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Ostermann N, Rotthowe N, Stückl AC, Siewert I. (Electro)chemical N 2 Splitting by a Molybdenum Complex with an Anionic PNP Pincer-Type Ligand. ACS ORGANIC & INORGANIC AU 2024; 4:329-337. [PMID: 38855335 PMCID: PMC11157508 DOI: 10.1021/acsorginorgau.3c00056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Revised: 02/12/2024] [Accepted: 02/14/2024] [Indexed: 06/11/2024]
Abstract
Molybdenum(III) complexes bearing pincer-type ligands are well-known catalysts for N2-to-NH3 reduction. We investigated herein the impact of an anionic PNP pincer-type ligand in a Mo(III) complex on the (electro)chemical N2 splitting ([LMoCl3]-, 1 -, LH = 2,6-bis((di-tert-butylphosphaneyl)methyl)-pyridin-4-one). The increased electron-donating properties of the anionic ligand should lead to a stronger degree of N2 activation. The catalyst is indeed active in N2-to-NH3 conversion utilizing the proton-coupled electron transfer reagent SmI2/ethylene glycol. The corresponding Mo(V) nitrido complex 2H exhibits similar catalytic activity as 1H and thus could represent a viable intermediate. The Mo(IV) nitrido complex 3 - is also accessible by electrochemical reduction of 1 - under a N2 atmosphere. IR- and UV/vis-SEC measurements suggest that N2 splitting occurs via formation of an "overreduced" but more stable [(L(N2)2Mo0)2μ-N2]2- dimer. In line with this, the yield in the nitrido complex increases with lower applied potentials.
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Affiliation(s)
- Nils Ostermann
- Georg-August-Universität
Göttingen, Institut für
Anorganische Chemie, Tammannstr.
4, Göttingen 37077, Germany
| | - Nils Rotthowe
- Georg-August-Universität
Göttingen, Institut für
Anorganische Chemie, Tammannstr.
4, Göttingen 37077, Germany
| | - A. Claudia Stückl
- Georg-August-Universität
Göttingen, Institut für
Anorganische Chemie, Tammannstr.
4, Göttingen 37077, Germany
| | - Inke Siewert
- Georg-August-Universität
Göttingen, Institut für
Anorganische Chemie, Tammannstr.
4, Göttingen 37077, Germany
- Georg-August-Universität
Göttingen, International Center
for Advanced Studies of Energy Conversion, Tammannstr. 6, Göttingen 37077, Germany
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2
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Tanabe Y, Nishibayashi Y. Recent advances in catalytic nitrogen fixation using transition metal–dinitrogen complexes under mild reaction conditions. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2022.214783] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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3
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Bedbur K, Stucke N, Liehrs L, Krahmer J, Tuczek F. Catalytic Ammonia Synthesis Mediated by Molybdenum Complexes with PN 3P Pincer Ligands: Influence of P/N Substituents and Molecular Mechanism. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27227843. [PMID: 36431964 PMCID: PMC9692791 DOI: 10.3390/molecules27227843] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Revised: 11/08/2022] [Accepted: 11/09/2022] [Indexed: 11/16/2022]
Abstract
Three molybdenum trihalogenido complexes supported by different PN3P pincer ligands were synthesized and investigated regarding their activity towards catalytic N2-to-NH3 conversion. The highest yields were obtained with the H-PN3PtBu ligand. The corresponding Mo(V)-nitrido complex also shows good catalytic activity. Experiments regarding the formation of the analogous Mo(IV)-nitrido complex lead to the conclusion that the mechanism of catalytic ammonia formation mediated by the title systems does not involve N-N cleavage of a dinuclear Mo-dinitrogen complex, but follows the classic Chatt cycle.
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4
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Gradiski MV, Rennie BE, Lough AJ, Morris RH. Electronic insights into aminoquinoline-based PN HN ligands: protonation state dictates geometry while coordination environment dictates N-H acidity and bond strength. Dalton Trans 2022; 51:11241-11254. [PMID: 35731231 DOI: 10.1039/d2dt01556k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A variety of transition metal complexes bearing aminoquinoline PNHH'-R ligands R = Ph (L1H), Cy (L2H) and their amido analogues are reported for rhodium(I) ([Rh(L1H)(PPh3)]+1 and Rh(L1)(PPh3) 2), cobalt(II) (Co(L2)(Cl) 3), and iron(II) ([Fe(L1H)2]2+5, Fe(L1)26, and [Fe(C5Me5)(L1H)]PF67). The acid-base and redox properties of the amido complexes 2, 6, and their protio parent complexes 1, and 5 permit the determination of the pKa and bond dissociation free energy (BDFE) of their N-H bonds while the ligand scaffold is coordinated to metal centres of square planar and octahedral geometry, respectively. From relative concentrations obtained by the use of 31P{1H} NMR spectroscopy, a pKaTHF value of 14 is calculated for rhodium complex 1, 6.4 for iron complex 5, and 24 for iron complex 7. These data, when combined with elecrochemical potentials obtained via cyclic voltammetry, allow the calculations of BDFE values for the N-H bond of 69 kcal mol-1 for 1, and of 55 kcal mol-1 for 5.
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Affiliation(s)
- Matthew V Gradiski
- Department of Chemistry, University of Toronto, 80 Saint George Street, Toronto, Ontario, M5S 3H6, Canada.
| | - Benjamin E Rennie
- Department of Chemistry, University of Toronto, 80 Saint George Street, Toronto, Ontario, M5S 3H6, Canada.
| | - Alan J Lough
- Department of Chemistry, University of Toronto, 80 Saint George Street, Toronto, Ontario, M5S 3H6, Canada.
| | - Robert H Morris
- Department of Chemistry, University of Toronto, 80 Saint George Street, Toronto, Ontario, M5S 3H6, Canada.
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5
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Bae DY, Lee G, Lee E. Reduction of highly bulky triphenolamine molybdenum nitrido and chloride complexes. Dalton Trans 2021; 50:14139-14143. [PMID: 34635894 DOI: 10.1039/d1dt02375f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Transition metal nitrides are key intermediates in the catalytic reduction of dinitrogen to ammonia. To date, transition metal nitride complexes with the triphenolamine (TPA) ligand have not been reported and the system with the ligand has been much less studied for ammonia formation compared with other systems. Herein, we report a series of molybdenum complexes supported by a sterically demanding TPA ligand, including a nitrido complex NMo(TPA). We achieved the stoichiometric conversion of the nitride moiety into ammonia under ambient conditions by adding proton and electron sources to NMo(TPA). However, the catalytic turnover for N2 reduction to ammonia was not observed in the triphenolamine ligand system unlike the Schrock system-triamidoamine ligand. Density functional theory calculation revealed that the molybdenum center favors binding NH3 over N2 by 16.9 kcal mol-1 and the structural lability of the trigonal bipyramidal (TBP) molybdenum complex seems to prevent catalytic turnover. Our systematic study showed that the electronegativity and bond length of ancillary ligands determine the preference between N2 and NH3, suggesting a systematic design strategy for improvement.
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Affiliation(s)
- Dae Young Bae
- Department of Chemistry, Pohang University of Science and Technology, 77 Cheongam-Ro, 37673, Pohang, Republic of Korea.
| | - Gunhee Lee
- Department of Chemistry, Pohang University of Science and Technology, 77 Cheongam-Ro, 37673, Pohang, Republic of Korea.
| | - Eunsung Lee
- Department of Chemistry, Pohang University of Science and Technology, 77 Cheongam-Ro, 37673, Pohang, Republic of Korea.
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6
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Tanabe Y, Nishibayashi Y. Comprehensive insights into synthetic nitrogen fixation assisted by molecular catalysts under ambient or mild conditions. Chem Soc Rev 2021; 50:5201-5242. [PMID: 33651046 DOI: 10.1039/d0cs01341b] [Citation(s) in RCA: 64] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
N2 is fixed as NH3 industrially by the Haber-Bosch process under harsh conditions, whereas biological nitrogen fixation is achieved under ambient conditions, which has prompted development of alternative methods to fix N2 catalyzed by transition metal molecular complexes. Since the early 21st century, catalytic conversion of N2 into NH3 under ambient conditions has been achieved by using molecular catalysts, and now H2O has been utilized as a proton source with turnover frequencies reaching the values found for biological nitrogen fixation. In this review, recent advances in the development of molecular catalysts for synthetic N2 fixation under ambient or mild conditions are summarized, and potential directions for future research are also discussed.
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Affiliation(s)
- Yoshiaki Tanabe
- Department of Applied Chemistry, School of Engineering, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-8656, Japan.
| | - Yoshiaki Nishibayashi
- Department of Applied Chemistry, School of Engineering, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-8656, Japan.
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7
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Abstract
Our planet urgently needs sustainable solutions to alleviate the anthropogenic global warming and climate change. Homogeneous catalysis has the potential to play a fundamental role in this process, providing novel, efficient, and at the same time eco-friendly routes for both chemicals and energy production. In particular, pincer-type ligation shows promising properties in terms of long-term stability and selectivity, as well as allowing for mild reaction conditions and low catalyst loading. Indeed, pincer complexes have been applied to a plethora of sustainable chemical processes, such as hydrogen release, CO2 capture and conversion, N2 fixation, and biomass valorization for the synthesis of high-value chemicals and fuels. In this work, we show the main advances of the last five years in the use of pincer transition metal complexes in key catalytic processes aiming for a more sustainable chemical and energy production.
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8
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Merz LS, Ballmann J, Gade LH. Phosphines and
N
‐Heterocycles Joining Forces: an Emerging Structural Motif in PNP‐Pincer Chemistry. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.202000206] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Lukas S. Merz
- Anorganisch‐Chemisches Institut Universität Heidelberg Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - Joachim Ballmann
- Anorganisch‐Chemisches Institut Universität Heidelberg Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - Lutz H. Gade
- Anorganisch‐Chemisches Institut Universität Heidelberg Im Neuenheimer Feld 270 69120 Heidelberg Germany
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9
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Chalkley MJ, Drover MW, Peters JC. Catalytic N 2-to-NH 3 (or -N 2H 4) Conversion by Well-Defined Molecular Coordination Complexes. Chem Rev 2020; 120:5582-5636. [PMID: 32352271 DOI: 10.1021/acs.chemrev.9b00638] [Citation(s) in RCA: 187] [Impact Index Per Article: 46.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Nitrogen fixation, the six-electron/six-proton reduction of N2, to give NH3, is one of the most challenging and important chemical transformations. Notwithstanding the barriers associated with this reaction, significant progress has been made in developing molecular complexes that reduce N2 into its bioavailable form, NH3. This progress is driven by the dual aims of better understanding biological nitrogenases and improving upon industrial nitrogen fixation. In this review, we highlight both mechanistic understanding of nitrogen fixation that has been developed, as well as advances in yields, efficiencies, and rates that make molecular alternatives to nitrogen fixation increasingly appealing. We begin with a historical discussion of N2 functionalization chemistry that traverses a timeline of events leading up to the discovery of the first bona fide molecular catalyst system and follow with a comprehensive overview of d-block compounds that have been targeted as catalysts up to and including 2019. We end with a summary of lessons learned from this significant research effort and last offer a discussion of key remaining challenges in the field.
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Affiliation(s)
- Matthew J Chalkley
- Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
| | - Marcus W Drover
- Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
| | - Jonas C Peters
- Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
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11
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Hickey AK, Wickramasinghe LA, Schrock RR, Tsay C, Müller P. Protonation Studies of Molybdenum(VI) Nitride Complexes That Contain the [2,6-(ArNCH 2) 2NC 5H 3] 2- Ligand (Ar = 2,6-Diisopropylphenyl). Inorg Chem 2019; 58:3724-3731. [PMID: 30807124 DOI: 10.1021/acs.inorgchem.8b03346] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
[Ar2N3]Mo(N)(O- t-Bu) (1), which contains the conformationally rigid pyridine-based diamido ligand [2,6-(ArNCH2)2NC5H3]2- (Ar = 2,6-diisopropylphenyl), is a catalyst for the reduction of dinitrogen with protons and electrons. Various acids have been added in order to explore where and how the first proton adds to the complex. The addition of adamantol to 1 produces a five-coordinate bis(adamantoxide), [HAr2N3]Mo(N)(OAd)2 (2a), in which one of the amido nitrogens in the ligand has been protonated and the resulting aniline nitrogen in the [HAr2N3]- ligand is not bound to the metal. The addition of [Ph2NH2][OTf] to 1 produces {[HAr2N3]Mo(N)(O- t-Bu)}(OTf) (3), in which an amido nitrogen has been protonated, but the aniline in the [HAr2N3]- ligand remains bound to the metal. Last, the addition of (2,6-lutidinium)BArF4 (BArF4 = {B(3,5-(CF3)2C6H3)4}-) to 1 yields {[Ar2N3]Mo(N)(LutH)(O- t-Bu)}BArF4, in which LutH+ is hydrogen-bonded to the nitride in the solid state and in dichloromethane with Keq = 412 ± 94 and Δ G = -3.6 ± 0.8 kcal at 22 °C. A similar hydrogen-bonded adduct was formed through the addition of (2-methylpyridinium)BArF4 to 1, but the addition of (pyridinium)BArF4 to 1 leads to the formation of (inter alia) {[HAr2N3]Mo(N)(O- t-Bu)}(BArF4), in which the amide nitrogen has been protonated. The addition of cobaltocene to 3 or {[Ar2N3]Mo(N)(LutH)(O- t-Bu)}(BArF4) leads only to the re-formation of 1. X-ray structural studies were carried out on 2a, 3, and {[Ar2N3]Mo(N)(LutH)(O- t-Bu)}(BArF4).
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Affiliation(s)
- Anne K Hickey
- Department of Chemistry , Massachusetts Institute of Technology , 77 Massachusetts Avenue , Cambridge , Massachusetts 02139 , United States
| | - Lasantha A Wickramasinghe
- Department of Chemistry , Massachusetts Institute of Technology , 77 Massachusetts Avenue , Cambridge , Massachusetts 02139 , United States
| | - Richard R Schrock
- Department of Chemistry , Massachusetts Institute of Technology , 77 Massachusetts Avenue , Cambridge , Massachusetts 02139 , United States
| | - Charlene Tsay
- Department of Chemistry , Massachusetts Institute of Technology , 77 Massachusetts Avenue , Cambridge , Massachusetts 02139 , United States
| | - Peter Müller
- Department of Chemistry , Massachusetts Institute of Technology , 77 Massachusetts Avenue , Cambridge , Massachusetts 02139 , United States
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12
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13
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Gradiski MV, Tsui BTH, Lough AJ, Morris RH. PNN′ & P2NN′ ligands via reductive amination with phosphine aldehydes: synthesis and base-metal coordination chemistry. Dalton Trans 2019; 48:2150-2159. [DOI: 10.1039/c8dt04058c] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Phosphorus-donor “arms” are readily added to amines in order to enable sturdy base metal coordination.
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Affiliation(s)
| | | | - Alan J. Lough
- Department of Chemistry
- University of Toronto
- Toronto
- Canada
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14
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Wickramasinghe LA, Schrock RR, Tsay C, Müller P. Molybdenum Complexes that Contain a Calix[6]azacryptand Ligand as Catalysts for Reduction of N 2 to Ammonia. Inorg Chem 2018; 57:15566-15574. [PMID: 30516366 DOI: 10.1021/acs.inorgchem.8b02903] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
[CAC(OMe)6]Mo(N) (3, where [CAC]3- is a calix[6]azacryptand ligand derived from a [6]calixarene) has been prepared in a reaction between Li3[CAC(OMe)6] and ( t-BuO)3Mo(N). An X-ray structural study showed 3 to have a structure similar to that of [HIPTN3N]Mo(N) (where [HIPTN3N]3- is [(3,5-(2,4,6-triisopropylphenyl)2C6H3NCH2CH2)3N]3-). The relatively rigid [CAC(OMe)6]3- ligand in 3 forms a bowl-shaped cavity defined by a 24-atom macrocyclic ring. The Mo-Namido-Cipso angles are ∼8° smaller in 3 than they are in [HIPTN3N]Mo(N). Methoxides on the three linking units point into the cavity above the nitride in 3, whereas the three methoxides on phenyl rings attached to the amido nitrogen atoms point away from the cavity. An analogous [CAC(OMe)3(H)3]Mo(N) complex (9) was prepared in which the three methoxides pointing into the cavity in 3 have been replaced by protons. Its structure differs little from that of 3. The nitride could be protonated in 3 to give {[CAC(OMe)6]Mo(NH)}+, which could be reduced (reversibly) to [CAC(OMe)6]Mo(NH). Catalytic reduction of molecular nitrogen under a variety of conditions with either Ph2NH2OTf or HBArf (BArf- = {B[3,5(CF3)2C5H3]4}-) as the acid and a Co metallocene or KC8 as the reducing agent between -78 and 22 °C in diethyl ether shows that 1.20-1.34 equivalents of ammonia are formed starting with either [CAC(OMe)6]Mo(N) (50% 15N) or [CAC(OMe)3(H)3]Mo(N) (50% 15N).
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Affiliation(s)
- Lasantha A Wickramasinghe
- Department of Chemistry 6-331 , Massachusetts Institute of Technology , Cambridge , Massachusetts 02139 , United States
| | - Richard R Schrock
- Department of Chemistry 6-331 , Massachusetts Institute of Technology , Cambridge , Massachusetts 02139 , United States
| | - Charlene Tsay
- Department of Chemistry 6-331 , Massachusetts Institute of Technology , Cambridge , Massachusetts 02139 , United States
| | - Peter Müller
- Department of Chemistry 6-331 , Massachusetts Institute of Technology , Cambridge , Massachusetts 02139 , United States
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15
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Espada MF, Bennaamane S, Liao Q, Saffon-Merceron N, Massou S, Clot E, Nebra N, Fustier-Boutignon M, Mézailles N. Room-Temperature Functionalization of N2
to Borylamine at a Molybdenum Complex. Angew Chem Int Ed Engl 2018; 57:12865-12868. [DOI: 10.1002/anie.201805915] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2018] [Indexed: 11/10/2022]
Affiliation(s)
- Maria F. Espada
- Laboratoire Hétérochimie Fondamentale et Appliquée; Université Paul Sabatier; CNRS; 118 Route de Narbonne 31062 Toulouse France
| | - Soukaina Bennaamane
- Laboratoire Hétérochimie Fondamentale et Appliquée; Université Paul Sabatier; CNRS; 118 Route de Narbonne 31062 Toulouse France
| | - Qian Liao
- Laboratoire Hétérochimie Fondamentale et Appliquée; Université Paul Sabatier; CNRS; 118 Route de Narbonne 31062 Toulouse France
| | - Nathalie Saffon-Merceron
- Institut de Chimie de Toulouse ICT-FR2599; Université Paul Sabatier; CNRS; 31062 Toulouse Cedex France
| | - Stéphane Massou
- Institut de Chimie de Toulouse ICT-FR2599; Université Paul Sabatier; CNRS; 31062 Toulouse Cedex France
| | - Eric Clot
- Institut Charles Gerhardt Montpellier, UMR 5253 CNRS-UM-ENSCM; Université de Montpellier; Place E. Bataillon, cc 1501 34095 Montpellier cedex 5 France
| | - Noel Nebra
- Laboratoire Hétérochimie Fondamentale et Appliquée; Université Paul Sabatier; CNRS; 118 Route de Narbonne 31062 Toulouse France
| | - Marie Fustier-Boutignon
- Laboratoire Hétérochimie Fondamentale et Appliquée; Université Paul Sabatier; CNRS; 118 Route de Narbonne 31062 Toulouse France
| | - Nicolas Mézailles
- Laboratoire Hétérochimie Fondamentale et Appliquée; Université Paul Sabatier; CNRS; 118 Route de Narbonne 31062 Toulouse France
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16
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Espada MF, Bennaamane S, Liao Q, Saffon-Merceron N, Massou S, Clot E, Nebra N, Fustier-Boutignon M, Mézailles N. Room-Temperature Functionalization of N2
to Borylamine at a Molybdenum Complex. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201805915] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Maria F. Espada
- Laboratoire Hétérochimie Fondamentale et Appliquée; Université Paul Sabatier; CNRS; 118 Route de Narbonne 31062 Toulouse France
| | - Soukaina Bennaamane
- Laboratoire Hétérochimie Fondamentale et Appliquée; Université Paul Sabatier; CNRS; 118 Route de Narbonne 31062 Toulouse France
| | - Qian Liao
- Laboratoire Hétérochimie Fondamentale et Appliquée; Université Paul Sabatier; CNRS; 118 Route de Narbonne 31062 Toulouse France
| | - Nathalie Saffon-Merceron
- Institut de Chimie de Toulouse ICT-FR2599; Université Paul Sabatier; CNRS; 31062 Toulouse Cedex France
| | - Stéphane Massou
- Institut de Chimie de Toulouse ICT-FR2599; Université Paul Sabatier; CNRS; 31062 Toulouse Cedex France
| | - Eric Clot
- Institut Charles Gerhardt Montpellier, UMR 5253 CNRS-UM-ENSCM; Université de Montpellier; Place E. Bataillon, cc 1501 34095 Montpellier cedex 5 France
| | - Noel Nebra
- Laboratoire Hétérochimie Fondamentale et Appliquée; Université Paul Sabatier; CNRS; 118 Route de Narbonne 31062 Toulouse France
| | - Marie Fustier-Boutignon
- Laboratoire Hétérochimie Fondamentale et Appliquée; Université Paul Sabatier; CNRS; 118 Route de Narbonne 31062 Toulouse France
| | - Nicolas Mézailles
- Laboratoire Hétérochimie Fondamentale et Appliquée; Université Paul Sabatier; CNRS; 118 Route de Narbonne 31062 Toulouse France
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17
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Zhao J, Chen Z. Single Mo Atom Supported on Defective Boron Nitride Monolayer as an Efficient Electrocatalyst for Nitrogen Fixation: A Computational Study. J Am Chem Soc 2017; 139:12480-12487. [DOI: 10.1021/jacs.7b05213] [Citation(s) in RCA: 780] [Impact Index Per Article: 111.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Jingxiang Zhao
- Key
Laboratory of Photonic and Electronic Bandgap Materials, Ministry
of Education, and College of Chemistry and Chemical Engineering, Harbin Normal University, Harbin, 150025, China
| | - Zhongfang Chen
- Department
of Chemistry, University of Puerto Rico, Rio Piedras Campus, San Juan, PR 00931, United States
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18
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Imayoshi R, Nakajima K, Takaya J, Iwasawa N, Nishibayashi Y. Synthesis and Reactivity of Iron- and Cobalt-Dinitrogen Complexes Bearing PSiP-Type Pincer Ligands toward Nitrogen Fixation. Eur J Inorg Chem 2017. [DOI: 10.1002/ejic.201700569] [Citation(s) in RCA: 58] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Ryuji Imayoshi
- Department of Systems Innovation; School of Engineering; The University of Tokyo; Hongo, Bunkyo-ku 113-8656 Tokyo Japan
| | - Kazunari Nakajima
- Department of Systems Innovation; School of Engineering; The University of Tokyo; Hongo, Bunkyo-ku 113-8656 Tokyo Japan
| | - Jun Takaya
- Department of Chemistry; Tokyo Institute of Technology; O-okayama, Meguro-ku 152-8551 Tokyo Japan
| | - Nobuharu Iwasawa
- Department of Chemistry; Tokyo Institute of Technology; O-okayama, Meguro-ku 152-8551 Tokyo Japan
| | - Yoshiaki Nishibayashi
- Department of Systems Innovation; School of Engineering; The University of Tokyo; Hongo, Bunkyo-ku 113-8656 Tokyo Japan
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Wickramasinghe LA, Ogawa T, Schrock RR, Müller P. Reduction of Dinitrogen to Ammonia Catalyzed by Molybdenum Diamido Complexes. J Am Chem Soc 2017. [DOI: 10.1021/jacs.7b04800] [Citation(s) in RCA: 110] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Lasantha A. Wickramasinghe
- Department of Chemistry 6-331, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Takaya Ogawa
- Department of Chemistry 6-331, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Richard R. Schrock
- Department of Chemistry 6-331, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Peter Müller
- Department of Chemistry 6-331, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
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20
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Imayoshi R, Nakajima K, Nishibayashi Y. Vanadium-catalyzed Reduction of Molecular Dinitrogen into Silylamine under Ambient Reaction Conditions. CHEM LETT 2017. [DOI: 10.1246/cl.161165] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Ryuji Imayoshi
- Department of Systems Innovation, School of Engineering, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-8656
| | - Kazunari Nakajima
- Department of Systems Innovation, School of Engineering, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-8656
| | - Yoshiaki Nishibayashi
- Department of Systems Innovation, School of Engineering, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-8656
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21
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Liang M, Zou DH. A dioxidomolybdenum(VI) complex of tridentate ONO aroylhydrazone ligand: Synthesis, crystal structure and catalytic activity. INORG NANO-MET CHEM 2017. [DOI: 10.1080/15533174.2016.1149730] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Min Liang
- School of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar, P. R. China
| | - Dong-Hui Zou
- College of Food and Bio-Engineering, Qiqihar University, Qiqihar, P. R. China
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22
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Liao Q, Cavaillé A, Saffon-Merceron N, Mézailles N. Direct Synthesis of Silylamine from N2and a Silane: Mediated by a Tridentate Phosphine Molybdenum Fragment. Angew Chem Int Ed Engl 2016; 55:11212-6. [DOI: 10.1002/anie.201604812] [Citation(s) in RCA: 75] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2016] [Revised: 06/24/2016] [Indexed: 11/10/2022]
Affiliation(s)
- Qian Liao
- Laboratoire Hétérochimie Fondamentale et Appliquée; Université Paul Sabatier, CNRS; 118 Route de Narbonne 31062 Toulouse France
| | - Anthony Cavaillé
- Laboratoire Hétérochimie Fondamentale et Appliquée; Université Paul Sabatier, CNRS; 118 Route de Narbonne 31062 Toulouse France
| | - Nathalie Saffon-Merceron
- Institut de Chimie de Toulouse ICT-FR2599; Université Paul Sabatier; 31062 Toulouse Cedex France
| | - Nicolas Mézailles
- Laboratoire Hétérochimie Fondamentale et Appliquée; Université Paul Sabatier, CNRS; 118 Route de Narbonne 31062 Toulouse France
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23
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Liao Q, Cavaillé A, Saffon-Merceron N, Mézailles N. Direct Synthesis of Silylamine from N2and a Silane: Mediated by a Tridentate Phosphine Molybdenum Fragment. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201604812] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Qian Liao
- Laboratoire Hétérochimie Fondamentale et Appliquée; Université Paul Sabatier, CNRS; 118 Route de Narbonne 31062 Toulouse France
| | - Anthony Cavaillé
- Laboratoire Hétérochimie Fondamentale et Appliquée; Université Paul Sabatier, CNRS; 118 Route de Narbonne 31062 Toulouse France
| | - Nathalie Saffon-Merceron
- Institut de Chimie de Toulouse ICT-FR2599; Université Paul Sabatier; 31062 Toulouse Cedex France
| | - Nicolas Mézailles
- Laboratoire Hétérochimie Fondamentale et Appliquée; Université Paul Sabatier, CNRS; 118 Route de Narbonne 31062 Toulouse France
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24
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Tanabe Y, Nishibayashi Y. Catalytic Dinitrogen Fixation to Form Ammonia at Ambient Reaction Conditions Using Transition Metal-Dinitrogen Complexes. CHEM REC 2016; 16:1549-77. [DOI: 10.1002/tcr.201600025] [Citation(s) in RCA: 77] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2016] [Indexed: 01/23/2023]
Affiliation(s)
- Yoshiaki Tanabe
- Department of Systems Innovation, School of Engineering; The University of Tokyo; Hongo, Bunkyo-ku Tokyo 113-8656 Japan
| | - Yoshiaki Nishibayashi
- Department of Systems Innovation, School of Engineering; The University of Tokyo; Hongo, Bunkyo-ku Tokyo 113-8656 Japan
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25
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Liao Q, Saffon-Merceron N, Mézailles N. N2 Reduction into Silylamine at Tridentate Phosphine/Mo Center: Catalysis and Mechanistic Study. ACS Catal 2015. [DOI: 10.1021/acscatal.5b01626] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Qian Liao
- Laboratoire
Hétérochimie Fondamentale et Appliquée, CNRS, Université Paul Sabatier, 31062 CEDEX Toulouse, France
| | - Nathalie Saffon-Merceron
- Institut
de Chimie de Toulouse ICT-FR2599, Université Paul Sabatier, 31062 CEDEX Toulouse, France
| | - Nicolas Mézailles
- Laboratoire
Hétérochimie Fondamentale et Appliquée, CNRS, Université Paul Sabatier, 31062 CEDEX Toulouse, France
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26
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Asay M, Morales-Morales D. Non-symmetric pincer ligands: complexes and applications in catalysis. Dalton Trans 2015; 44:17432-47. [PMID: 26396037 DOI: 10.1039/c5dt02295a] [Citation(s) in RCA: 219] [Impact Index Per Article: 24.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Pincer ligands have become ubiquitous in organometallic chemistry and homogeneous catalysis. Recently, new varieties of pincer ligands with non-symmetrical backbones and/or ligating groups have been reported and their application in transition metal complexes has been exploited in a variety of catalytic transformations. This non-symmetric approach vastly increases the structural and electronic diversity of this class of ligand. This approach has proven beneficial in a variety of ways, such as the use of a single weakly coordinating moiety, which can dissociate and thereby create a vacant coordination site to increase the catalyst activity. Additionally, this provides further access to chiral ligands and complexes for asymmetric induction. This perspective highlights recent, important examples of non-symmetric pincer ligands, which feature aryl or pyridine backbones, and the synthesis and use of subsequent complexes in catalytic transformations, and discusses the future potential of this type of ligand system.
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Affiliation(s)
- Matthew Asay
- Instituto de Quimica, Universidad Nacional Autonoma de Mexico, Circuito Exterior S/N, Cuidad Universitaria Coyoacan, C.P. 04510, Mexico D.F., Mexico.
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27
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Kuriyama S, Arashiba K, Nakajima K, Tanaka H, Yoshizawa K, Nishibayashi Y. Nitrogen fixation catalyzed by ferrocene-substituted dinitrogen-bridged dimolybdenum-dinitrogen complexes: unique behavior of ferrocene moiety as redox active site. Chem Sci 2015; 6:3940-3951. [PMID: 29218165 PMCID: PMC5707465 DOI: 10.1039/c5sc00545k] [Citation(s) in RCA: 83] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2015] [Accepted: 04/17/2015] [Indexed: 11/22/2022] Open
Abstract
A series of dinitrogen-bridged dimolybdenum-dinitrogen complexes bearing metallocene-substituted PNP-pincer ligands is synthesized by the reduction of the corresponding monomeric molybdenum-trichloride complexes under 1 atm of molecular dinitrogen. Introduction of ferrocene as a redox-active moiety to the pyridine ring of the PNP-pincer ligand increases the catalytic activity for the formation of ammonia from molecular dinitrogen, up to 45 equiv. of ammonia being formed based on the catalyst (22 equiv. of ammonia based on each molybdenum atom of the catalyst). The time profile for the catalytic reaction reveals that the presence of the ferrocene unit in the catalyst increases the rate of ammonia formation. Electrochemical measurement and theoretical studies indicate that an interaction between the Fe atom of the ferrocene moiety and the Mo atom in the catalyst may play an important role to achieve a high catalytic activity.
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Affiliation(s)
- Shogo Kuriyama
- Institute of Engineering Innovation , School of Engineering , The University of Tokyo , Yayoi, Bunkyo-ku , Tokyo 113-8656 , Japan .
| | - Kazuya Arashiba
- Institute of Engineering Innovation , School of Engineering , The University of Tokyo , Yayoi, Bunkyo-ku , Tokyo 113-8656 , Japan .
| | - Kazunari Nakajima
- Institute of Engineering Innovation , School of Engineering , The University of Tokyo , Yayoi, Bunkyo-ku , Tokyo 113-8656 , Japan .
| | - Hiromasa Tanaka
- Elements Strategy Initiative for Catalysts and Batteries (ESICB) , Kyoto University , Nishikyo-ku , Kyoto 615-8520 , Japan
| | - Kazunari Yoshizawa
- Elements Strategy Initiative for Catalysts and Batteries (ESICB) , Kyoto University , Nishikyo-ku , Kyoto 615-8520 , Japan
- Institute for Materials Chemistry and Engineering and International Research Center for Molecular System , Kyushu University , Nishi-ku , Fukuoka 819-0395 , Japan .
| | - Yoshiaki Nishibayashi
- Institute of Engineering Innovation , School of Engineering , The University of Tokyo , Yayoi, Bunkyo-ku , Tokyo 113-8656 , Japan .
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28
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Nishibayashi Y. Recent progress in transition-metal-catalyzed reduction of molecular dinitrogen under ambient reaction conditions. Inorg Chem 2015; 54:9234-47. [PMID: 26131967 DOI: 10.1021/acs.inorgchem.5b00881] [Citation(s) in RCA: 154] [Impact Index Per Article: 17.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
This paper describes our recent progress in catalytic nitrogen fixation by using transition-metal-dinitrogen complexes as catalysts. Two reaction systems for the catalytic transformation of molecular dinitrogen into ammonia and its equivalent such as silylamine under ambient reaction conditions have been achieved by the molybdenum-, iron-, and cobalt-dinitrogen complexes as catalysts. Many new findings presented here may provide new access to the development of economical nitrogen fixation in place of the Haber-Bosch process.
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Affiliation(s)
- Yoshiaki Nishibayashi
- Institute of Engineering Innovation, School of Engineering, The University of Tokyo , Yayoi, Bunkyo-ku, Tokyo 113-8656, Japan
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29
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Arashiba K, Kinoshita E, Kuriyama S, Eizawa A, Nakajima K, Tanaka H, Yoshizawa K, Nishibayashi Y. Catalytic Reduction of Dinitrogen to Ammonia by Use of Molybdenum–Nitride Complexes Bearing a Tridentate Triphosphine as Catalysts. J Am Chem Soc 2015; 137:5666-9. [DOI: 10.1021/jacs.5b02579] [Citation(s) in RCA: 198] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Kazuya Arashiba
- Institute
of Engineering Innovation, School of Engineering, The University of Tokyo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Eriko Kinoshita
- Institute
of Engineering Innovation, School of Engineering, The University of Tokyo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Shogo Kuriyama
- Institute
of Engineering Innovation, School of Engineering, The University of Tokyo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Aya Eizawa
- Institute
of Engineering Innovation, School of Engineering, The University of Tokyo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Kazunari Nakajima
- Institute
of Engineering Innovation, School of Engineering, The University of Tokyo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Hiromasa Tanaka
- Elements
Strategy Initiative for Catalysts and Batteries (ESICB), Kyoto University, Nishikyo-ku, Kyoto 615-8520, Japan
| | - Kazunari Yoshizawa
- Elements
Strategy Initiative for Catalysts and Batteries (ESICB), Kyoto University, Nishikyo-ku, Kyoto 615-8520, Japan
- Institute
for Materials Chemistry and Engineering and International Research
Center for Molecular Systems, Kyushu University, Nishi-ku, Fukuoka 819-0395, Japan
| | - Yoshiaki Nishibayashi
- Institute
of Engineering Innovation, School of Engineering, The University of Tokyo, Bunkyo-ku, Tokyo 113-8656, Japan
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