1
|
Kumar A, Daw P, Milstein D. Homogeneous Catalysis for Sustainable Energy: Hydrogen and Methanol Economies, Fuels from Biomass, and Related Topics. Chem Rev 2021; 122:385-441. [PMID: 34727501 PMCID: PMC8759071 DOI: 10.1021/acs.chemrev.1c00412] [Citation(s) in RCA: 97] [Impact Index Per Article: 32.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
![]()
As the world pledges
to significantly cut carbon emissions, the
demand for sustainable and clean energy has now become more important
than ever. This includes both production and storage of energy carriers,
a majority of which involve catalytic reactions. This article reviews
recent developments of homogeneous catalysts in emerging applications
of sustainable energy. The most important focus has been on hydrogen
storage as several efficient homogeneous catalysts have been reported
recently for (de)hydrogenative transformations promising to the hydrogen
economy. Another direction that has been extensively covered in this
review is that of the methanol economy. Homogeneous catalysts investigated
for the production of methanol from CO2, CO, and HCOOH
have been discussed in detail. Moreover, catalytic processes for the
production of conventional fuels (higher alkanes such as diesel, wax)
from biomass or lower alkanes have also been discussed. A section
has also been dedicated to the production of ethylene glycol from
CO and H2 using homogeneous catalysts. Well-defined transition
metal complexes, in particular, pincer complexes, have been discussed
in more detail due to their high activity and well-studied mechanisms.
Collapse
Affiliation(s)
- Amit Kumar
- School of Chemistry, University of St. Andrews, North Haugh, Fife, U.K., KY16 9ST
| | - Prosenjit Daw
- Department of Chemical Sciences, Indian Institute of Science Education and Research Berhampur, Govt. ITI (transit Campus), Berhampur 760010, India
| | - David Milstein
- Department of Molecular Chemistry and Materials Science, Weizmann Institute of Science, Rehovot 76100, Israel
| |
Collapse
|
2
|
Giustra ZX, Chen G, Vasiliu M, Karkamkar A, Autrey T, Dixon DA, Liu SY. A comparison of hydrogen release kinetics from 5- and 6-membered 1,2-BN-cycloalkanes. RSC Adv 2021; 11:34132-34136. [PMID: 35497319 PMCID: PMC9042405 DOI: 10.1039/d1ra07477f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2021] [Accepted: 10/12/2021] [Indexed: 11/21/2022] Open
Abstract
The reaction order and Arrhenius activation parameters for spontaneous hydrogen release from cyclic amine boranes, i.e., BN-cycloalkanes, were determined for 1,2-BN-cyclohexane (1) and 3-methyl-1,2-BN-cyclopentane (2) in tetraglyme. Computational analysis identified a mechanism involving catalytic substrate activation by a ring-opened form of 1 or 2 as being consistent with experimental observations. The reaction order and Arrhenius activation parameters for spontaneous hydrogen release from cyclic amine boranes, i.e., BN-cycloalkanes, were determined for 1,2-BN-cyclohexane (1) and 3-methyl-1,2-BN-cyclopentane (2) in tetraglyme.![]()
Collapse
Affiliation(s)
- Zachary X. Giustra
- Department of Chemistry, Boston College, Chestnut Hill, Massachusetts 02467-3860, USA
| | - Gang Chen
- Department of Chemistry, Boston College, Chestnut Hill, Massachusetts 02467-3860, USA
| | - Monica Vasiliu
- Department of Chemistry, The University of Alabama, Tuscaloosa, Alabama 35487-0036, USA
| | - Abhijeet Karkamkar
- Pacific Northwest National Laboratories, Richland, Washington 99353, USA
| | - Tom Autrey
- Pacific Northwest National Laboratories, Richland, Washington 99353, USA
| | - David A. Dixon
- Department of Chemistry, The University of Alabama, Tuscaloosa, Alabama 35487-0036, USA
| | - Shih-Yuan Liu
- Department of Chemistry, Boston College, Chestnut Hill, Massachusetts 02467-3860, USA
| |
Collapse
|
3
|
Esteruelas MA, Martínez A, Oliván M, Oñate E. Direct C-H Borylation of Arenes Catalyzed by Saturated Hydride-Boryl-Iridium-POP Complexes: Kinetic Analysis of the Elemental Steps. Chemistry 2020; 26:12632-12644. [PMID: 32428335 DOI: 10.1002/chem.202001838] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Revised: 05/14/2020] [Indexed: 12/15/2022]
Abstract
The saturated trihydride IrH3 {κ3 -P,O,P-[xant(PiPr2 )2 ]} (1; xant(PiPr2 )2 =9,9-dimethyl-4,5-bis(diisopropylphosphino)xanthene) activates the B-H bond of two molecules of pinacolborane (HBpin) to give H2 , the hydride-boryl derivatives IrH2 (Bpin){κ3 -P,O,P-[xant(PiPr2 )2 ]} (2) and IrH(Bpin)2 {κ3 -P,O,P-[xant(PiPr2 )2 ]} (3) in a sequential manner. Complex 3 activates a C-H bond of two molecules of benzene to form PhBpin and regenerates 2 and 1, also in a sequential manner. Thus, complexes 1, 2, and 3 define two cycles for the catalytic direct C-H borylation of arenes with HBpin, which have dihydride 2 as a common intermediate. C-H bond activation of the arenes is the rate-determining step of both cycles, as the C-H oxidative addition to 3 is faster than to 2. The results from a kinetic study of the reactions of 1 and 2 with HBpin support a cooperative function of the hydride ligands in the B-H bond activation. The addition of the boron atom of the borane to a hydride facilitates the coordination of the B-H bond through the formation of κ1 - and κ2 -dihydrideborate intermediates.
Collapse
Affiliation(s)
- Miguel A Esteruelas
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), Centro de Innovación en Química Avanzada (ORFEO-CINQA), Universidad de Zaragoza-CSIC, 50009, Zaragoza, Spain
| | - Antonio Martínez
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), Centro de Innovación en Química Avanzada (ORFEO-CINQA), Universidad de Zaragoza-CSIC, 50009, Zaragoza, Spain
| | - Montserrat Oliván
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), Centro de Innovación en Química Avanzada (ORFEO-CINQA), Universidad de Zaragoza-CSIC, 50009, Zaragoza, Spain
| | - Enrique Oñate
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), Centro de Innovación en Química Avanzada (ORFEO-CINQA), Universidad de Zaragoza-CSIC, 50009, Zaragoza, Spain
| |
Collapse
|
4
|
Ryan DE, Andrea KA, Race JJ, Boyd TM, Lloyd-Jones GC, Weller AS. Amine–Borane Dehydropolymerization Using Rh-Based Precatalysts: Resting State, Chain Control, and Efficient Polymer Synthesis. ACS Catal 2020. [DOI: 10.1021/acscatal.0c02211] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- David E. Ryan
- Department of Chemistry, University of York, Heslington, York YO10 5DD, United Kingdom
- Department of Chemistry, Chemical Research Laboratories, University of Oxford, Oxford OX1 3TA, United Kingdom
| | - Kori A. Andrea
- Department of Chemistry, Memorial University of Newfoundland, St. John’s, Newfoundland A1B 3X7, Canada
| | - James J. Race
- Department of Chemistry, University of York, Heslington, York YO10 5DD, United Kingdom
- Department of Chemistry, Chemical Research Laboratories, University of Oxford, Oxford OX1 3TA, United Kingdom
| | - Timothy M. Boyd
- Department of Chemistry, University of York, Heslington, York YO10 5DD, United Kingdom
- Department of Chemistry, Chemical Research Laboratories, University of Oxford, Oxford OX1 3TA, United Kingdom
| | - Guy C. Lloyd-Jones
- School of Chemistry, University of Edinburgh, Edinburgh EH9 3FJ, United Kingdom
| | - Andrew S. Weller
- Department of Chemistry, University of York, Heslington, York YO10 5DD, United Kingdom
| |
Collapse
|
5
|
Guo Y, Wang X, Ma N, Cao Y, Hussain S, Zhang J, Wei D, Chen X. Mechanisms of the Reactions of B‐Substituted Amine Boranes with THF·BH
3. Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201900847] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Yu Guo
- Henan Key Laboratory of Boron Chemistry and Advanced Energy Materials School of Chemistry and Chemical Engineering Henan Normal University Xinxiang Henan 453007 China
| | - Xinghua Wang
- College of Chemistry and Molecular Engineering Zhengzhou University Zhengzhou Henan 450001 China
| | - Nana Ma
- Henan Key Laboratory of Boron Chemistry and Advanced Energy Materials School of Chemistry and Chemical Engineering Henan Normal University Xinxiang Henan 453007 China
| | - Yilin Cao
- Henan Key Laboratory of Boron Chemistry and Advanced Energy Materials School of Chemistry and Chemical Engineering Henan Normal University Xinxiang Henan 453007 China
| | - Sajjad Hussain
- Henan Key Laboratory of Boron Chemistry and Advanced Energy Materials School of Chemistry and Chemical Engineering Henan Normal University Xinxiang Henan 453007 China
| | - Jie Zhang
- Henan Key Laboratory of Boron Chemistry and Advanced Energy Materials School of Chemistry and Chemical Engineering Henan Normal University Xinxiang Henan 453007 China
| | - Donghui Wei
- College of Chemistry and Molecular Engineering Zhengzhou University Zhengzhou Henan 450001 China
| | - Xuenian Chen
- Henan Key Laboratory of Boron Chemistry and Advanced Energy Materials School of Chemistry and Chemical Engineering Henan Normal University Xinxiang Henan 453007 China
- College of Chemistry and Molecular Engineering Zhengzhou University Zhengzhou Henan 450001 China
| |
Collapse
|
6
|
Adams GM, Ryan DE, Beattie NA, McKay AI, Lloyd-Jones GC, Weller AS. Dehydropolymerization of H 3B·NMeH 2 Using a [Rh(DPEphos)] + Catalyst: The Promoting Effect of NMeH 2. ACS Catal 2019; 9:3657-3666. [PMID: 30984472 PMCID: PMC6454579 DOI: 10.1021/acscatal.9b00081] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2019] [Revised: 03/02/2019] [Indexed: 01/01/2023]
Abstract
![]()
[Rh(κ2-PP-DPEphos){η2η2-H2B(NMe3)(CH2)2tBu}][BArF4]
acts as an effective precatalyst
for the dehydropolymerization of H3B·NMeH2 to form N-methylpolyaminoborane (H2BNMeH)n. Control of polymer molecular weight is
achieved by variation of precatalyst loading (0.1–1 mol %,
an inverse relationship) and use of the chain-modifying agent H2: with Mn ranging between 5 500
and 34 900 g/mol and Đ between 1.5 and
1.8. H2 evolution studies (1,2-F2C6H4 solvent) reveal an induction period that gets longer
with higher precatalyst loading and complex kinetics with a noninteger
order in [Rh]TOTAL. Speciation studies at 10 mol % indicate
the initial formation of the amino–borane bridged dimer, [Rh2(κ2-PP-DPEphos)2(μ-H)(μ-H2BN=HMe)][BArF4], followed by the crystallographically
characterized amidodiboryl complex [Rh2(cis-κ2-PP-DPEphos)2(σ,μ-(H2B)2NHMe)][BArF4]. Adding
∼2 equiv of NMeH2 in tetrahydrofuran (THF) solution
to the precatalyst removes this induction period, pseudo-first-order
kinetics are observed, a half-order relationship to [Rh]TOTAL is revealed with regard to dehydrogenation, and polymer molecular
weights are increased (e.g., Mn = 40 000
g/mol). Speciation studies suggest that NMeH2 acts to form
the precatalysts [Rh(κ2-DPEphos)(NMeH2)2][BArF4] and [Rh(κ2-DPEphos)(H)2(NMeH2)2][BArF4], which were independently synthesized and shown to
follow very similar dehydrogenation kinetics, and produce polymers
of molecular weight comparable with [Rh(κ2-PP-DPEphos){η2-H2B(NMe3)(CH2)2tBu}][BArF4], which has been doped
with amine. This promoting effect of added amine in situ is shown
to be general in other cationic Rh-based systems, and possible mechanistic
scenarios are discussed.
Collapse
Affiliation(s)
- Gemma M. Adams
- Chemistry Research Laboratories, Mansfield Road, University of Oxford, Oxford OX1 3TA, United Kingdom
| | - David E. Ryan
- Chemistry Research Laboratories, Mansfield Road, University of Oxford, Oxford OX1 3TA, United Kingdom
| | - Nicholas A. Beattie
- Institute of Chemical Sciences, Heriot Watt University, Edinburgh EH14 4AS, United Kingdom
| | - Alasdair I. McKay
- Chemistry Research Laboratories, Mansfield Road, University of Oxford, Oxford OX1 3TA, United Kingdom
| | - Guy C. Lloyd-Jones
- School of Chemistry, University of Edinburgh, Edinburgh EH9 3FJ, United Kingdom
| | - Andrew S. Weller
- Chemistry Research Laboratories, Mansfield Road, University of Oxford, Oxford OX1 3TA, United Kingdom
| |
Collapse
|
7
|
|
8
|
Boudjelel M, Sosa Carrizo ED, Mallet−Ladeira S, Massou S, Miqueu K, Bouhadir G, Bourissou D. Catalytic Dehydrogenation of (Di)Amine-Boranes with a Geometrically Constrained Phosphine-Borane Lewis Pair. ACS Catal 2018. [DOI: 10.1021/acscatal.8b00152] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Maxime Boudjelel
- CNRS/Université Paul Sabatier, Laboratoire Hétérochimie Fondamentale et Appliquée (LHFA, UMR 5069), 118 Route de Narbonne, 31062 CEDEX 09 Toulouse, France
| | - E. Daiann Sosa Carrizo
- CNRS/UNIV PAU & PAYS ADOUR, Institut des Sciences Analytiques et de Physico-Chimie pour l’Environnement et les Matériaux (IPREM UMR 5254), Hélioparc, 2 Avenue du Président Angot, 64053 CEDEX 09 Pau, France
| | - Sonia Mallet−Ladeira
- Institut de Chimie de Toulouse (FR 2599), 118 Route de Narbonne, 31062 CEDEX 09 Toulouse, France
| | - Stéphane Massou
- Institut de Chimie de Toulouse (FR 2599), 118 Route de Narbonne, 31062 CEDEX 09 Toulouse, France
| | - Karinne Miqueu
- CNRS/UNIV PAU & PAYS ADOUR, Institut des Sciences Analytiques et de Physico-Chimie pour l’Environnement et les Matériaux (IPREM UMR 5254), Hélioparc, 2 Avenue du Président Angot, 64053 CEDEX 09 Pau, France
| | - Ghenwa Bouhadir
- CNRS/Université Paul Sabatier, Laboratoire Hétérochimie Fondamentale et Appliquée (LHFA, UMR 5069), 118 Route de Narbonne, 31062 CEDEX 09 Toulouse, France
| | - Didier Bourissou
- CNRS/Université Paul Sabatier, Laboratoire Hétérochimie Fondamentale et Appliquée (LHFA, UMR 5069), 118 Route de Narbonne, 31062 CEDEX 09 Toulouse, France
| |
Collapse
|
9
|
Babón JC, Esteruelas MA, Fernández I, López AM, Oñate E. Evidence for a Bis(Elongated σ)-Dihydrideborate Coordinated to Osmium. Inorg Chem 2018; 57:4482-4491. [DOI: 10.1021/acs.inorgchem.8b00155] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Juan C. Babón
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), Centro de Innovación en Química Avanzada (ORFEO−CINQA), Universidad de Zaragoza-CSIC, 50009 Zaragoza, Spain
| | - Miguel A. Esteruelas
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), Centro de Innovación en Química Avanzada (ORFEO−CINQA), Universidad de Zaragoza-CSIC, 50009 Zaragoza, Spain
| | - Israel Fernández
- Departamento de Química Orgánica I, Facultad de Ciencias Químicas, Centro de Innovación en Química Avanzada (ORFEO−CINQA), Universidad Complutense de Madrid, 28040 Madrid, Spain
| | - Ana M. López
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), Centro de Innovación en Química Avanzada (ORFEO−CINQA), Universidad de Zaragoza-CSIC, 50009 Zaragoza, Spain
| | - Enrique Oñate
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), Centro de Innovación en Química Avanzada (ORFEO−CINQA), Universidad de Zaragoza-CSIC, 50009 Zaragoza, Spain
| |
Collapse
|
10
|
Colebatch AL, Hawkey Gilder BW, Whittell GR, Oldroyd NL, Manners I, Weller AS. A General, Rhodium-Catalyzed, Synthesis of Deuterated Boranes andN-Methyl Polyaminoboranes. Chemistry 2018; 24:5450-5455. [DOI: 10.1002/chem.201800737] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2018] [Indexed: 11/05/2022]
Affiliation(s)
- Annie L. Colebatch
- Department of Chemistry; Chemistry Research Laboratory; University of Oxford; Mansfield Road Oxford OX1 3TA UK
| | - Benjamin W. Hawkey Gilder
- Department of Chemistry; Chemistry Research Laboratory; University of Oxford; Mansfield Road Oxford OX1 3TA UK
| | - George R. Whittell
- School of Chemistry; University of Bristol; Cantock's Close Bristol BS8 1TS UK
| | - Nicola L. Oldroyd
- School of Chemistry; University of Bristol; Cantock's Close Bristol BS8 1TS UK
| | - Ian Manners
- School of Chemistry; University of Bristol; Cantock's Close Bristol BS8 1TS UK
| | - Andrew S. Weller
- Department of Chemistry; Chemistry Research Laboratory; University of Oxford; Mansfield Road Oxford OX1 3TA UK
| |
Collapse
|
11
|
Adams GM, Colebatch AL, Skornia JT, McKay AI, Johnson HC, Lloyd−Jones GC, Macgregor SA, Beattie NA, Weller AS. Dehydropolymerization of H3B·NMeH2 To Form Polyaminoboranes Using [Rh(Xantphos-alkyl)] Catalysts. J Am Chem Soc 2018; 140:1481-1495. [DOI: 10.1021/jacs.7b11975] [Citation(s) in RCA: 64] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Gemma M. Adams
- Chemistry Research Laboratories, Mansfield Road, Oxford OX1 3TA, United Kingdom
| | - Annie L. Colebatch
- Chemistry Research Laboratories, Mansfield Road, Oxford OX1 3TA, United Kingdom
| | - Joseph T. Skornia
- Chemistry Research Laboratories, Mansfield Road, Oxford OX1 3TA, United Kingdom
| | - Alasdair I. McKay
- Chemistry Research Laboratories, Mansfield Road, Oxford OX1 3TA, United Kingdom
| | - Heather C. Johnson
- Chemistry Research Laboratories, Mansfield Road, Oxford OX1 3TA, United Kingdom
| | - Guy C. Lloyd−Jones
- School
of Chemistry, University of Edinburgh, Edinburgh EH9 3FJ, United Kingdom
| | - Stuart A. Macgregor
- Institute
of Chemical Sciences, Heriot Watt University, Edinburgh EH14 4AS, United Kingdom
| | - Nicholas A. Beattie
- Institute
of Chemical Sciences, Heriot Watt University, Edinburgh EH14 4AS, United Kingdom
| | - Andrew S. Weller
- Chemistry Research Laboratories, Mansfield Road, Oxford OX1 3TA, United Kingdom
| |
Collapse
|
12
|
Beguerie M, Dinoi C, del Rosal I, Faradji C, Alcaraz G, Vendier L, Sabo-Etienne S. Mechanistic Studies on the Catalytic Synthesis of BN Heterocycles (1H-2,1-Benzazaboroles) at Ruthenium. ACS Catal 2018. [DOI: 10.1021/acscatal.7b03461] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Marion Beguerie
- CNRS, LCC (Laboratoire de Chimie de Coordination), 205 route de Narbonne, BP 44099, F-31077 Toulouse Cedex
4, France
- Université de Toulouse, UPS, INPT, F-31077 Toulouse Cedex 4, France
| | - Chiara Dinoi
- Université de Toulouse, INSA, UPS, LPCNO (IRSAMC), 135 avenue de Rangueil, F-31077 Toulouse, France
- CNRS, UMR 5215 (IRSAMC), F-31077 Toulouse, France
| | - Iker del Rosal
- Université de Toulouse, INSA, UPS, LPCNO (IRSAMC), 135 avenue de Rangueil, F-31077 Toulouse, France
- CNRS, UMR 5215 (IRSAMC), F-31077 Toulouse, France
| | - Charly Faradji
- CNRS, LCC (Laboratoire de Chimie de Coordination), 205 route de Narbonne, BP 44099, F-31077 Toulouse Cedex
4, France
- Université de Toulouse, UPS, INPT, F-31077 Toulouse Cedex 4, France
| | - Gilles Alcaraz
- CNRS, LCC (Laboratoire de Chimie de Coordination), 205 route de Narbonne, BP 44099, F-31077 Toulouse Cedex
4, France
- Université de Toulouse, UPS, INPT, F-31077 Toulouse Cedex 4, France
| | - Laure Vendier
- CNRS, LCC (Laboratoire de Chimie de Coordination), 205 route de Narbonne, BP 44099, F-31077 Toulouse Cedex
4, France
- Université de Toulouse, UPS, INPT, F-31077 Toulouse Cedex 4, France
| | - Sylviane Sabo-Etienne
- CNRS, LCC (Laboratoire de Chimie de Coordination), 205 route de Narbonne, BP 44099, F-31077 Toulouse Cedex
4, France
- Université de Toulouse, UPS, INPT, F-31077 Toulouse Cedex 4, France
| |
Collapse
|
13
|
Exploring Promising Catalysts for Chemical Hydrogen Storage in Ammonia Borane: A Density Functional Theory Study. Catalysts 2017. [DOI: 10.3390/catal7050140] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
|
14
|
Resendiz-Lara DA, Stubbs NE, Arz MI, Pridmore NE, Sparkes HA, Manners I. Boron–nitrogen main chain analogues of polystyrene: poly(B-aryl)aminoboranes via catalytic dehydrocoupling. Chem Commun (Camb) 2017; 53:11701-11704. [DOI: 10.1039/c7cc07331c] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
High molecular weight B-arylated polyaminoboranes are obtained via catalytic dehydropolymerisation of B-aryl amine–boranes and represent the first inorganic polystyrene analogues with a B–N main chain.
Collapse
Affiliation(s)
| | | | - Marius I. Arz
- School of Chemistry
- University of Bristol
- Bristol BS8 1TS
- UK
| | | | | | - Ian Manners
- School of Chemistry
- University of Bristol
- Bristol BS8 1TS
- UK
| |
Collapse
|
15
|
|
16
|
Kumar A, Beattie NA, Pike SD, Macgregor SA, Weller AS. The Simplest Amino-borane H2 B=NH2 Trapped on a Rhodium Dimer: Pre-Catalysts for Amine-Borane Dehydropolymerization. Angew Chem Int Ed Engl 2016; 55:6651-6. [PMID: 27100775 PMCID: PMC5074255 DOI: 10.1002/anie.201600898] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2016] [Revised: 03/22/2016] [Indexed: 11/17/2022]
Abstract
The μ-amino-borane complexes [Rh2 (L(R) )2 (μ-H)(μ-H2 B=NHR')][BAr(F) 4 ] (L(R) =R2 P(CH2 )3 PR2 ; R=Ph, (i) Pr; R'=H, Me) form by addition of H3 B⋅NMeR'H2 to [Rh(L(R) )(η(6) -C6 H5 F)][BAr(F) 4 ]. DFT calculations demonstrate that the amino-borane interacts with the Rh centers through strong Rh-H and Rh-B interactions. Mechanistic investigations show that these dimers can form by a boronium-mediated route, and are pre-catalysts for amine-borane dehydropolymerization, suggesting a possible role for bimetallic motifs in catalysis.
Collapse
Affiliation(s)
- Amit Kumar
- Department of Chemistry, Chemistry Research Laboratories, University of Oxford, Mansfield Road, Oxford, OX1 3TA, UK
| | - Nicholas A Beattie
- Institute of Chemical Sciences, Heriot Watt University, Edinburgh, EH14 4AS, UK
| | - Sebastian D Pike
- Department of Chemistry, Chemistry Research Laboratories, University of Oxford, Mansfield Road, Oxford, OX1 3TA, UK
| | - Stuart A Macgregor
- Institute of Chemical Sciences, Heriot Watt University, Edinburgh, EH14 4AS, UK.
| | - Andrew S Weller
- Department of Chemistry, Chemistry Research Laboratories, University of Oxford, Mansfield Road, Oxford, OX1 3TA, UK.
| |
Collapse
|
17
|
Kumar A, Beattie NA, Pike SD, Macgregor SA, Weller AS. The Simplest Amino-borane H2B=NH2Trapped on a Rhodium Dimer: Pre-Catalysts for Amine-Borane Dehydropolymerization. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201600898] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Amit Kumar
- Department of Chemistry, Chemistry Research Laboratories; University of Oxford; Mansfield Road Oxford OX1 3TA UK
| | - Nicholas A. Beattie
- Institute of Chemical Sciences; Heriot Watt University; Edinburgh EH14 4AS UK
| | - Sebastian D. Pike
- Department of Chemistry, Chemistry Research Laboratories; University of Oxford; Mansfield Road Oxford OX1 3TA UK
| | - Stuart A. Macgregor
- Institute of Chemical Sciences; Heriot Watt University; Edinburgh EH14 4AS UK
| | - Andrew S. Weller
- Department of Chemistry, Chemistry Research Laboratories; University of Oxford; Mansfield Road Oxford OX1 3TA UK
| |
Collapse
|
18
|
Kumar A, Priest IK, Hooper TN, Weller AS. Variable coordination modes and catalytic dehydrogenation of B-phenyl amine–boranes. Dalton Trans 2016; 45:6183-95. [DOI: 10.1039/c6dt00197a] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
The binding mode ofB-aryl substituted amine–boranes at {Rh(bisphoshine)}+fragments can manipulated by variation of the P–Rh–P bite-angle.
Collapse
Affiliation(s)
- Amit Kumar
- Department of Chemistry
- University of Oxford
- Oxford
- UK
| | | | | | | |
Collapse
|