1
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Masero F, Mougel V. Chemical and redox non-innocence in low-valent molybdenum β diketonate complexes: novel pathways for CO 2 and CS 2 activation. Chem Sci 2024:d4sc03496a. [PMID: 39345770 PMCID: PMC11429171 DOI: 10.1039/d4sc03496a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2024] [Accepted: 09/12/2024] [Indexed: 10/01/2024] Open
Abstract
The investigation of fundamental properties of low-valent molybdenum complexes bearing anionic ligands is crucial for elucidating the molybdenum's role in critical enzymatic systems involved in the transformation of small molecules, including the nitrogenase's iron molybdenum cofactor, FeMoco. The β-diketonate ligands in [Mo(acac)3] (acac = acetylacetonate), one of the earliest low-valent Mo complexes reported, provide a robust anionic platform to stabilize Mo in its +III oxidation state. This complex played a key role in demonstrating the potential of low-valent molybdenum for small molecule activation, serving as the starting material for the preparation of the first reported molybdenum dinitrogen complex. Surprisingly however, given this fact and the widespread use of β-diketonate ligands in coordination chemistry, only a very limited number of low-valent Mo β-diketonate complexes have been reported. To address this gap, we explored the redox behavior of homoleptic molybdenum tris-β-diketonate complexes, employing a tertiary butyl substituted diketonate ligand (dipivaloylmethanate, tBudiket) to isolate and fully characterize the corresponding Mo complexes across three consecutive oxidation states (+IV, +III, +II). We observed marked reactivity of the most reduced congener with heterocumulenes CE2 (E = O, S), yet with very distinct outcomes. Specifically, CO2 stoichiometrically carboxylates one of the β-diketonate ligands, while in the presence of excess CS2, catalytic reductive dimerization to tetrathiooxalate occurs. Through the isolation and characterization of reaction products and intermediates, we demonstrate that the observed reactivity results from the chemical non-innocence of the β-diketonate ligands, which facilitates the formation of a common ligand-bound intermediate, [Mo( tBudiket)2( tBudiket·CE2)]1- (E = O, S). The stability of this proposed intermediate dictates the specific reduction products observed, highlighting the relevance of the chemically non-innocent nature of β-diketonate ligands.
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Affiliation(s)
- Fabio Masero
- Laboratory of Inorganic Chemistry (LAC), Department of Chemistry and Applied Biosciences (D-CHAB), ETH Zurich Vladimir-Prelog Weg 2 8093 Zurich Switzerland
| | - Victor Mougel
- Laboratory of Inorganic Chemistry (LAC), Department of Chemistry and Applied Biosciences (D-CHAB), ETH Zurich Vladimir-Prelog Weg 2 8093 Zurich Switzerland
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2
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Fickenscher ZBG, Lönnecke P, Müller AK, Baumann W, Kirchner B, Hey-Hawkins E. Stronger Together! Mechanistic Investigation into Synergistic Effects during Homogeneous Carbon Dioxide Hydrogenation Using a Heterobimetallic Catalyst. Inorg Chem 2023; 62:12750-12761. [PMID: 37506709 DOI: 10.1021/acs.inorgchem.3c01303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/30/2023]
Abstract
A series of group 6 heterobimetallic complexes [M0;IrIII] (M = Cr, Mo, W) were synthesized and fully characterized, and the catalytic behavior was studied. The heterobimetallic complex [Mo0;IrIII] (C1) was by far the most active and has shown a considerable synergistic effect, with both metals actively participating in homogeneous carbon dioxide hydrogenation, leading to formate salts. Based on theoretical calculations, the synergistic interaction is due to Pauli repulsion, lowering the transition state and thus enabling higher catalytic activity. The mechanism of both the hydrogenation itself and the synergistic interaction was studied by NMR spectroscopy, kinetic measurements, and theoretical calculations. The homogeneous nature of the reaction was proven using in situ high-pressure (HP) NMR experiments. The same experiments also showed that the octahedral Mo(CO)3P3 moiety of the complex is stable under the reaction conditions. The hydride complex is the resting state because the hydride transfer is the rate-determining step. This is supported by kinetic measurements, in situ HP NMR experiments, and theoretical calculations and is in contrast to the monometallic IrIII counterpart of C1.
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Affiliation(s)
- Zeno B G Fickenscher
- Institute of Inorganic Chemistry, Universität Leipzig, Johannisallee 29, D-04103 Leipzig, Germany
| | - Peter Lönnecke
- Institute of Inorganic Chemistry, Universität Leipzig, Johannisallee 29, D-04103 Leipzig, Germany
| | - Anna K Müller
- Mulliken Center for Theoretical Chemistry, Institute for Physical and Theoretical Chemistry, Beringstraße 4, 53115 Bonn, Germany
| | - Wolfgang Baumann
- Leibniz-Institut für Katalyse eV, Albert-Einstein-Straße 29a, 18059 Rostock, Germany
| | - Barbara Kirchner
- Mulliken Center for Theoretical Chemistry, Institute for Physical and Theoretical Chemistry, Beringstraße 4, 53115 Bonn, Germany
| | - Evamarie Hey-Hawkins
- Institute of Inorganic Chemistry, Universität Leipzig, Johannisallee 29, D-04103 Leipzig, Germany
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3
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Fickenscher ZBG, Lönnecke P, Müller AK, Hollóczki O, Kirchner B, Hey-Hawkins E. Synergistic Catalysis in Heterobimetallic Complexes for Homogeneous Carbon Dioxide Hydrogenation. Molecules 2023; 28:molecules28062574. [PMID: 36985546 PMCID: PMC10059594 DOI: 10.3390/molecules28062574] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Revised: 03/03/2023] [Accepted: 03/08/2023] [Indexed: 03/15/2023] Open
Abstract
Two heterobimetallic Mo,M’ complexes (M’ = IrIII, RhIII) were synthesized and fully characterized. Their catalytic activity in homogeneous carbon dioxide hydrogenation to formate was studied. A pronounced synergistic effect between the two metals was found, most notably between Mo and Ir, leading to a fourfold increase in activity compared with a binary mixture of the two monometallic counterparts. This synergism can be attributed to spatial proximity of the two metals rather than electronic interactions. To further understand the nature of this interaction, the mechanism of the CO2 hydrogenation to formate by a monometallic IrIII catalyst was studied using computational and spectroscopic methods. The resting state of the reaction was found to be the metal-base adduct, whereas the rate-determining step is the inner-sphere hydride transfer to CO2. Based on these findings, the synergism in the heterobimetallic complex is beneficial in this key step, most likely by further activating the CO2.
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Affiliation(s)
- Zeno B. G. Fickenscher
- Institute of Inorganic Chemistry, Universität Leipzig, Johannisallee 29, 04103 Leipzig, Germany
| | - Peter Lönnecke
- Institute of Inorganic Chemistry, Universität Leipzig, Johannisallee 29, 04103 Leipzig, Germany
| | - Anna K. Müller
- Mulliken Center for Theoretical Chemistry, Institute for Physical and Theoretical Chemistry, Beringstr. 4, 53115 Bonn, Germany
| | - Oldamur Hollóczki
- Department of Physical Chemistry, Faculty of Science and Technology, University of Debrecen, Egyetem ter 1, H-4010 Debrecen, Hungary
| | - Barbara Kirchner
- Mulliken Center for Theoretical Chemistry, Institute for Physical and Theoretical Chemistry, Beringstr. 4, 53115 Bonn, Germany
| | - Evamarie Hey-Hawkins
- Institute of Inorganic Chemistry, Universität Leipzig, Johannisallee 29, 04103 Leipzig, Germany
- Correspondence:
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4
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Both N, Spannenberg A, Junge K, Beller M. Low-Valent Molybdenum PNP Pincer Complexes as Catalysts for the Semihydrogenation of Alkynes. Organometallics 2022; 41:1797-1805. [PMID: 36156902 PMCID: PMC9490815 DOI: 10.1021/acs.organomet.1c00709] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Low-valent molybdenum PNP pincer complexes were studied as catalysts for the semihydrogenation of alkynes. For that purpose, tBu-substituted PNP complexes PNP tBuMo(CO)2 (6a) and PNP tBuMo(CO)3 (6c) and the NNP complex NNP iPrMo(CO)2(PPh3) ((rac)-7) were synthesized and characterized. By utilizing the cyclohexyl-substituted complex PNPCyMo(CO)2(CH3CN) (5a), several diphenylacetylene derivatives are transformed to the corresponding (Z)-alkenes with good to very good diastereoselectivities (up to 91:9). Mechanistic experiments indicate an outer-sphere mechanism including metal-ligand cooperativity.
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Affiliation(s)
- Niklas
F. Both
- Leibniz-Institut für
Katalyse e.V., Albert-Einstein-Straße 29a, 18059 Rostock, Germany
| | - Anke Spannenberg
- Leibniz-Institut für
Katalyse e.V., Albert-Einstein-Straße 29a, 18059 Rostock, Germany
| | - Kathrin Junge
- 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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5
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Abstract
Abstract
Since the onset of the industrial revolution, fossil fuels have been the primary source of energy generation, and the continued exploitation of fossil fuels has led to an increase in the amount of atmospheric carbon dioxide. A lot of research currently focuses much on decreasing dependence on fossil fuels by replacing them with green energy. However, this technique poses a number of challenges, such as the need for improved infrastructure and technology and the high market penetration of renewable energy technologies. Capturing and converting carbon dioxide using electrochemical approaches can help to stabilize atmospheric greenhouse gas levels and create a positive future for the transformation of carbon dioxide into a number of value-added products. The conversion of carbon dioxide via electrochemical approach is a major challenge, and consideration must be given to the development and production of low-cost, stable, and highly efficient electrocatalysts. Hence, this review presents an overview of the current developments in the electrochemical conversion of carbon dioxide. In addition, this study discusses the current progress of electrocatalysts, in particular, the homogeneous and heterogeneous catalyst, which has a high level of activity and selectivity of low overpotential preferred products. The overview of the mechanisms and kinetics of the carbon dioxide reduction using the computational method are also addressed.
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6
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Molybdenum-Containing Metalloenzymes and Synthetic Catalysts for Conversion of Small Molecules. Catalysts 2021. [DOI: 10.3390/catal11020217] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The energy deficiency and environmental problems have motivated researchers to develop energy conversion systems into a sustainable pathway, and the development of catalysts holds the center of the research endeavors. Natural catalysts such as metalloenzymes have maintained energy cycles on Earth, thus proving themselves the optimal catalysts. In the previous research results, the structural and functional analogs of enzymes and nano-sized electrocatalysts have shown promising activities in energy conversion reactions. Mo ion plays essential roles in natural and artificial catalysts, and the unique electrochemical properties render its versatile utilization as an electrocatalyst. In this review paper, we show the current understandings of the Mo-enzyme active sites and the recent advances in the synthesis of Mo-catalysts aiming for high-performing catalysts.
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7
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Bresciani G, Biancalana L, Pampaloni G, Marchetti F. Recent Advances in the Chemistry of Metal Carbamates. Molecules 2020; 25:E3603. [PMID: 32784784 PMCID: PMC7465543 DOI: 10.3390/molecules25163603] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Revised: 07/31/2020] [Accepted: 08/03/2020] [Indexed: 12/12/2022] Open
Abstract
Following a related review dating back to 2003, the present review discusses in detail the various synthetic, structural and reactivity aspects of metal species containing one or more carbamato ligands, representing a large family of compounds across all the periodic table. A preliminary overview is provided on the reactivity of carbon dioxide with amines, and emphasis is given to recent findings concerning applications in various fields.
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Affiliation(s)
| | | | - Guido Pampaloni
- Department of Chemistry and Industrial Chemistry, University of Pisa, Via G. Moruzzi 13, I-56124 Pisa, Italy; (G.B.); (L.B.)
| | - Fabio Marchetti
- Department of Chemistry and Industrial Chemistry, University of Pisa, Via G. Moruzzi 13, I-56124 Pisa, Italy; (G.B.); (L.B.)
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8
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Mallah J, Ataya M, Hasanayn F. Dimerization of Aldehydes into Esters by an Octahedral d6-Rhodium cis-Dihydride Catalyst: Inner- versus Outer-Sphere Mechanisms. Organometallics 2020. [DOI: 10.1021/acs.organomet.9b00622] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Josephina Mallah
- Department of Chemistry, American University of Beirut, Beirut 1107 2020, Lebanon
| | - Mohamad Ataya
- Department of Chemistry, American University of Beirut, Beirut 1107 2020, Lebanon
| | - Faraj Hasanayn
- Department of Chemistry, American University of Beirut, Beirut 1107 2020, Lebanon
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9
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Álvarez M, Galindo A, Pérez PJ, Carmona E. Molybdenum and tungsten complexes with carbon dioxide and ethylene ligands. Chem Sci 2019; 10:8541-8546. [PMID: 32110290 PMCID: PMC7006629 DOI: 10.1039/c9sc03225h] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2019] [Accepted: 08/12/2019] [Indexed: 11/21/2022] Open
Abstract
The first examples of stable metal complexes with coordinated ethylene and carbon dioxide ligands are reported. Reaction of tris(ethylene) complexes mer-M(C2H4)3(PNP) (M = Mo and W; PNP = 2,6-bis(diphenylphosphinomethyl)pyridine) with CO2 yields the corresponding, mixed cis-M(C2H4)2(CO2)(PNP) derivatives. X-ray studies reveal six-coordinate structures exhibiting η2-ethylene and κ2-C,O carbon dioxide coordination. Remarkably, the formation of the molybdenum CO2 adduct occurs also in the solid state at room temperature, under 4 bar of CO2, in a nearly quantitative manner.
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Affiliation(s)
- María Álvarez
- Laboratorio de Catálisis Homogénea , Unidad Asociada al CSIC , CIQSO-Centro de Investigación en Química Sostenible , Departamento de Química , Universidad de Huelva , 21007-Huelva , Spain .
| | - Agustín Galindo
- Departamento de Química Inorgánica , Universidad de Sevilla , Apartado 1203 , 41071 Sevilla , Spain .
| | - Pedro J Pérez
- Laboratorio de Catálisis Homogénea , Unidad Asociada al CSIC , CIQSO-Centro de Investigación en Química Sostenible , Departamento de Química , Universidad de Huelva , 21007-Huelva , Spain .
| | - Ernesto Carmona
- Instituto de Investigaciones Químicas (IIQ) , Departamento de Química Inorgánica , Centro de Innovación en Química, Avanzada (ORFEO-CINQA) , Universidad de Sevilla , Consejo Superior de Investigaciones Científicas (CSIC) , Sevilla , Spain
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10
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Shiekh BA, Kaur D, Kumar S. Bio-mimetic self-assembled computationally designed catalysts of Mo and W for hydrogenation of CO 2/dehydrogenation of HCOOH inspired by the active site of formate dehydrogenase. Phys Chem Chem Phys 2019; 21:21370-21380. [PMID: 31531468 DOI: 10.1039/c9cp03406d] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Density functional theory modelling has been used to design Mo and W-based catalysts MoIII(tBu)(CO) and WIII(tBu)(CO) for CO2 hydrogenation and HCOOH dehydrogenation, which are bio-mimics of the active site of formate dehydrogenase. Based on DFT calculations, the molybdenum and tungsten based complexes are good catalysts in the +3 oxidation state for CO2 hydrogenation with free energies of 24.03 and 21.31 kcal mol-1, respectively. Such a low barrier indicates that our newly designed Mo and W-based complexes are very efficient for CO2 hydrogenation or HCOOH dehydrogenation catalysis. Overall, our computational results provide in depth insights that can serve as a great tool for the design and development of new and efficient molybdenum and tungsten based catalysts for CO2 hydrogenation or HCOOH dehydrogenation.
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Affiliation(s)
- Bilal Ahmad Shiekh
- Department of Chemistry, UGC Sponsored Centre of Advanced Studies-II, Guru Nanak Dev University, Amritsar-143005, India.
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11
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Cook BJ, Polezhaev AV, Chen CH, Pink M, Caulton KG. A multimetal-ligand cooperative approach to CO2 activation. Inorganica Chim Acta 2018. [DOI: 10.1016/j.ica.2018.08.039] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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12
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Hopkins MN, Shimmei K, Uttley KB, Bernskoetter WH. Synthesis and Reactivity of 1,2-Bis(di-iso-propylphosphino)benzene Nickel Complexes: A Study of Catalytic CO2–Ethylene Coupling. Organometallics 2018. [DOI: 10.1021/acs.organomet.8b00260] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Melissa N. Hopkins
- The Department of Chemistry, The University of Missouri, Columbia, Missouri 65211, United States
| | | | - Katherine B. Uttley
- 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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13
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Joannou MV, Bezdek MJ, Chirik PJ. Pyridine(diimine) Molybdenum-Catalyzed Hydrogenation of Arenes and Hindered Olefins: Insights into Precatalyst Activation and Deactivation Pathways. ACS Catal 2018. [DOI: 10.1021/acscatal.8b00924] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Matthew V. Joannou
- Department of Chemistry, Princeton University, Princeton, New Jersey 08544, United States
| | - Máté J. Bezdek
- Department of Chemistry, Princeton University, Princeton, New Jersey 08544, United States
| | - Paul J. Chirik
- Department of Chemistry, Princeton University, Princeton, New Jersey 08544, United States
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14
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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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16
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17
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Grice KA. Carbon dioxide reduction with homogenous early transition metal complexes: Opportunities and challenges for developing CO 2 catalysis. Coord Chem Rev 2017. [DOI: 10.1016/j.ccr.2017.01.007] [Citation(s) in RCA: 102] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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18
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Wu XF, Zheng F. Synthesis of Carboxylic Acids and Esters from CO 2. Top Curr Chem (Cham) 2016; 375:4. [PMID: 27957706 DOI: 10.1007/s41061-016-0091-6] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2016] [Accepted: 11/23/2016] [Indexed: 12/20/2022]
Abstract
The achievements in the synthesis of carboxylic acids and esters from CO2 have been summarized and discussed.
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Affiliation(s)
- Xiao-Feng Wu
- Department of Chemistry, Zhejiang Sci-Tech University, Xiasha Campus, Hangzhou, 310018, People's Republic of China.
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock, Albert-Einstein-Straße 29a, 18059, Rostock, Germany.
| | - Feng Zheng
- Hangzhou Branch of Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, 600 No. 21 Street, Hangzhou, China.
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19
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Yuan R, Hu R, Fu G. Mechanistic Insight into the Copper-Catalyzed Regiodivergent Silacarboxylation of Allenes with CO2. Chem Asian J 2016; 11:2201-9. [DOI: 10.1002/asia.201600739] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2016] [Indexed: 12/11/2022]
Affiliation(s)
- Ruming Yuan
- State Key Laboratory for Physical Chemistry of Solid Surfaces; Collaborative Innovation Center of Chemistry for Energy Materials
- Department of Chemistry; College of Chemistry and Chemical Engineering; Xiamen University; Xiamen 361005 P. R. China
| | - Rong Hu
- State Key Laboratory for Physical Chemistry of Solid Surfaces; Collaborative Innovation Center of Chemistry for Energy Materials
- Department of Chemistry; College of Chemistry and Chemical Engineering; Xiamen University; Xiamen 361005 P. R. China
| | - Gang Fu
- State Key Laboratory for Physical Chemistry of Solid Surfaces; Collaborative Innovation Center of Chemistry for Energy Materials
- Department of Chemistry; College of Chemistry and Chemical Engineering; Xiamen University; Xiamen 361005 P. R. China
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20
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Transition metal mediated coupling of carbon dioxide and ethene to acrylic acid/acrylates. Coord Chem Rev 2016. [DOI: 10.1016/j.ccr.2015.10.002] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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21
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Zhang Y, Williard PG, Bernskoetter WH. Synthesis and Characterization of Pincer-Molybdenum Precatalysts for CO2 Hydrogenation. Organometallics 2016. [DOI: 10.1021/acs.organomet.5b00955] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yuanyuan Zhang
- Department
of Chemistry, University of Missouri, Columbia, Missouri 65211, United States
- Department
of Chemistry, Brown University, Providence, Rhode Island 02912, United States
| | - Paul G. Williard
- Department
of Chemistry, Brown University, Providence, Rhode Island 02912, United States
| | - Wesley H. Bernskoetter
- Department
of Chemistry, University of Missouri, Columbia, Missouri 65211, United States
- Department
of Chemistry, Brown University, Providence, Rhode Island 02912, United States
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22
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Petuker A, Merz K, Merten C, Apfel UP. Controlled Flexible Coordination in Tripodal Iron(II) Phosphane Complexes: Effects on Reactivity. Inorg Chem 2016; 55:1183-91. [DOI: 10.1021/acs.inorgchem.5b02361] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Anette Petuker
- Inorganic Chemistry I and ‡Physical Organic Chemistry, Ruhr University Bochum, Universitätsstraße 150, 44801 Bochum, Germany
| | - Klaus Merz
- Inorganic Chemistry I and ‡Physical Organic Chemistry, Ruhr University Bochum, Universitätsstraße 150, 44801 Bochum, Germany
| | - Christian Merten
- Inorganic Chemistry I and ‡Physical Organic Chemistry, Ruhr University Bochum, Universitätsstraße 150, 44801 Bochum, Germany
| | - Ulf-Peter Apfel
- Inorganic Chemistry I and ‡Physical Organic Chemistry, Ruhr University Bochum, Universitätsstraße 150, 44801 Bochum, Germany
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23
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Li S, Sun J, Zhang Z, Xie R, Fang X, Zhou M. Carboxylation of terminal alkynes with CO2using novel silver N-heterocyclic carbene complexes. Dalton Trans 2016; 45:10577-84. [DOI: 10.1039/c6dt01746k] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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24
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Pal R, Groy TL, Trovitch RJ. Conversion of Carbon Dioxide to Methanol Using a C–H Activated Bis(imino)pyridine Molybdenum Hydroboration Catalyst. Inorg Chem 2015. [DOI: 10.1021/acs.inorgchem.5b01102] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Raja Pal
- Department of Chemistry and
Biochemistry, Arizona State University, Tempe, Arizona 85287, United States
| | - Thomas L. Groy
- Department of Chemistry and
Biochemistry, Arizona State University, Tempe, Arizona 85287, United States
| | - Ryan J. Trovitch
- Department of Chemistry and
Biochemistry, Arizona State University, Tempe, Arizona 85287, United States
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25
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Yuan R, Lin Z. Mechanistic Insight into the Gold-Catalyzed Carboxylative Cyclization of Propargylamines. ACS Catal 2015. [DOI: 10.1021/acscatal.5b00252] [Citation(s) in RCA: 69] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ruming Yuan
- Department
of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, People’s Republic of China
- Department
of Chemistry, Xiamen University, Xiamen 361005, People’s Republic of China
| | - Zhenyang Lin
- Department
of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, People’s Republic of China
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26
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Acrylates from Alkenes and CO2, the Stuff That Dreams Are Made of. ADVANCES IN ORGANOMETALLIC CHEMISTRY 2015. [DOI: 10.1016/bs.adomc.2015.03.001] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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Kirillov E, Carpentier JF, Bunel E. Carboxylic acid derivatives via catalytic carboxylation of unsaturated hydrocarbons: whether the nature of a reductant may determine the mechanism of CO2incorporation? Dalton Trans 2015; 44:16212-23. [DOI: 10.1039/c5dt02350e] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Advances and recent breakthroughs in catalytic synthesis of carboxylic acids and their derivatives starting from unsaturated hydrocarbons are discussed.
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Affiliation(s)
- E. Kirillov
- Organometallics
- Materials and Catalysis Dept
- Institut des Sciences Chimiques de Rennes
- UMR 6226 CNRS – Université de Rennes 1
- F-35042 Rennes Cedex
| | - J.-F. Carpentier
- Organometallics
- Materials and Catalysis Dept
- Institut des Sciences Chimiques de Rennes
- UMR 6226 CNRS – Université de Rennes 1
- F-35042 Rennes Cedex
| | - E. Bunel
- Chemical Sciences and Engineering Division
- Argonne National Laboratory
- Argonne
- USA
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28
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Yuan R, Lin Z. Computational Insight into the Mechanism of Nickel-Catalyzed Reductive Carboxylation of Styrenes using CO2. Organometallics 2014. [DOI: 10.1021/om500962a] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Ruming Yuan
- Department
of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay,
Kowloon, Hong Kong, People’s Republic of China
- Department
of Chemistry, Xiamen University, Xiamen 361005, People’s Republic of China
| | - Zhenyang Lin
- Department
of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay,
Kowloon, Hong Kong, People’s Republic of China
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29
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Yuan R, Lin Z. Mechanism for the Carboxylative Coupling Reaction of a Terminal Alkyne, CO2, and an Allylic Chloride Catalyzed by the Cu(I) Complex: A DFT Study. ACS Catal 2014. [DOI: 10.1021/cs5011184] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Ruming Yuan
- Department
of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, People’s Republic of China
- Department
of Chemistry, Xiamen University, Xiamen 361005, People’s Republic of China
| | - Zhenyang Lin
- Department
of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, People’s Republic of China
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30
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Greenburg ZR, Jin D, G. Williard P, Bernskoetter WH. Nickel promoted functionalization of CO2to anhydrides and ketoacids. Dalton Trans 2014; 43:15990-6. [DOI: 10.1039/c4dt01221f] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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31
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Hanna BS, MacIntosh AD, Ahn S, Tyler BT, Palmore GTR, Williard PG, Bernskoetter WH. Ancillary Ligand Effects on Carbon Dioxide-Ethylene Coupling at Zerovalent Molybdenum. Organometallics 2014. [DOI: 10.1021/om500324h] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Brian S. Hanna
- Department of Chemistry and ‡School of Engineering, Brown University, Providence, Rhode Island 02912, United States
| | - Alex D. MacIntosh
- Department of Chemistry and ‡School of Engineering, Brown University, Providence, Rhode Island 02912, United States
| | - Steven Ahn
- Department of Chemistry and ‡School of Engineering, Brown University, Providence, Rhode Island 02912, United States
| | - Brian T. Tyler
- Department of Chemistry and ‡School of Engineering, Brown University, Providence, Rhode Island 02912, United States
| | - G. Tayhas R. Palmore
- Department of Chemistry and ‡School of Engineering, Brown University, Providence, Rhode Island 02912, United States
| | - Paul G. Williard
- Department of Chemistry and ‡School of Engineering, Brown University, Providence, Rhode Island 02912, United States
| | - Wesley H. Bernskoetter
- Department of Chemistry and ‡School of Engineering, Brown University, Providence, Rhode Island 02912, United States
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32
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Schäffner B, Blug M, Kruse D, Polyakov M, Köckritz A, Martin A, Rajagopalan P, Bentrup U, Brückner A, Jung S, Agar D, Rüngeler B, Pfennig A, Müller K, Arlt W, Woldt B, Grass M, Buchholz S. Synthesis and application of carbonated fatty acid esters from carbon dioxide including a life cycle analysis. CHEMSUSCHEM 2014; 7:1133-1139. [PMID: 24616303 DOI: 10.1002/cssc.201301115] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2013] [Revised: 01/15/2014] [Indexed: 06/03/2023]
Abstract
Carbon dioxide can be used in various ways as a cheap C1 source. However, the utilization of CO2 requires energy or energy-rich reagents, which leads to further emissions, and therefore, diminishes the CO2-saving potential. Therefore, life cycle assessment (LCA) is required for each process that uses CO2 to provide valid data for CO2 savings. Carbon dioxide can be incorporated into epoxidized fatty acid esters to provide the corresponding carbonates. A robust catalytic process was developed based on simple halide salts in combination with a phase-transfer catalyst. The CO2-saving potential was determined by comparing the carbonates as a plasticizer with an established phthalate-based plasticizer. Although CO2 savings of up to 80 % were achieved, most of the savings arose from indirect effects and not from CO2 utilization. Furthermore, other categories have been analyzed in the LCA. The use of biobased material has a variety of impacts on categories such as eutrophication and marine toxicity. Therefore, the benefits of biobased materials have to be evaluated carefully for each case. Finally, interesting properties as plasticizers were obtained with the carbonates. The volatility and water extraction could be improved relative to the epoxidized system.
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Affiliation(s)
- Benjamin Schäffner
- Evonik Industries AG, Paul-Baumann-Str. 1, 45772 Marl (Germany) http://www.evonik.com http://ww.creavis.de.
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33
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Muhammad S, Moncho S, Brothers EN, Bengali AA. Dehydrogenation of a tertiary amine-borane by a rhenium complex. Chem Commun (Camb) 2014; 50:5874-7. [DOI: 10.1039/c4cc01771d] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Photolysis of CpRe(CO)3 in the presence of H3BNEt3 results in the dehydrogenation of the borane and formation of trans-CpRe(CO)2(H)2.
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Affiliation(s)
- Sohail Muhammad
- Department of Chemistry
- Texas A&M University at Qatar
- Doha, Qatar
| | - Salvador Moncho
- Department of Chemistry
- Texas A&M University at Qatar
- Doha, Qatar
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