center for Catalysis and Florida Center for Heterocyclic Chemistry, Department of Chemistry, University of Florida, Gainesville, Florida 32611, United States
| | - Brian J. Cook
- Center for Catalysis and Florida Center for Heterocyclic Chemistry, Department of Chemistry, University of Florida, Gainesville, Florida 32611, United States
| | - Brian J. Knight
- Center for Catalysis and Florida Center for Heterocyclic Chemistry, Department of Chemistry, University of Florida, Gainesville, Florida 32611, United States
| | - Vincent J. Catalano
- Department of Chemistry, University of Nevada, Reno, Nevada 89557, United States
| | - Ricardo García-Serres
- Université Grenoble Alpes, CNRS, CEA, BIG, LCBM (UMR 5249), F-38054 Grenoble, France
| | - Leslie J. Murray
- Center for Catalysis and Florida Center for Heterocyclic Chemistry, Department of Chemistry, University of Florida, Gainesville, Florida 32611, United States
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Sun Y, Sun X, Huang X. Reaction of CO2 with Atomic Transition Metal M+/0/– Ions: A Theoretical Study. J Phys Chem A 2018; 122:5848-5860. [DOI: 10.1021/acs.jpca.8b01917] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Yunhai Sun
- Institute of Theoretical Chemistry, Jilin University, Changchun 130023, People’s Republic of China
| | - Xiaoli Sun
- Institute of Theoretical Chemistry, Jilin University, Changchun 130023, People’s Republic of China
| | - Xuri Huang
- Institute of Theoretical Chemistry, Jilin University, Changchun 130023, People’s Republic of China
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Cook BJ, Di Francesco GN, Abboud KA, Murray LJ. Countercations and Solvent Influence CO 2 Reduction to Oxalate by Chalcogen-Bridged Tricopper Cyclophanates. J Am Chem Soc 2018; 140:5696-5700. [PMID: 29676578 DOI: 10.1021/jacs.8b02508] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
One-electron reduction of Cu3EL (L3- = tris(β-diketiminate)cyclophane, and E = S, Se) affords [Cu3EL]-, which reacts with CO2 to yield exclusively C2O42- (95% yield, TON = 24) and regenerate Cu3EL. Stopped-flow UV/visible data support an A→B mechanism under pseudo-first-order conditions ( kobs, 298K = 115(2) s-1), which is 106 larger than those for reported copper complexes. The kobs values are dependent on the countercation and solvent (e.g., kobs is greater for [K(18-crown-6)]+ vs (Ph3P)2N+, and there is a 20-fold decrease in kobs in THF vs DMF). Our results suggest a mechanism in which cations and solvent influence the stability of the transition state.
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34
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Iron catalyzed hydrogenation and electrochemical reduction of CO 2 : The role of functional ligands. J Organomet Chem 2018. [DOI: 10.1016/j.jorganchem.2018.02.025] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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35
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Sahoo D, Yoo C, Lee Y. Direct CO 2 Addition to a Ni(0)-CO Species Allows the Selective Generation of a Nickel(II) Carboxylate with Expulsion of CO. J Am Chem Soc 2018; 140:2179-2185. [PMID: 29343060 DOI: 10.1021/jacs.7b11074] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Addition of CO2 to a low-valent nickel species has been explored with a newly designed acriPNP pincer ligand (acriPNP- = 4,5-bis(diisopropylphosphino)-2,7,9,9-tetramethyl-9H-acridin-10-ide). This is a crucial step in understanding biological CO2 conversion to CO found in carbon monoxide dehydrogenase (CODH). A four-coordinate nickel(0) state was reliably accessed in the presence of a CO ligand, which can be prepared from a stepwise reduction of a cationic {(acriPNP)Ni(II)-CO}+ species. All three Ni(II), Ni(I), and Ni(0) monocarbonyl species were cleanly isolated and spectroscopically characterized. Addition of electrons to the nickel(II) species significantly alters its geometry from square planar toward tetrahedral because of the filling of the dx2-y2 orbital. Accordingly, the CO ligand position changes from equatorial to axial, ∠N-Ni-C of 176.2(2)° to 129.1(4)°, allowing opening of a CO2 binding site. Upon addition of CO2 to a nickel(0)-CO species, a nickel(II) carboxylate species with a Ni(η1-CO2-κC) moiety was formed and isolated (75%). This reaction occurs with the concomitant expulsion of CO(g). This is a unique result markedly different from our previous report involving the flexible analogous PNP ligand, which revealed the formation of multiple products including a tetrameric cluster from the reaction with CO2. Finally, the carbon dioxide conversion to CO at a single nickel center is modeled by the successful isolation of all relevant intermediates, such as Ni-CO2, Ni-COOH, and Ni-CO.
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Affiliation(s)
- Dipankar Sahoo
- Department of Chemistry, Korea Advanced Institute of Science and Technology , Daejeon 34141, Republic of Korea
| | - Changho Yoo
- Department of Chemistry, Korea Advanced Institute of Science and Technology , Daejeon 34141, Republic of Korea
| | - Yunho Lee
- Department of Chemistry, Korea Advanced Institute of Science and Technology , Daejeon 34141, Republic of Korea
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36
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Viasus CJ, Alderman NP, Licciulli S, Korobkov I, Gambarotta S. Radical Behavior of CO2versus its Deoxygenation Promoted by Vanadium Aryloxide Complexes: How the Geometry of Intermediate CO2-Adducts Determines the Reactivity. Chemistry 2017; 23:17269-17278. [DOI: 10.1002/chem.201702943] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2017] [Indexed: 01/02/2023]
Affiliation(s)
- Camilo J. Viasus
- Department of Chemistry and Biomolecular Science; University of Ottawa; 10 Marie Curie Ottawa ON Canada
| | - Nicholas P. Alderman
- Department of Chemistry and Biomolecular Science; University of Ottawa; 10 Marie Curie Ottawa ON Canada
| | - Sebastiano Licciulli
- Department of Chemistry and Biomolecular Science; University of Ottawa; 10 Marie Curie Ottawa ON Canada
| | - Ilia Korobkov
- Department of Chemistry and Biomolecular Science; University of Ottawa; 10 Marie Curie Ottawa ON Canada
| | - Sandro Gambarotta
- Department of Chemistry and Biomolecular Science; University of Ottawa; 10 Marie Curie Ottawa ON Canada
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37
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Chu T, Vyboishchikov SF, Gabidullin BM, Nikonov GI. Oxidative Cleavage of the C═N Bond on Al(I). J Am Chem Soc 2017; 139:8804-8807. [DOI: 10.1021/jacs.7b04841] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Terry Chu
- Department
of Chemistry, Brock University, 1812 Sir Isaac Brock Way, St. Catharines, Ontario Canada L2S 3A1
| | - Sergei F. Vyboishchikov
- Institut
de Química Computacional i Catàlisi and Departament
de Química, Universitat de Girona, Carrer Maria Aurèlia Capmany
69, 17003 Girona, Spain
| | - Bulat M. Gabidullin
- X-Ray
Core Facility, Faculty of Science, University of Ottawa, 150 Louis
Pasteur, Ottawa, Ontario, Canada K1N 6N5
| | - Georgii I. Nikonov
- Department
of Chemistry, Brock University, 1812 Sir Isaac Brock Way, St. Catharines, Ontario Canada L2S 3A1
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38
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Lan J, Liao T, Zhang T, Chung LW. Reaction Mechanism of Cu(I)-Mediated Reductive CO2 Coupling for the Selective Formation of Oxalate: Cooperative CO2 Reduction To Give Mixed-Valence Cu2(CO2•–) and Nucleophilic-Like Attack. Inorg Chem 2017; 56:6809-6819. [DOI: 10.1021/acs.inorgchem.6b03080] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jialing Lan
- Department
of Chemistry, South University of Science and Technology of China, Shenzhen 518055, China
| | - Tao Liao
- Department
of Chemistry, South University of Science and Technology of China, Shenzhen 518055, China
| | - Tonghuan Zhang
- Department
of Chemistry, South University of Science and Technology of China, Shenzhen 518055, China
- Lab
of Computational Chemistry and Drug Design, Key Laboratory of Chemical
Genomics, Peking University Shenzhen Graduate School, Shenzhen 518055, China
| | - Lung Wa Chung
- Department
of Chemistry, South University of Science and Technology of China, Shenzhen 518055, China
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39
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Sołtys-Brzostek K, Terlecki M, Sokołowski K, Lewiński J. Chemical fixation and conversion of CO2 into cyclic and cage-type metal carbonates. Coord Chem Rev 2017. [DOI: 10.1016/j.ccr.2016.10.008] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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40
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41
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Yang KD, Lee CW, Jin K, Im SW, Nam KT. Current Status and Bioinspired Perspective of Electrochemical Conversion of CO 2 to a Long-Chain Hydrocarbon. J Phys Chem Lett 2017; 8:538-545. [PMID: 28071909 DOI: 10.1021/acs.jpclett.6b02748] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Electrocatalytic conversion of CO2 into a long-chain hydrocarbon represents an important research direction in adding value to CO2-based chemicals and realizing its practical application. Long-chain hydrocarbons may change the current fossil fuel-based industry in that those chemicals have a similar energy density as gasoline, high compatibility with the current infrastructure, and low hydroscopicity for pipeline distribution. However, most of the electrocatalysts produce C1, C2, and C3 chemicals, and methods for producing long-chain hydrocarbons are not available thus far. Interestingly, nature utilizes many enzymes to generate long-chain hydrocarbons using C2 building blocks and suggests key mechanisms, inspiring new perspective in the design of electrocatalysts. In this Perspective, we present case studies to demonstrate how CO2 and its reductive derivatives interact with the electrode surface during C-C bond formation and introduce how these issues are addressed in biological systems. We end this Perspective by outlining possible strategies to translate the natural mechanism into a heterogeneous electrode.
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Affiliation(s)
- Ki Dong Yang
- Department of Materials Science and Engineering, Seoul National University , Seoul 151-744, Korea
| | - Chan Woo Lee
- Department of Materials Science and Engineering, Seoul National University , Seoul 151-744, Korea
| | - Kyoungsuk Jin
- Department of Materials Science and Engineering, Seoul National University , Seoul 151-744, Korea
| | - Sang Won Im
- Department of Materials Science and Engineering, Seoul National University , Seoul 151-744, Korea
| | - Ki Tae Nam
- Department of Materials Science and Engineering, Seoul National University , Seoul 151-744, Korea
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42
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Chu T, Vyboishchikov SF, Gabidullin B, Nikonov GI. Oxidative Cleavage of C=S and P=S Bonds at an AlI
Center: Preparation of Terminally Bound Aluminum Sulfides. Angew Chem Int Ed Engl 2016; 55:13306-13311. [DOI: 10.1002/anie.201607735] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2016] [Indexed: 11/09/2022]
Affiliation(s)
- Terry Chu
- Department of Chemistry; Brock University; 1812 Sir Isaac Brock Way St. Catharines Ontario L2S 3A1 Canada
| | - Sergei F. Vyboishchikov
- Institut de Química Computacional i Catàlisi and Departament de Química; Carrer Maria Aurèlia Capmany 69 17003 Girona Spain
| | - Bulat Gabidullin
- X-Ray Core Facility; Faculty of Science; University of Ottawa; 150 Louis Pasteur Ottawa Ontario K1N 6N5 Canada
| | - Georgii I. Nikonov
- Department of Chemistry; Brock University; 1812 Sir Isaac Brock Way St. Catharines Ontario L2S 3A1 Canada
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43
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Chu T, Vyboishchikov SF, Gabidullin B, Nikonov GI. Oxidative Cleavage of C=S and P=S Bonds at an AlI
Center: Preparation of Terminally Bound Aluminum Sulfides. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201607735] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Terry Chu
- Department of Chemistry; Brock University; 1812 Sir Isaac Brock Way St. Catharines Ontario L2S 3A1 Canada
| | - Sergei F. Vyboishchikov
- Institut de Química Computacional i Catàlisi and Departament de Química; Carrer Maria Aurèlia Capmany 69 17003 Girona Spain
| | - Bulat Gabidullin
- X-Ray Core Facility; Faculty of Science; University of Ottawa; 150 Louis Pasteur Ottawa Ontario K1N 6N5 Canada
| | - Georgii I. Nikonov
- Department of Chemistry; Brock University; 1812 Sir Isaac Brock Way St. Catharines Ontario L2S 3A1 Canada
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44
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He S, Wang F, Tong WL, Yiu SM, Chan MCW. Topologically diverse shape-persistent bis-(Zn-salphen) catalysts: efficient cyclic carbonate formation under mild conditions. Chem Commun (Camb) 2016; 52:1017-20. [PMID: 26594031 DOI: 10.1039/c5cc08794e] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
By adopting a shape-persistent bimetallic design approach, high initial molecular turnover frequencies (up to 14,800 h(-1)) for coupling of CO2 with epoxides in conjunction with (n)Bu4NI, plus excellent yields under mild conditions (1 bar of CO2, 45 °C) have been achieved for catalysts containing cofacial Zn-salphen units.
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Affiliation(s)
- Shixiong He
- Department of Biology and Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China.
| | - Fuli Wang
- Department of Biology and Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China.
| | - Wah-Leung Tong
- Department of Biology and Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China.
| | - Shek-Man Yiu
- Department of Biology and Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China.
| | - Michael C W Chan
- Department of Biology and Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China.
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45
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Castro L, Mills DP, Jones C, Maron L. Activation of Heteroallenes COxS2-x(x= 0-2): Experimental and Theoretical Evidence of the Synthetic Versatility of a Bulky Guanidinato SmIIComplex. Eur J Inorg Chem 2016. [DOI: 10.1002/ejic.201501346] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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46
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Phanopoulos A, White AJP, Long NJ, Miller PW. Insight into the stereoelectronic parameters of N-triphos ligands via coordination to tungsten(0). Dalton Trans 2016; 45:5536-48. [DOI: 10.1039/c6dt00170j] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
A series of new N-triphos tungsten complexes have been synthesised and structurally characterised.
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47
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Chai GL, Guo ZX. Highly effective sites and selectivity of nitrogen-doped graphene/CNT catalysts for CO 2 electrochemical reduction. Chem Sci 2015; 7:1268-1275. [PMID: 29910883 PMCID: PMC5975832 DOI: 10.1039/c5sc03695j] [Citation(s) in RCA: 169] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2015] [Accepted: 11/11/2015] [Indexed: 12/22/2022] Open
Abstract
The selectivity of CO2 electrochemical reduction can be tuned for N-doped graphene/CNT catalysts after active sites are determined.
Metal-free catalysts, such as graphene/carbon nanostructures, are highly cost-effective to replace expensive noble metals for CO2 reduction if fundamental issues, such as active sites and selectivity, are clearly understood. Using both density functional theory (DFT) and ab initio molecular dynamic calculations, we show that the interplay of N-doping and curvature can effectively tune the activity and selectivity of graphene/carbon-nanotube (CNT) catalysts. The CO2 activation barrier can be optimized to 0.58 eV for graphitic-N doped graphene edges, compared with 1.3 eV in the un-doped counterpart. The graphene catalyst without curvature shows strong selectivity for CO/HCOOH production, whereas the (6, 0) CNT with a high degree of curvature is effective for both CH3OH and HCHO production. Curvature is also very influential to tune the overpotential for a given product, e.g. from 1.5 to 0.02 V for CO production and from 1.29 to 0.49 V for CH3OH production. Hence, the graphene/CNT nanostructures offer great scope and flexibility for effective tunning of catalyst efficiency and selectivity, as shown here for CO2 reduction.
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Affiliation(s)
- Guo-Liang Chai
- Department of Chemistry , University College London , London WC1H 0AJ , UK .
| | - Zheng-Xiao Guo
- Department of Chemistry , University College London , London WC1H 0AJ , UK .
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48
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Hickey AK, Chen CH, Pink M, Smith JM. Low-Valent Iron Carbonyl Complexes with a Tripodal Carbene Ligand. Organometallics 2015. [DOI: 10.1021/acs.organomet.5b00646] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Anne K. Hickey
- Department of Chemistry, Indiana University, 800 East
Kirkwood Avenue, Bloomington, Indiana 47405, United States
| | - Chun-Hsing Chen
- Department of Chemistry, Indiana University, 800 East
Kirkwood Avenue, Bloomington, Indiana 47405, United States
| | - Maren Pink
- Department of Chemistry, Indiana University, 800 East
Kirkwood Avenue, Bloomington, Indiana 47405, United States
| | - Jeremy M. Smith
- Department of Chemistry, Indiana University, 800 East
Kirkwood Avenue, Bloomington, Indiana 47405, United States
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49
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50
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Mondal B, Rana A, Sen P, Dey A. Intermediates Involved in the 2e(-)/2H(+) Reduction of CO2 to CO by Iron(0) Porphyrin. J Am Chem Soc 2015; 137:11214-7. [PMID: 26313628 DOI: 10.1021/jacs.5b05992] [Citation(s) in RCA: 84] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The reduction of CO2 by an iron porphyrin complex with a hydrogen bonding distal pocket involves at least two intermediates. The resonance Raman data of intermediate I, which could only be stabilized at -95 °C, indicates that it is a Fe(II)-CO2(2-) adduct and is followed by an another intermediate II at -80 °C where the bound CO2 in intermediate I is protonated to form a Fe(II)-COOH species. While the initial protonation can be achieved using weak proton sources like MeOH and PhOH, the facile heterolytic cleavage of the C-OH bond in intermediate II requires strong acids.
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Affiliation(s)
- Biswajit Mondal
- Department of Inorganic Chemistry, Indian Association for the Cultivation of Science , Kolkata 700032, India
| | - Atanu Rana
- Department of Inorganic Chemistry, Indian Association for the Cultivation of Science , Kolkata 700032, India
| | - Pritha Sen
- Department of Inorganic Chemistry, Indian Association for the Cultivation of Science , Kolkata 700032, India
| | - Abhishek Dey
- Department of Inorganic Chemistry, Indian Association for the Cultivation of Science , Kolkata 700032, India
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