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Wani AA, Carballo JJG, Jayaprakash H, Wörle M, Widera A, Togni A, Grützmacher H. A Simple Manganese(I) Catalyst for the Efficient and Selective Hydrophosphination of Olefins with PH 3, Primary, and Secondary Phosphanes. Chemistry 2024; 30:e202303848. [PMID: 38312108 DOI: 10.1002/chem.202303848] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2024] [Revised: 02/04/2024] [Accepted: 02/05/2024] [Indexed: 02/06/2024]
Abstract
A tridentate ligand L with a P,NH,N donor motif was synthesized in few steps from commercially available precursors. Upon reaction with [MnBr(CO)5], an octahedral 18-electron complex [Mn(CO)3(L)]Br (1) is obtained in which L adopts a facial arrangement. After deprotonation of the NH group in the cationic complex unit, a neutral Mn(I) amido complex [Mn(CO)2(L-H)] (2) is formed under loss of CO. Rearrangement of L-H leads to a trigonal bipyramidal structure in which the P and N donor centers are in trans position. Further deprotonation of 2 results in a dep-blue anionic complex fragment [Mn(CO)2(L-2H)]- (3). DFT calculations and a QTAIM analysis show that the amido complex 2 contains a Mn-N bond with partial double bond character and 3 an aromatic MnN2C2 ring. The anion [Mn(CO)2(L-2H)]- reacts with Ph2PH to give a phosphido complex, which serves as phosphide transfer reagent to activated olefins. But the catalytic activity is low. However, the neutral amido complex 2 is an excellent catalyst and with loadings as low as 0.04 mol %, turn over frequencies of >40'000 h-1 can be achieved. Furthermore, secondary and primary alkyl phosphines as well as PH3 can be added in a catalytic hydrophosphination reaction to a wide range of activated olefins such as α,β-unsaturated aldehydes, ketones, esters, and nitriles. But also, vinyl pyridine and some styrene derivatives are converted into the corresponding phosphanes.
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Affiliation(s)
- Aabid A Wani
- Department of Chemistry and Applied Biosciences ETH, Zürich, Vladimir-Prelog-Weg 1, CH-8093, Zurich, Switzerland
| | - Juan José Gamboa Carballo
- Department of Chemistry and Applied Biosciences ETH, Zürich, Vladimir-Prelog-Weg 1, CH-8093, Zurich, Switzerland
- Higher Institute of Technologies and Applied Sciences (InSTEC), University of Havana, Ave. S., Allende 1110, 10600 Havana, Cuba
| | - Harikrishnan Jayaprakash
- Department of Chemistry and Applied Biosciences ETH, Zürich, Vladimir-Prelog-Weg 1, CH-8093, Zurich, Switzerland
| | - Michael Wörle
- Department of Chemistry and Applied Biosciences ETH, Zürich, Vladimir-Prelog-Weg 1, CH-8093, Zurich, Switzerland
| | - Anna Widera
- Department of Chemistry and Applied Biosciences ETH, Zürich, Vladimir-Prelog-Weg 1, CH-8093, Zurich, Switzerland
| | - Antonio Togni
- Department of Chemistry and Applied Biosciences ETH, Zürich, Vladimir-Prelog-Weg 1, CH-8093, Zurich, Switzerland
| | - Hansjörg Grützmacher
- Department of Chemistry and Applied Biosciences ETH, Zürich, Vladimir-Prelog-Weg 1, CH-8093, Zurich, Switzerland
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2
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Tsai CP, Chen CY, Lin YL, Lan JC, Tsai ML. Catalytic Dehydrogenation of Formic Acid Promoted by Triphos-Co Complexes: Two Competing Pathways for H 2 Production. Inorg Chem 2024; 63:1759-1773. [PMID: 38217506 DOI: 10.1021/acs.inorgchem.3c02959] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2024]
Abstract
In this study, we reported the synthesis and structural characterization of a triphos-CoII complex [(κ3-triphos)CoII(CH3CN)2]2+ (1) and a triphos-CoI-H complex [(κ2-triphos)HCoI(CO)2] (4). The facile synthetic pathways from 1 to [(κ3-triphos)CoII(κ2-O2CH)]+ (1') and [(κ3-triphos)CoI(CH3CN)]+ (2), respectively, as well as the interconversion between [(κ3-triphos)CoI(CO)2]+ (3) and 4 have been established. The activation energy barrier, associated with the dehydrogenation of a coordinated formate fragment in 1' yielding the corresponding 2 accompanied by the formation of H2 and CO2, was experimentally determined as 23.9 kcal/mol. With 0.01 mol % loading of 1, a maximum TON ∼ 1735 within 18 h and TOF ∼ 483 h-1 for the first 3 h could be achieved. Kinetic isotope effect (KIE) values of 2.25 (kHCOOH/kDCOOH) and 1.36 (kHCOOH/kHCOOD) for the dehydrogenation of formic acid and its deuterated derivatives, respectively, implicate that the H-COOH bond cleavage is likely the rate-determining step. The catalytic mechanism proposed by density functional theory (DFT) calculations coupled with experimental 1H NMR and gas chromatography-mass spectrometry (GC-MS) analysis unveils two competing pathways for H2 production; specifically, deprotonating a HCOO-H bond by a proposed Co-H intermediate C and homolytic cleavage of the CoII-H moiety of C, presumably via a dimeric Co intermediate D containing a [Co2(μ-H)2]2+ core, to yield the corresponding 2 and H2.
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Affiliation(s)
- Chou-Pen Tsai
- Department of Chemistry, National Sun Yat-sen University, Kaohsiung 80424, Taiwan
| | - Chih-Yao Chen
- Department of Chemistry, National Sun Yat-sen University, Kaohsiung 80424, Taiwan
| | - Yi-Lin Lin
- Department of Chemistry, National Sun Yat-sen University, Kaohsiung 80424, Taiwan
| | - Jen-Chen Lan
- Department of Chemistry, National Sun Yat-sen University, Kaohsiung 80424, Taiwan
| | - Ming-Li Tsai
- Department of Chemistry, National Sun Yat-sen University, Kaohsiung 80424, Taiwan
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3
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Mishra A, Srivastava D, Raj D, Patra N, Padhi SK. Formate dehydrogenase activity by a Cu(II)-based molecular catalyst and deciphering the mechanism using DFT studies. Dalton Trans 2024; 53:1209-1220. [PMID: 38108489 DOI: 10.1039/d3dt03023g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2023]
Abstract
Due to the requirement to establish renewable energy sources, formic acid (FA), one of the most probable liquid organic hydrogen carriers (LOHCs), has received great attention. Catalytic formic acid dehydrogenation in an effective and environmentally friendly manner is still a challenge. The N3Q3 ligand (N3Q3 = N,N-bis(quinolin-8-ylmethyl)quinolin-8-amine) and the square pyramidal [Cu(N3Q3)Cl]Cl complex have been synthesised in this work and characterised using several techniques, such as NMR spectroscopy, mass spectrometry, EPR spectroscopy, cyclic voltammetry, X-ray diffraction and DFT calculations. This work investigates the dehydrogenation of formic acid using a molecular and homogeneous catalyst [Cu(N3Q3)Cl]Cl in the presence of HCOONa. The mononuclear copper complex exhibits catalytic activity towards the dehydrogenation of formic acid in H2O with the evolution of a 1 : 1 CO2 and H2 mixture. The activation energy of formic acid dehydrogenation was calculated to be Ea = 86 kJ mol-1, based on experiments carried out at various temperatures. The Gibbs free energy was found to be 82 kJ at 298 K for the decomposition of HCOOH. The DFT studies reveal that [Cu(N3Q3)(HCOO-)]+ undergoes an uphill process of rearrangement followed by decarboxylation to generate [Cu(N3Q3)(H-)]+. The initial uphill step for forming a transition state is the rate-determining step. The [Cu(N3Q3)(H-)]+ follows an activated state in the presence of HCOOH to liberate H2 and generate the [Cu(N3Q3)(OH2)]2+.
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Affiliation(s)
- Aman Mishra
- Artificial Photosynthesis Laboratory, Department of Chemistry and Chemical Biology, Indian Institute of Technology (Indian School of Mines), Dhanbad, 826004, India.
| | - Diship Srivastava
- Department of Chemistry and Chemical Biology, Indian Institute of Technology (Indian School of Mines), Dhanbad, 826004, India
| | - Dev Raj
- Artificial Photosynthesis Laboratory, Department of Chemistry and Chemical Biology, Indian Institute of Technology (Indian School of Mines), Dhanbad, 826004, India.
| | - Niladri Patra
- Department of Chemistry and Chemical Biology, Indian Institute of Technology (Indian School of Mines), Dhanbad, 826004, India
| | - Sumanta Kumar Padhi
- Artificial Photosynthesis Laboratory, Department of Chemistry and Chemical Biology, Indian Institute of Technology (Indian School of Mines), Dhanbad, 826004, India.
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4
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Singh A, Kemper G, Weyhermüller T, Kaeffer N, Leitner W. Activated Mn-MACHO Complexes Form Stable CO 2 Adducts. Chemistry 2023:e202303438. [PMID: 38032321 DOI: 10.1002/chem.202303438] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Revised: 11/28/2023] [Accepted: 11/30/2023] [Indexed: 12/01/2023]
Abstract
Manganese(I) carbonyl complexes bearing a MACHO-type ligand (HN(CH2 CH2 PR2 )2 ) readily react in their amido form with CO2 to generate 4-membered {Mn-N-C-O} metallacycles. The stability of the adducts decreases with the steric demand of the R groups at phosphorous (R=isopropyl>adamantyl). The CO2 -adducts display generally a lower reactivity as compared to the parent amido complexes. These adducts can thus be interpretated as masked forms of the active amido catalysts and potentially play important roles as off-loop species or branching points in catalytic transformations of carbon dioxide.
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Affiliation(s)
- Ajeet Singh
- Max Planck Institute for Chemical Energy Conversion, Stiftstrasse 34-36, 45470, Mülheim an der Ruhr, Germany
| | - Gregor Kemper
- Max Planck Institute for Chemical Energy Conversion, Stiftstrasse 34-36, 45470, Mülheim an der Ruhr, Germany
| | - Thomas Weyhermüller
- Max Planck Institute for Chemical Energy Conversion, Stiftstrasse 34-36, 45470, Mülheim an der Ruhr, Germany
| | - Nicolas Kaeffer
- Max Planck Institute for Chemical Energy Conversion, Stiftstrasse 34-36, 45470, Mülheim an der Ruhr, Germany
| | - Walter Leitner
- Max Planck Institute for Chemical Energy Conversion, Stiftstrasse 34-36, 45470, Mülheim an der Ruhr, Germany
- Institut für Technische und Makromolekulare Chemie, RWTH Aachen University, Worringerweg 2, 52074, Aachen, Germany
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5
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Oliemuller LK, Moore CE, Thomas CM. Synthesis, Characterization, and Reactivity of a (PPP) Pincer-Ligated Manganese Carbonyl Complex: Polarity Reversal Imparted by the Electrophilic Nature of a Planar Mn-P(NR 2) 2 Fragment. Inorg Chem 2023; 62:13997-14009. [PMID: 37585359 DOI: 10.1021/acs.inorgchem.3c01988] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/18/2023]
Abstract
The bonding interactions of a synthesized pincer-ligated manganese dicarbonyl complex featuring an N-heterocyclic phosphenium (NHP+) central moiety are explored. The pincer ligand [PPP]Cl was coordinated to a manganese center using Mn(CO)5Br and 254 nm light to afford the chlorophosphine complex (PPClP)Mn(CO)2Br (2) as a mixture of halide exchange products and stereoisomers. The target dicarbonyl species (PPP)Mn(CO)2 (3) was prepared by treatment of 2 with 2 equiv of the reductant KC8. Computational investigations and analysis of structural parameters were used to elucidate multiple bonding interactions between the Mn center and the PNHP atom in 3. The generation of a product of formal H2 addition, (PPHP)Mn(CO)2H (4), was achieved through the dehydrogenation of NH3BH3, affording a 2:1 mixture of 4syn:4anti stereoisomers. The nucleophilic nature of the Mn center and the electrophilic nature of the PNHP moiety were demonstrated through hydride addition and protonation of 3 to produce K(THF)2[(PPHP)Mn(CO)2] (6) and (PPClP)Mn(CO)2H (5), respectively. The observed reactivity suggests that 3 is best described as a Mn-I/NHP+ complex, in contrast to pincer-ligated dicarbonyl manganese analogues typically assigned as MnI species.
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Affiliation(s)
- Leah K Oliemuller
- Department of Chemistry and Biochemistry, The Ohio State University, 100 West 18th Avenue, Columbus, Ohio 43210, United States
| | - Curtis E Moore
- Department of Chemistry and Biochemistry, The Ohio State University, 100 West 18th Avenue, Columbus, Ohio 43210, United States
| | - Christine M Thomas
- Department of Chemistry and Biochemistry, The Ohio State University, 100 West 18th Avenue, Columbus, Ohio 43210, United States
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6
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Livesay B, Schmidt JG, Williams RF, Billow BS, Tondreau AM. Reactivity of [(PNP)Mn(CO) 2] with Organophosphates. ACS ORGANIC & INORGANIC AU 2023; 3:199-208. [PMID: 37545657 PMCID: PMC10401673 DOI: 10.1021/acsorginorgau.3c00003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Revised: 04/20/2023] [Accepted: 04/24/2023] [Indexed: 08/08/2023]
Abstract
Organophosphorus nerve agents (OPAs) are a toxic class of synthetic compounds that cause adverse effects with many biological systems. Development of methods for environmental remediation and passivation has been ongoing for years. However, little progress has been made in therapeutic development for exposure victims. Given the postexposure behavior of OPA materials in enzymes such as acetylcholinesterase (AChE), development of electrophilic compounds as therapeutics may be more beneficial than the currently employed nucleophilic countermeasures. In this report, we present our studies with an electrophilic, 16-electron manganese complex (iPrPNP)Mn(CO)2 (1) and the nucleophilic hydroxide derivative (iPrPNHP)Mn(CO)2(OH) (2). The reactivity of 1 with phosphorus acids and the reactivity of 2 with the P-F bond of diisopropylfluorophosphate (DIPF) were studied. The role of water in both nucleophilic and electrophilic reactivity was investigated with the use of 17O-labeled water. Promising results arising from reactions of both 1 and 2 with organophosphorus substrates are reported.
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7
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Kushwaha S, Awasthi MK, Das A, Pathak B, Singh SK. Diruthenium Catalyst for Hydrogen Production from Aqueous Formic Acid. Inorg Chem 2023; 62:8080-8092. [PMID: 37196200 DOI: 10.1021/acs.inorgchem.2c04079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
Diruthenium complexes [{(η6-arene)RuCl}2(μ-κ2:κ2-benztetraimd)]2+ containing the bridging bis-imidazole methane-based ligand {1,4-bis(bis(2-ethyl-5-methyl-1H-imidazol-4-yl)methyl)benzene} (benztetraimd) are synthesized for catalytic formic acid dehydrogenation in water at 90 °C. Catalyst [{(η6-p-cymene)RuCl}2(μ-κ2:κ2-benztetraimd)]2+ [1-Cl2] exhibited a remarkably high turnover frequency (1993 h-1 per Ru atom) and long-term stability over 60 days for formic acid dehydrogenation, while the analogous (η6-benzene)diruthenium and mononuclear catalysts displayed low activity with poor long-term stability. Notably, catalyst [1-Cl2] also displayed an appreciably high turnover number of 93 200 for the bulk-scale reaction. In addition, the in-depth mass and nuclear magnetic resonance investigations under the catalytic and control experimental conditions revealed the active involvement of several crucial catalytic intermediate species, such as Ru-aqua species [{(η6-p-cymene)Ru(H2O)}2(μ-L)]2+ [1-(OH2)2], Ru-formato species [{(η6-p-cymene)Ru(HCOO)}2(μ-L)] [1-(HCOO)2], and Ru-hydrido species [{(η6-p-cymene)Ru(H)}2(μ-L)] [1-(H)2], in the catalytic formic acid dehydrogenation reaction.
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Affiliation(s)
- Sanjeev Kushwaha
- Catalysis Group, Department of Chemistry, Indian Institute of Technology Indore, Simrol, Indore 453552, Madhya Pradesh, India
| | - Mahendra Kumar Awasthi
- Catalysis Group, Department of Chemistry, Indian Institute of Technology Indore, Simrol, Indore 453552, Madhya Pradesh, India
| | - Amitabha Das
- Computational Materials Designing Group, Department of Chemistry, Indian Institute of Technology Indore, Simrol, Indore 453552, Madhya Pradesh, India
| | - Biswarup Pathak
- Computational Materials Designing Group, Department of Chemistry, Indian Institute of Technology Indore, Simrol, Indore 453552, Madhya Pradesh, India
| | - Sanjay Kumar Singh
- Catalysis Group, Department of Chemistry, Indian Institute of Technology Indore, Simrol, Indore 453552, Madhya Pradesh, India
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8
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Kuß DA, Hölscher M, Leitner W. Combined Computational and Experimental Investigation on the Mechanism of CO 2 Hydrogenation to Methanol with Mn-PNP-Pincer Catalysts. ACS Catal 2022. [DOI: 10.1021/acscatal.2c04806] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022]
Affiliation(s)
- David A. Kuß
- Institut für Technische und Makromolekulare Chemie, RWTH Aachen University, Worringer Weg 2, 52074 Aachen, Germany
- Max-Planck-Institut für chemische Energiekonversion, Stiftstraße 34-36, 45470 Mülheim a.d. Ruhr, Germany
| | - Markus Hölscher
- Institut für Technische und Makromolekulare Chemie, RWTH Aachen University, Worringer Weg 2, 52074 Aachen, Germany
| | - Walter Leitner
- Institut für Technische und Makromolekulare Chemie, RWTH Aachen University, Worringer Weg 2, 52074 Aachen, Germany
- Max-Planck-Institut für chemische Energiekonversion, Stiftstraße 34-36, 45470 Mülheim a.d. Ruhr, Germany
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9
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Maji B, Kumar A, Bhattacherya A, Bera JK, Choudhury J. Cyclic Amide-Anchored NHC-Based Cp*Ir Catalysts for Bidirectional Hydrogenation–Dehydrogenation with CO 2/HCO 2H Couple. Organometallics 2022. [DOI: 10.1021/acs.organomet.2c00423] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Babulal Maji
- Organometallics & Smart Materials Laboratory, Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal 462 066, India
| | - Abhishek Kumar
- Organometallics & Smart Materials Laboratory, Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal 462 066, India
| | - Arindom Bhattacherya
- Department of Chemistry and Centre for Environmental Science and Engineering, Indian Institute of Technology Kanpur, Kanpur 208 016, India
| | - Jitendra K. Bera
- Department of Chemistry and Centre for Environmental Science and Engineering, Indian Institute of Technology Kanpur, Kanpur 208 016, India
| | - Joyanta Choudhury
- Organometallics & Smart Materials Laboratory, Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal 462 066, India
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10
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Wei D, Shi X, Sponholz P, Junge H, Beller M. Manganese Promoted (Bi)carbonate Hydrogenation and Formate Dehydrogenation: Toward a Circular Carbon and Hydrogen Economy. ACS CENTRAL SCIENCE 2022; 8:1457-1463. [PMID: 36313168 PMCID: PMC9615124 DOI: 10.1021/acscentsci.2c00723] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Indexed: 06/16/2023]
Abstract
We report here a feasible hydrogen storage and release process by interconversion of readily available (bi)carbonate and formate salts in the presence of naturally occurring α-amino acids. These transformations are of interest for the concept of a circular carbon economy. The use of inorganic carbonate salts for hydrogen storage and release is also described for the first time. Hydrogenation of these substrates proceeds with high formate yields in the presence of specific manganese pincer catalysts and glutamic acid. Based on this, cyclic hydrogen storage and release processes with carbonate salts succeed with good H2 yields.
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Affiliation(s)
- Duo Wei
- Leibniz-Institut
für Katalyse e.V., Albert-Einstein-Str. 29a, 18059Rostock, Germany
| | - Xinzhe Shi
- Leibniz-Institut
für Katalyse e.V., Albert-Einstein-Str. 29a, 18059Rostock, Germany
| | - Peter Sponholz
- APEX
Energy Teterow GmbH, Hans-Adam-Allee 1, 18299Rostock-Laage, Germany
| | - Henrik Junge
- Leibniz-Institut
für Katalyse e.V., Albert-Einstein-Str. 29a, 18059Rostock, Germany
| | - Matthias Beller
- Leibniz-Institut
für Katalyse e.V., Albert-Einstein-Str. 29a, 18059Rostock, Germany
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11
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Hert CM, Curley JB, Kelley SP, Hazari N, Bernskoetter WH. Comparative CO 2 Hydrogenation Catalysis with MACHO-type Manganese Complexes. Organometallics 2022. [DOI: 10.1021/acs.organomet.2c00295] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Clayton M. Hert
- The Department of Chemistry, The University of Missouri, Columbia, Missouri 65211, United States
| | - Julia B. Curley
- The Department of Chemistry, Yale University, P.O. Box 208107, New Haven, Connecticut 06520, United States
| | - Steven P. Kelley
- The Department of Chemistry, The University of Missouri, Columbia, Missouri 65211, United States
| | - Nilay Hazari
- The Department of Chemistry, Yale University, P.O. Box 208107, New Haven, Connecticut 06520, United States
| | - Wesley H. Bernskoetter
- The Department of Chemistry, The University of Missouri, Columbia, Missouri 65211, United States
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12
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Nazemi A, Steeves AH, Kastner DW, Kulik HJ. Influence of the Greater Protein Environment on the Electrostatic Potential in Metalloenzyme Active Sites: The Case of Formate Dehydrogenase. J Phys Chem B 2022; 126:4069-4079. [PMID: 35609244 DOI: 10.1021/acs.jpcb.2c02260] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The Mo/W-containing metalloenzyme formate dehydrogenase (FDH) is an efficient and selective natural catalyst that reversibly converts CO2 to formate under ambient conditions. In this study, we investigate the impact of the greater protein environment on the electrostatic potential (ESP) of the active site. To model the enzyme environment, we used a combination of classical molecular dynamics and multiscale quantum-mechanical (QM)/molecular-mechanical (MM) simulations. We leverage charge shift analysis to systematically construct QM regions and analyze the electronic environment of the active site by evaluating the degree of charge transfer between the core active site and the protein environment. The contribution of the terminal chalcogen ligand to the ESP of the metal center is substantial and dependent on the chalcogen identity, with similar, less negative ESPs for Se and S terminal chalcogens in comparison to O regardless of whether the metal is Mo or W. The orientation of the side chains and conformations of the cofactor also affect the ESP, highlighting the importance of sampling dynamic fluctuations in the protein. Overall, our observations suggest that the terminal chalcogen ligand identity plays an important role in the enzymatic activity of FDH, suggesting opportunities for a rational bioinspired catalyst design.
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Affiliation(s)
- Azadeh Nazemi
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Adam H Steeves
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - David W Kastner
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States.,Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Heather J Kulik
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
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13
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Owen AE, Preiss A, McLuskie A, Gao C, Peters G, Bühl M, Kumar A. Manganese-Catalyzed Dehydrogenative Synthesis of Urea Derivatives and Polyureas. ACS Catal 2022. [DOI: 10.1021/acscatal.2c00850] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
| | - Annika Preiss
- School of Chemistry, University of St. Andrews, North Haugh, St. Andrews KY169ST, U.K
| | - Angus McLuskie
- School of Chemistry, University of St. Andrews, North Haugh, St. Andrews KY169ST, U.K
| | - Chang Gao
- School of Chemistry, University of St. Andrews, North Haugh, St. Andrews KY169ST, U.K
| | - Gavin Peters
- School of Chemistry, University of St. Andrews, North Haugh, St. Andrews KY169ST, U.K
| | - Michael Bühl
- School of Chemistry, University of St. Andrews, North Haugh, St. Andrews KY169ST, U.K
| | - Amit Kumar
- School of Chemistry, University of St. Andrews, North Haugh, St. Andrews KY169ST, U.K
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14
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Das K, Waiba S, Jana A, Maji B. Manganese-catalyzed hydrogenation, dehydrogenation, and hydroelementation reactions. Chem Soc Rev 2022; 51:4386-4464. [PMID: 35583150 DOI: 10.1039/d2cs00093h] [Citation(s) in RCA: 49] [Impact Index Per Article: 24.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The emerging field of organometallic catalysis has shifted towards research on Earth-abundant transition metals due to their ready availability, economic advantage, and novel properties. In this case, manganese, the third most abundant transition-metal in the Earth's crust, has emerged as one of the leading competitors. Accordingly, a large number of molecularly-defined Mn-complexes has been synthesized and employed for hydrogenation, dehydrogenation, and hydroelementation reactions. In this regard, catalyst design is based on three pillars, namely, metal-ligand bifunctionality, ligand hemilability, and redox activity. Indeed, the developed catalysts not only differ in the number of chelating atoms they possess but also their working principles, thereby leading to different turnover numbers for product molecules. Hence, the critical assessment of molecularly defined manganese catalysts in terms of chelating atoms, reaction conditions, mechanistic pathway, and product turnover number is significant. Herein, we analyze manganese complexes for their catalytic activity, versatility to allow multiple transformations and their routes to convert substrates to target molecules. This article will also be helpful to get significant insight into ligand design, thereby aiding catalysis design.
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Affiliation(s)
- Kuhali Das
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, 741246, India.
| | - Satyadeep Waiba
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, 741246, India.
| | - Akash Jana
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, 741246, India.
| | - Biplab Maji
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, 741246, India.
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15
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Poormohammadian SJ, Bahadoran F, Vakili-Nezhaad GR. Recent progress in homogeneous hydrogenation of carbon dioxide to methanol. REV CHEM ENG 2022. [DOI: 10.1515/revce-2021-0036] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Abstract
The requirement of running a new generation of fuel production is inevitable due to the limitation of oil production from reservoirs. On the other hand, enhancing the CO2 concentration in the atmosphere brings global warming phenomenon and leads to catastrophic disasters such as drought and flooding. Conversion of carbon dioxide to methanol can compensate for the liquid fuel requirement and mitigate CO2 emissions to the atmosphere. In this review, we surveyed the recent works on homogeneous hydrogenation of CO2 to CH3OH and investigated the experimental results in detail. We categorized the CO2 hydrogenation works based on the environment of the reaction, including neutral, acidic, and basic conditions, and discussed the effects of solvents’ properties on the experimental results. This review provides a perspective on the previous studies in this field, which can assist the researchers in selecting the proper catalyst and solvent for homogenous hydrogenation of carbon dioxide to methanol.
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Affiliation(s)
| | - Farzad Bahadoran
- Gas Research Division , Research Institute of Petroleum Industry , West Blvd. of Azadi Sport Complex , 1485733111 , Tehran , Iran
| | - G. Reza Vakili-Nezhaad
- Petroleum and Chemical Engineering Department , College of Engineering, Sultan Qaboos University , 123 Muscat , Oman
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16
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Abstract
Formic acid (FA) possesses a high volumetric concentration of H2 (53 g L−1). Moreover, it can be easily prepared, stored, and transported. Therefore, FA stands out as a potential liquid organic hydrogen carrier (LOHC), which allows storage and transportation of hydrogen in a safe way. The dehydrogenation to produce H2 and CO2 competes with its dehydration to give CO and H2O. For this reason, research on selective catalytic FA dehydrogenation has gained attention in recent years. Several examples of highly active homogenous catalysts based on precious metals effective for the selective dehydrogenation of FA have been reported. Among them are the binuclear iridium-bipyridine catalysts described by Fujita and Himeda et al. (TOF = 228,000 h−1) and the cationic species [IrClCp*(2,2′-bi-2-imidazoline)]Cl (TOF = 487,500 h−1). However, examples of catalytic systems effective for the solventless dehydrogenation of FA, which is of great interest since it allows to reduce the reaction volume and avoids the use of organic solvents that could damage the fuel cell, are scarce. In this context, the development of transition metal catalysts based on cheap and easily available nonprecious metals is a subject of great interest. This work contains a summary on the state of the art of catalytic dehydrogenation of FA in homogeneous phase, together with an account of the catalytic systems based on non-precious metals so far reported.
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17
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Patra S, Deka H, Singh SK. Bis-Imidazole Methane Ligated Ruthenium(II) Complexes: Synthesis, Characterization, and Catalytic Activity for Hydrogen Production from Formic Acid in Water. Inorg Chem 2021; 60:14275-14285. [PMID: 34461719 DOI: 10.1021/acs.inorgchem.1c01784] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A series of half sandwich arene-ruthenium complexes [(η6-arene)RuCl(κ2-L)]+ ([Ru]-1-[Ru]-10) containing bis-imidazole methane-based ligands {4,4'-(phenylmethylene)bis(2-ethyl-5-methyl-1H-imidazole)} (L1), {4,4'-((4-methoxyphenyl)methylene)bis(2-ethyl-5-methyl-1H-imidazole)} (L2), {4,4'-((2-methoxyphenyl)methylene)bis(2-ethyl-5-methyl-1H-imidazole)} (L3), {4,4'-((4-chlorophenyl)methylene)bis(2-ethyl-5-methyl-1H-imidazole)} (L4), and {4,4'-((2-chlorophenyl)methylene)bis(2-ethyl-5-methyl-1H-imidazole)} (L5) are synthesized. The synthesized and purified complexes ([Ru]-1-[Ru]-10) are further employed for hydrogen production from formic acid in aqueous medium. Among the investigated complexes, [(η6-p-cymene)RuCl(κ2-L2)]+ [Ru]-2, having Ru(II) coordinated 4-methoxy phenyl substituted bis-imidazole methane ligand (L2), outperformed over others, displaying a higher catalytic turnover of 8830 and high efficiency (TOF = 1545 h-1) with appreciably high long-term stability for formic acid dehydrogenation in water.
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Affiliation(s)
- Soumyadip Patra
- Catalysis Group, Department of Chemistry, Indian Institute of Technology Indore, Simrol, Indore 453552, Madhya Pradesh, India
| | - Hemanta Deka
- Catalysis Group, Department of Chemistry, Indian Institute of Technology Indore, Simrol, Indore 453552, Madhya Pradesh, India
| | - Sanjay K Singh
- Catalysis Group, Department of Chemistry, Indian Institute of Technology Indore, Simrol, Indore 453552, Madhya Pradesh, India
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18
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Johnee Britto N, Jaccob M. Deciphering the Mechanistic Details of Manganese-Catalyzed Formic Acid Dehydrogenation: Insights from DFT Calculations. Inorg Chem 2021; 60:11038-11047. [PMID: 34240859 DOI: 10.1021/acs.inorgchem.1c00757] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A comprehensive density functional theory investigation has been carried out to unravel the complete mechanistic landscape of aqueous-phase formic acid dehydrogenation (FAD) catalyzed by a pyridyl-imidazoline-based Mn(I) catalyst [Mn(PY-NHIM)(CO)3Br], which was recently reported by Beller and co-workers. The computed free energy profiles show that for the production of a Mn-formate intermediate [Mn(HCO2-)], a stepwise mechanism is both kinetically and thermodynamically favorable compared to the concerted mechanism. This stepwise mechanism involves the dissociation of a Br- ion from a Mn-bromide complex [Mn(Br)] to create a vacant site and coordination of water solvent to this vacant site, followed by the dissociative exchange of the aqua ligand with the formate ion to form Mn(HCO2-). Non-covalent interaction analysis revealed that the steric hindrance at the transition state is the cardinal reason for the preference to a stepwise mechanism. The β-hydride elimination process was estimated to be the rate-determining step with a barrier of 19.0 kcal/mol. This confirms the experimental observation. The generation of a dihydrogen-bound complex was found to occur through the protonation of Mn-hydride by a hydronium ion instead of formic acid. The mechanistic details and insights presented in this work would promote future catalytic designing and exploration of earth-abundant Mn-based catalytic systems for potential applications toward FAD.
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Affiliation(s)
- Neethinathan Johnee Britto
- Department of Chemistry & Computational Chemistry Laboratory, Loyola Institute of Frontier Energy (LIFE), Loyola College, University of Madras, Chennai 600 034, Tamil Nadu, India
| | - Madhavan Jaccob
- Department of Chemistry & Computational Chemistry Laboratory, Loyola Institute of Frontier Energy (LIFE), Loyola College, University of Madras, Chennai 600 034, Tamil Nadu, India
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19
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Schlenker K, Christensen EG, Zhanserkeev AA, McDonald GR, Yang EL, Lutz KT, Steele RP, VanderLinden RT, Saouma CT. Role of Ligand-Bound CO 2 in the Hydrogenation of CO 2 to Formate with a (PNP)Mn Catalyst. ACS Catal 2021. [DOI: 10.1021/acscatal.1c01709] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Kevin Schlenker
- Department of Chemistry, University of Utah, 315 S. 1400 E., Salt Lake City, Utah 84112, United States
| | - Elizabeth G. Christensen
- Department of Chemistry, University of Utah, 315 S. 1400 E., Salt Lake City, Utah 84112, United States
| | - Asylbek A. Zhanserkeev
- Department of Chemistry, University of Utah, 315 S. 1400 E., Salt Lake City, Utah 84112, United States
| | - Gabriel R. McDonald
- Department of Chemistry, University of Utah, 315 S. 1400 E., Salt Lake City, Utah 84112, United States
| | - Emily L. Yang
- Department of Chemistry, University of Utah, 315 S. 1400 E., Salt Lake City, Utah 84112, United States
| | - Kevin T. Lutz
- Department of Chemistry, University of Utah, 315 S. 1400 E., Salt Lake City, Utah 84112, United States
| | - Ryan P. Steele
- Department of Chemistry, University of Utah, 315 S. 1400 E., Salt Lake City, Utah 84112, United States
| | - Ryan T. VanderLinden
- Department of Chemistry, University of Utah, 315 S. 1400 E., Salt Lake City, Utah 84112, United States
| | - Caroline T. Saouma
- Department of Chemistry, University of Utah, 315 S. 1400 E., Salt Lake City, Utah 84112, United States
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20
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Kuß DA, Hölscher M, Leitner W. Hydrogenation of CO
2
to Methanol with Mn‐PNP‐Pincer Complexes in the Presence of Lewis Acids: the Formate Resting State Unleashed. ChemCatChem 2021. [DOI: 10.1002/cctc.202100649] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- David A. Kuß
- Max-Planck-Institut für chemische Energiekonversion Stiftstraße 34–36 45470 Mülheim a. d. Ruhr Germany
- Institut für Technische und Makromolekulare Chemie RWTH Aachen University Worringer Weg 2 52074 Aachen Germany
| | - Markus Hölscher
- Institut für Technische und Makromolekulare Chemie RWTH Aachen University Worringer Weg 2 52074 Aachen Germany
| | - Walter Leitner
- Max-Planck-Institut für chemische Energiekonversion Stiftstraße 34–36 45470 Mülheim a. d. Ruhr Germany
- Institut für Technische und Makromolekulare Chemie RWTH Aachen University Worringer Weg 2 52074 Aachen Germany
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21
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Cook AW, Emge TJ, Waldie KM. Insights into Formate Oxidation by a Series of Cobalt Piano-Stool Complexes Supported by Bis(phosphino)amine Ligands. Inorg Chem 2021; 60:7372-7380. [PMID: 33904730 DOI: 10.1021/acs.inorgchem.1c00563] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A series of (cyclopentadienyl)cobalt(III) half-sandwich complexes (1-4) supported by bidentate bis(phosphino)amine ligands was synthesized and characterized by NMR spectroscopy, X-ray crystallography, and cyclic voltammetry. The CoIII-hydride complex 4-H bearing the bis(cyclohexylphosphine) ligand derivative was successfully isolated via protonation of the neutral reduced CoI complex 5 with a weak acid. Experimental and computational methods were used to determine the thermodynamic hydride accepting ability of these CoIII centers and to evaluate their reactivity toward the oxidation of formate. We find that the hydride accepting ability of 1-4 ranges from 71 to 74 kcal/mol in acetonitrile, which should favor a highly exergonic reaction with formate through direct hydride transfer. Formate oxidation was demonstrated at elevated temperatures in the presence of stoichiometric quantities of 4, generating carbon dioxide and the CoIII-hydride complex 4-H in 72% yield.
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Affiliation(s)
- Andrew W Cook
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, New Brunswick, New Jersey 08903, United States
| | - Thomas J Emge
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, New Brunswick, New Jersey 08903, United States
| | - Kate M Waldie
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, New Brunswick, New Jersey 08903, United States
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22
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23
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Lentz N, Aloisi A, Thuéry P, Nicolas E, Cantat T. Additive-Free Formic Acid Dehydrogenation Catalyzed by a Cobalt Complex. Organometallics 2021. [DOI: 10.1021/acs.organomet.0c00777] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Nicolas Lentz
- Université Paris-Saclay, CEA, CNRS, NIMBE, 91191 Gif-sur-Yvette, France
| | - Alicia Aloisi
- Université Paris-Saclay, CEA, CNRS, NIMBE, 91191 Gif-sur-Yvette, France
| | - Pierre Thuéry
- Université Paris-Saclay, CEA, CNRS, NIMBE, 91191 Gif-sur-Yvette, France
| | - Emmanuel Nicolas
- Université Paris-Saclay, CEA, CNRS, NIMBE, 91191 Gif-sur-Yvette, France
| | - Thibault Cantat
- Université Paris-Saclay, CEA, CNRS, NIMBE, 91191 Gif-sur-Yvette, France
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24
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Bahuguna A, Sasson Y. Formate-Bicarbonate Cycle as a Vehicle for Hydrogen and Energy Storage. CHEMSUSCHEM 2021; 14:1258-1283. [PMID: 33231357 DOI: 10.1002/cssc.202002433] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Revised: 11/20/2020] [Indexed: 05/19/2023]
Abstract
In recent years, hydrogen has been considered a promising energy carrier for a sustainable energy economy in the future. An easy solution for the safer storage of hydrogen is challenging and efficient methods are still being explored in this direction. Despite having some progress in this area, no cost-effective and easily applicable solutions that fulfill the requirements of industry are yet to be claimed. Currently, the storage of hydrogen is largely limited to high-pressure compression and liquefaction or in the form of metal hydrides. Formic acid is a good source of hydrogen that also generates CO2 along with hydrogen on decomposition. Moreover, the hydrogenation of CO2 is thermodynamically unfavorable and requires high energy input. Alkali metal formates are alternative mild and noncorrosive sources of hydrogen. On decomposition, these metal formates release hydrogen and generate bicarbonates. The generated bicarbonates can be catalytically charged back to alkali formates under optimized hydrogen pressure. Hence, the formate-bicarbonate-based systems being carbon neutral at ambient condition has certain advantages over formic acid. The formate-bicarbonate cycle can be considered as a vehicle for hydrogen and energy storage. The whole process is carbon-neutral, reversible, and sustainable. This Review emphasizes the various catalytic systems employed for reversible formate-bicarbonate conversion. Moreover, a mechanistic investigation, the effect of temperature, pH, kinetics of reversible formate-bicarbonate conversion, and new insights in the field are also discussed in detail.
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Affiliation(s)
- Ashish Bahuguna
- Casali Center of Applied Chemistry, Institute of Chemistry, The Hebrew University of Jerusalem, Jerusalem, 9190401, Israel
| | - Yoel Sasson
- Casali Center of Applied Chemistry, Institute of Chemistry, The Hebrew University of Jerusalem, Jerusalem, 9190401, Israel
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25
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Seo CSG, Tsui BTH, Gradiski MV, Smith SAM, Morris RH. Enantioselective direct, base-free hydrogenation of ketones by a manganese amido complex of a homochiral, unsymmetrical P–N–P′ ligand. Catal Sci Technol 2021. [DOI: 10.1039/d1cy00446h] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Base-free direct hydrogenation of ketones using a Mn(PNP′)(CO)2 complex is more enantioselective than that of a related base-activated iron complex.
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26
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Haiduc I. Inverse coordination metal complexes with oxalate and sulfur, selenium and nitrogen analogues as coordination centers. Topology and systematization. J COORD CHEM 2020. [DOI: 10.1080/00958972.2020.1789120] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Ionel Haiduc
- Facultatea de Chimie, Universitatea Babeş-Bolyai, Cluj-Napoca, Romania
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27
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Léval A, Junge H, Beller M. Formic Acid Dehydrogenation by a Cyclometalated
κ
3
‐CNN Ruthenium Complex. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.202000068] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Alexander Léval
- Leibniz‐Institut für Katalyse e.V. Albert‐Einstein‐Straße 29a 18059 Rostock Germany
| | - Henrik 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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28
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Budweg S, Junge K, Beller M. Catalytic oxidations by dehydrogenation of alkanes, alcohols and amines with defined (non)-noble metal pincer complexes. Catal Sci Technol 2020. [DOI: 10.1039/d0cy00699h] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The present review highlights the latest developments in the field of transition metal-catalysed oxidations, in particular C–C–, C–O– and C–N-bond dehydrogenations.
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Affiliation(s)
- Svenja Budweg
- Leibniz-Institut für Katalyse e.V
- Rostock 18059
- Germany
| | - Kathrin Junge
- Leibniz-Institut für Katalyse e.V
- Rostock 18059
- Germany
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29
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Kadassery KJ, Crawley MR, MacMillan SN, Lacy DC. A hemilabile manganese(i)–phenol complex and its coordination induced O–H bond weakening. Dalton Trans 2020; 49:16217-16225. [DOI: 10.1039/d0dt00973c] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Synthesis and characterization of [(HPO)(PO)Mn(CO)2 (H1), a phenol bound first-row transition metal complex, is reported. Thermochemical analysis of H1 indicated the presence of coordination induced O–H bond weakening.
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Affiliation(s)
| | - Matthew R. Crawley
- Department of Chemistry
- University at Buffalo
- State University of New York
- Buffalo
- USA
| | | | - David C. Lacy
- Department of Chemistry
- University at Buffalo
- State University of New York
- Buffalo
- USA
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30
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Léval A, Junge H, Beller M. Manganese( i) κ 2- NN complex-catalyzed formic acid dehydrogenation. Catal Sci Technol 2020. [DOI: 10.1039/d0cy00769b] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
This work updates the first non-phosphine-based Mn complex able to perform the formic acid dehydrogenation (FA DH) in the presence of amines. Significant improvements were achieved regarding TON (>7500), gas evolution (>20 L), and lower CO content.
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31
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McLoughlin EA, Matson BD, Sarangi R, Waymouth RM. Electrocatalytic Alcohol Oxidation with Iron-Based Acceptorless Alcohol Dehydrogenation Catalyst. Inorg Chem 2019; 59:1453-1460. [DOI: 10.1021/acs.inorgchem.9b03230] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | - Benjamin D. Matson
- Department of Chemistry, Stanford University, Stanford, California 94305, United States
- Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, California 94025, United States
| | - Ritimukta Sarangi
- Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, California 94025, United States
| | - Robert M. Waymouth
- Department of Chemistry, Stanford University, Stanford, California 94305, United States
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32
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Adsorbed CdO, TiO, RuO2, and IrO2 to silicon nanotube and carbon nanocage for anode of metal-ion battery: a computational study. MONATSHEFTE FUR CHEMIE 2019. [DOI: 10.1007/s00706-019-02517-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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33
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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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34
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Synthesis and characterization of unsaturated Manganese(I) and Rhenium(I) dicarbonyl complexes supported by an anionic PNP pincer. J Organomet Chem 2019. [DOI: 10.1016/j.jorganchem.2019.06.020] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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35
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Potential of cobalt-doped nanocages (Co–B36N36 and Co–C72) for SO oxidation (SO + ½ O2 → SO2): computational investigation. MONATSHEFTE FUR CHEMIE 2019. [DOI: 10.1007/s00706-019-02492-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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36
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Manganese‐Mediated Formic Acid Dehydrogenation. Chemistry 2019; 25:10557-10560. [DOI: 10.1002/chem.201901177] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Revised: 05/03/2019] [Indexed: 02/05/2023]
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37
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Gawali S, Pandia BK, Pal S, Gunanathan C. Manganese(I)-Catalyzed Cross-Coupling of Ketones and Secondary Alcohols with Primary Alcohols. ACS OMEGA 2019; 4:10741-10754. [PMID: 31460172 PMCID: PMC6648503 DOI: 10.1021/acsomega.9b01246] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/01/2019] [Accepted: 06/06/2019] [Indexed: 05/09/2023]
Abstract
Catalytic cross-coupling of ketones and secondary alcohols with primary alcohols is reported. An abundant manganese-based pincer catalyst catalyzes the reactions. Low loading of catalyst (2 mol %) and catalytic use of a mild base (5-10 mol %) are sufficient for efficient cross-coupling. Various aryl and heteroaryl ketones are catalytically cross-coupled with primary alcohols to provide the selective α-alkylated products. Challenging α-ethylation of ketones is also attained using ethanol as an alkylating reagent. Further, direct use of secondary alcohols in the reaction results in in situ oxidation to provide the ketone intermediates, which undergo selective α-alkylation. The reaction proceeds via the borrowing hydrogen pathway. The catalyst oxidizes the primary alcohols to aldehydes, which undergo subsequent aldol condensation with ketones, promoted by catalytic amount of Cs2CO3, to provide the α,β-unsaturated ketone intermediates. The hydrogen liberated from oxidation of alcohols is used for hydrogenation of α,β-unsaturated ketone intermediates. Notably either water or water and dihydrogen are the only byproducts in these environmentally benign catalytic processes. Mechanistic studies allowed inferring all of the intermediates involved. Dearomatization-aromatization metal-ligand cooperation in the catalyst facilitates the facile O-H bond activation of both primary and secondary alcohols, and the resultant manganese alkoxide complexes produce corresponding carbonyl compounds, perhaps via β-hydride elimination. The manganese(I) hydride intermediate plays dual role as it hydrogenates α,β-unsaturated ketones and liberates molecular hydrogen to regenerate the catalytically active dearomatized intermediate. Metal-ligand cooperation allows all of the manganese intermediates to exist in same oxidation state (+1) and plays an important role in these catalytic cross-coupling reactions.
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38
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Narro AL, Arman HD, Tonzetich ZJ. Manganese Chemistry of Anionic Pyrrole-Based Pincer Ligands. Organometallics 2019. [DOI: 10.1021/acs.organomet.9b00058] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Ana L. Narro
- Department of Chemistry, University of Texas at San Antonio (UTSA), San Antonio, Texas 78249, United States
| | - Hadi D. Arman
- Department of Chemistry, University of Texas at San Antonio (UTSA), San Antonio, Texas 78249, United States
| | - Zachary J. Tonzetich
- Department of Chemistry, University of Texas at San Antonio (UTSA), San Antonio, Texas 78249, United States
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39
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Rawat KS, Mandal SC, Bhauriyal P, Garg P, Pathak B. Catalytic upgrading of ethanol to n-butanol using an aliphatic Mn–PNP complex: theoretical insights into reaction mechanisms and product selectivity. Catal Sci Technol 2019. [DOI: 10.1039/c9cy00501c] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Understanding the product selectivity, conversion, and rate-determining steps in the catalytic upgrading of ethanol to butanol.
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Affiliation(s)
- Kuber Singh Rawat
- Discipline of Chemistry
- Indian Institute of Technology Indore
- Indore 453552
- India
| | | | - Preeti Bhauriyal
- Discipline of Chemistry
- Indian Institute of Technology Indore
- Indore 453552
- India
| | - Priyanka Garg
- Discipline of Chemistry
- Indian Institute of Technology Indore
- Indore 453552
- India
| | - Biswarup Pathak
- Discipline of Chemistry
- Indian Institute of Technology Indore
- Indore 453552
- India
- Discipline of Metallurgy Engineering and Materials Science
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40
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Kadassery KJ, Lacy DC. Pentacarbonylmethylmanganese(i) as a synthon for Mn(i) pincer catalysts. Dalton Trans 2019; 48:4467-4470. [DOI: 10.1039/c9dt00529c] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
MeMn(CO)5 efficiently forms active Mn(i) pincer catalysts under base-free catalytically relevant conditions.
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Affiliation(s)
| | - David C. Lacy
- Department of Chemistry
- University at Buffalo
- State University of New York
- Buffalo
- USA
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Alig L, Fritz M, Schneider S. First-Row Transition Metal (De)Hydrogenation Catalysis Based On Functional Pincer Ligands. Chem Rev 2018; 119:2681-2751. [PMID: 30596420 DOI: 10.1021/acs.chemrev.8b00555] [Citation(s) in RCA: 493] [Impact Index Per Article: 82.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The use of 3d metals in de/hydrogenation catalysis has emerged as a competitive field with respect to "traditional" precious metal catalyzed transformations. The introduction of functional pincer ligands that can store protons and/or electrons as expressed by metal-ligand cooperativity and ligand redox-activity strongly stimulated this development as a conceptual starting point for rational catalyst design. This review aims at providing a comprehensive picture of the utilization of functional pincer ligands in first-row transition metal hydrogenation and dehydrogenation catalysis and related synthetic concepts relying on these such as the hydrogen borrowing methodology. Particular emphasis is put on the implementation and relevance of cooperating and redox-active pincer ligands within the mechanistic scenarios.
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Affiliation(s)
- Lukas Alig
- Universität Göttingen , Institut für Anorganische Chemie , Tammannstrasse 4 , D-37077 Göttingen , Germany
| | - Maximilian Fritz
- Universität Göttingen , Institut für Anorganische Chemie , Tammannstrasse 4 , D-37077 Göttingen , Germany
| | - Sven Schneider
- Universität Göttingen , Institut für Anorganische Chemie , Tammannstrasse 4 , D-37077 Göttingen , Germany
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42
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Anderson NH, Boncella JM, Tondreau AM. Investigation of Nitrile Hydration Chemistry by Two Transition Metal Hydroxide Complexes: Mn–OH and Ni–OH Nitrile Insertion Chemistry. Organometallics 2018. [DOI: 10.1021/acs.organomet.8b00687] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Nickolas H. Anderson
- Chemistry Division, Los Alamos National Laboratory, MS J514, Los Alamos, New Mexico 87545, United States
| | - James M. Boncella
- Chemistry Division, Los Alamos National Laboratory, MS J514, Los Alamos, New Mexico 87545, United States
| | - Aaron M. Tondreau
- Chemistry Division, Los Alamos National Laboratory, MS J514, Los Alamos, New Mexico 87545, United States
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43
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Wei Z, de Aguirre A, Junge K, Beller M, Jiao H. Benyzl Alcohol Dehydrogenative Coupling Catalyzed by Defined Mn and Re PNP Pincer Complexes - A Computational Mechanistic Study. Eur J Inorg Chem 2018. [DOI: 10.1002/ejic.201800674] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Zhihong Wei
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock; Albert-Einstein-Straße 29a 18059 Rostock Germany
| | - Adiran de Aguirre
- ICIQ; Institute of Chemical Research of Catalonia; the Barcelona Institute of Science and Technology 43007 Tarragona Spain
| | - Kathrin Junge
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock; Albert-Einstein-Straße 29a 18059 Rostock Germany
| | - Matthias Beller
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock; Albert-Einstein-Straße 29a 18059 Rostock Germany
| | - Haijun Jiao
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock; Albert-Einstein-Straße 29a 18059 Rostock Germany
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44
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Glatz M, Pecak J, Haager L, Stoeger B, Kirchner K. Synthesis and characterization of bis- and tris-carbonyl Mn(I) and Re(I) PNP pincer complexes. MONATSHEFTE FUR CHEMIE 2018; 150:111-119. [PMID: 30662093 PMCID: PMC6320747 DOI: 10.1007/s00706-018-2307-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/01/2018] [Accepted: 09/25/2018] [Indexed: 10/31/2022]
Abstract
ABSTRACT A series of neutral bis- and cationic tris-carbonyl complexes of the types cis-[M(κ3 P,N,P-PNP)(CO)2Y] and [M(κ3 P,N,P-PNP)(CO)3]+ was prepared by reacting [M(CO)5Y] (M = Mn, Re; Y = Cl or Br) with PNP pincer ligands derived from the 2,6-diaminopyridine, 2,6-dihydroxypyridine, and 2,6-lutidine scaffolds. With the most bulky ligand PNPNH-tBu, the cationic square-pyramidal 16e bis-carbonyl complex [Mn(PNPNH-tBu)(CO)2]+ was obtained. In contrast, in the case of rhenium, the 18e complex [Re(PNPNH-tBu)(CO)3]+ was formed. The dissociation of CO was studied by means of DFT calculation revealing in agreement with experimental findings that CO release from [M(κ3 P,N,P-PNP)(CO)3]+ is in general endergonic, while for [Mn(κ3 P,N,P-PNPNH-tBu)(CO)3]+, this process is thermodynamically favored. X-ray structures of representative complexes are provided. GRAPHICAL ABSTRACT
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Affiliation(s)
- Mathias Glatz
- Institute of Applied Synthetic Chemistry, Vienna University of Technology, Getreidemarkt 9/163-AC, 1060 Vienna, Austria
| | - Jan Pecak
- Institute of Applied Synthetic Chemistry, Vienna University of Technology, Getreidemarkt 9/163-AC, 1060 Vienna, Austria
| | - Lena Haager
- Institute of Applied Synthetic Chemistry, Vienna University of Technology, Getreidemarkt 9/163-AC, 1060 Vienna, Austria
| | - Berthold Stoeger
- X-ray Center, Vienna University of Technology, Getreidemarkt 9/163-OC, 1060 Vienna, Austria
| | - Karl Kirchner
- Institute of Applied Synthetic Chemistry, Vienna University of Technology, Getreidemarkt 9/163-AC, 1060 Vienna, Austria
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Affiliation(s)
- Arup Mukherjee
- Department of Chemistry, Indian Institute of Technology Bhilai, GEC Campus, Sejbahar, Raipur, Chhattisgarh 492015, India
| | - David Milstein
- Department of Organic Chemistry, Weizmann Institute of Science, Rehovot, 76100, Israel
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46
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Trincado M, Vogt M. CO2-based hydrogen storage – hydrogen liberation from methanol/water mixtures and from anhydrous methanol. PHYSICAL SCIENCES REVIEWS 2018. [DOI: 10.1515/psr-2017-0014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Abstract
New strategies for the reforming of methanol under mild conditions on the basis of heterogeneous and molecular catalysts have raised the hopes and expectations on this fuel. This contribution will focus on the progress achieved in the production of hydrogen from aqueous and anhydrous methanol with molecular and heterogeneous catalysts. The report entails thermal approaches, as well as light-triggered dehydrogenation reactions. A comparison of the efficiency and mechanistic aspects will be made and principles of catalytic pathways operating in biological systems will be also addressed.
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47
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Prichatz C, Trincado M, Tan L, Casas F, Kammer A, Junge H, Beller M, Grützmacher H. Highly Efficient Base-Free Dehydrogenation of Formic Acid at Low Temperature. CHEMSUSCHEM 2018; 11:3092-3095. [PMID: 30062851 DOI: 10.1002/cssc.201801072] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2018] [Revised: 07/17/2018] [Indexed: 06/08/2023]
Abstract
The ruthenium complex [RuH2 (PPh3 )4 ] is a competent catalyst for the selective dehydrogenation of formic acid (FA) at low temperature. It tolerates water and shows excellent performance (TOF up to 36 000 h-1 at 60 °C). Remarkably, no basic additives are necessary to obtain such high activity and the defined complex is stable for up to 120 days, making this system one of the most effective formic acid dehydrogenation catalysts known to date.
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Affiliation(s)
- Christoph Prichatz
- Leibniz-Institut für Katalyse e. V., an der Universität Rostock, Albert-Einstein-Straße 29a, 18059, Rostock, Germany
| | - Monica Trincado
- Department of Chemistry and Applied Biosciences, ETH Zurich, 8093, Zurich, Switzerland
| | - Lilin Tan
- Department of Chemistry and Applied Biosciences, ETH Zurich, 8093, Zurich, Switzerland
- Lehn Institute of Functional materials (LIFM), Sun Yat-Sen University, 510275, Guangzhou, China
| | - Fernando Casas
- Department of Chemistry and Applied Biosciences, ETH Zurich, 8093, Zurich, Switzerland
| | - Anja Kammer
- Leibniz-Institut für Katalyse e. V., an der Universität Rostock, Albert-Einstein-Straße 29a, 18059, Rostock, Germany
| | - Henrik Junge
- Leibniz-Institut für Katalyse e. V., an der Universität Rostock, Albert-Einstein-Straße 29a, 18059, Rostock, Germany
| | - Matthias Beller
- Leibniz-Institut für Katalyse e. V., an der Universität Rostock, Albert-Einstein-Straße 29a, 18059, Rostock, Germany
| | - Hansjörg Grützmacher
- Department of Chemistry and Applied Biosciences, ETH Zurich, 8093, Zurich, Switzerland
- Lehn Institute of Functional materials (LIFM), Sun Yat-Sen University, 510275, Guangzhou, China
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Barman MK, Jana A, Maji B. Phosphine-Free NNN-Manganese Complex Catalyzed α-Alkylation of Ketones with Primary Alcohols and Friedländer Quinoline Synthesis. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201800380] [Citation(s) in RCA: 98] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Milan K. Barman
- Department of Chemical Sciences; Indian Institute of Science Education and Research Kolkata, Mohanpur; 741246 Nadia India
| | - Akash Jana
- Department of Chemical Sciences; Indian Institute of Science Education and Research Kolkata, Mohanpur; 741246 Nadia India
| | - Biplab Maji
- Department of Chemical Sciences; Indian Institute of Science Education and Research Kolkata, Mohanpur; 741246 Nadia India
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49
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Barman MK, Waiba S, Maji B. Manganese-Catalyzed Direct Olefination of Methyl-Substituted Heteroarenes with Primary Alcohols. Angew Chem Int Ed Engl 2018; 57:9126-9130. [DOI: 10.1002/anie.201804729] [Citation(s) in RCA: 70] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Indexed: 12/31/2022]
Affiliation(s)
- Milan K. Barman
- Department of Chemical Sciences; Indian Institute of Science Education and Research Kolkata; Mohanpur 741246 India
| | - Satyadeep Waiba
- Department of Chemical Sciences; Indian Institute of Science Education and Research Kolkata; Mohanpur 741246 India
| | - Biplab Maji
- Department of Chemical Sciences; Indian Institute of Science Education and Research Kolkata; Mohanpur 741246 India
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50
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Barman MK, Waiba S, Maji B. Manganese-Catalyzed Direct Olefination of Methyl-Substituted Heteroarenes with Primary Alcohols. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201804729] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Milan K. Barman
- Department of Chemical Sciences; Indian Institute of Science Education and Research Kolkata; Mohanpur 741246 India
| | - Satyadeep Waiba
- Department of Chemical Sciences; Indian Institute of Science Education and Research Kolkata; Mohanpur 741246 India
| | - Biplab Maji
- Department of Chemical Sciences; Indian Institute of Science Education and Research Kolkata; Mohanpur 741246 India
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