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Yanagisawa C, Yamazoe S, Sunada Y. Silylene‐Bridged Tetranuclear Palladium Cluster as a Catalyst for Hydrogenation of Alkenes and Alkynes. ChemCatChem 2020. [DOI: 10.1002/cctc.202001387] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Chikako Yanagisawa
- Department of Applied Chemistry School of Engineering The University of Tokyo 4-6-1 Meguro-ku Komaba, Tokyo Japan
| | - Seiji Yamazoe
- Department of Chemistry Graduate School of Science Tokyo Metropolitan University 1-1 Minami-Osawa Hachioji-shi, Tokyo 192-0397 Japan
| | - Yusuke Sunada
- Department of Applied Chemistry School of Engineering The University of Tokyo 4-6-1 Meguro-ku Komaba, Tokyo Japan
- Institute of Industrial Science The University of Tokyo 4-6-1 Meguro-ku Komaba, Tokyo Japan
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2
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Wang W, Gao L, Wei H, Qi ZH, Zeng G, Cheng X, Wang G, Ma J. Selectivity control of Pd(PMe3)4-catalyzed hydrogenation of internal alkynes to E-alkenes by reaction time and water content in formic acid. Dalton Trans 2019; 48:10033-10042. [DOI: 10.1039/c9dt01676g] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
The modulation of selectivity of transfer hydrogenation of alkynes to E-alkenes using formic acid is achieved through the control of water content and reaction time.
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Affiliation(s)
- Wenmin Wang
- Key Laboratory of Mesoscopic Chemistry of MOE School of Chemistry & Chemical Engineering
- Nanjing University
- Nanjing
- People's Republic of China
- Jiangsu Key Laboratory of Advanced Organic Materials
| | - Liuzhou Gao
- Key Laboratory of Mesoscopic Chemistry of MOE School of Chemistry & Chemical Engineering
- Nanjing University
- Nanjing
- People's Republic of China
| | - Haiyan Wei
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials
- Jiangsu Provincial Key Laboratory for NSLSCS
- Jiangsu Key Laboratory of Biomedical Materials
- School of Chemistry and Materials Science
- Nanjing Normal University
| | - Zheng-Hang Qi
- Key Laboratory of Mesoscopic Chemistry of MOE School of Chemistry & Chemical Engineering
- Nanjing University
- Nanjing
- People's Republic of China
- Jiangsu Key Laboratory of Advanced Organic Materials
| | - Guixiang Zeng
- Kuang Yaming Honors School
- Nanjing University
- Nanjing
- P. R. China
- Institute for Brain Sciences
| | - Xu Cheng
- Jiangsu Key Laboratory of Advanced Organic Materials
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing
- P. R. China
| | - Guoqiang Wang
- Key Laboratory of Mesoscopic Chemistry of MOE School of Chemistry & Chemical Engineering
- Nanjing University
- Nanjing
- People's Republic of China
| | - Jing Ma
- Key Laboratory of Mesoscopic Chemistry of MOE School of Chemistry & Chemical Engineering
- Nanjing University
- Nanjing
- People's Republic of China
- Jiangsu Key Laboratory of Advanced Organic Materials
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3
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Johnson C, Albrecht M. Z-Selective alkyne semi-hydrogenation catalysed by piano-stool N-heterocyclic carbene iron complexes. Catal Sci Technol 2018. [DOI: 10.1039/c8cy00681d] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Piano-stool NHC iron complexes catalyze the selective semi-hydrogenation of alkynes without any over-reduction and with high selectivity towards Z-alkynes when starting from disubstituted alkynes.
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Affiliation(s)
- Chloe Johnson
- Department of Chemistry & Biochemistry
- University of Bern
- 3012 Bern
- Switzerland
| | - Martin Albrecht
- Department of Chemistry & Biochemistry
- University of Bern
- 3012 Bern
- Switzerland
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4
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Vanston CR, Kearley GJ, Edwards AJ, Darwish TA, de Souza NR, Ramirez-Cuesta AJ, Gardiner MG. The free-energy barrier to hydride transfer across a dipalladium complex. Faraday Discuss 2015; 177:99-109. [DOI: 10.1039/c4fd00182f] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We use density-functional theory molecular dynamics (DFT-MD) simulations to determine the hydride transfer coordinate between palladium centres of the crystallographically observed terminal hydride locations, Pd–Pd–H, originally postulated for the solution dynamics of the complex bis-NHC dipalladium hydride [{(MesIm)2CH2}2Pd2H][PF6], and then calculate the free-energy along this coordinate. We estimate the transfer barrier-height to be about 20 kcal mol−1 with a hydride transfer rate in the order of seconds at room temperature. We validate our DFT-MD modelling using inelastic neutron scattering which reveals anharmonicity of the hydride environment that is so pronounced that there is complete failure of the harmonic model for the hydride ligand. The simulations are extended to high temperature to bring the H-transfer to a rate that is accessible to the simulation technique.
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Affiliation(s)
- C. R. Vanston
- School of Physical Sciences (Chemistry)
- University of Tasmania
- Hobart
- Australia. E-mail:
| | - G. J. Kearley
- Bragg Institute
- Australian Nuclear Science and Technology Organization
- Kirrawee DC
- Australia
| | - A. J. Edwards
- Bragg Institute
- Australian Nuclear Science and Technology Organization
- Kirrawee DC
- Australia
| | - T. A. Darwish
- Bragg Institute
- Australian Nuclear Science and Technology Organization
- Kirrawee DC
- Australia
| | - N. R. de Souza
- Bragg Institute
- Australian Nuclear Science and Technology Organization
- Kirrawee DC
- Australia
| | - A. J. Ramirez-Cuesta
- Oakridge National Laboratory-Chemical and Engineering Materials Division
- Oakridge
- USA
| | - M. G. Gardiner
- School of Physical Sciences (Chemistry)
- University of Tasmania
- Hobart
- Australia. E-mail:
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5
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Gervasio G, Sappa E, Secco A. Advances in the chemistry of alkyne-substituted homo- and heterometallic carbonyl clusters of the iron, cobalt and nickel triads. An update. J Organomet Chem 2014. [DOI: 10.1016/j.jorganchem.2013.08.046] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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6
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Chen T, Zhou Y, Yin SF, Zhao Y, Goto M, Han LB. Identification of Alkenyl- and Arylpalladium Hydrides with the Aid of Hydrosilanes. CHEM LETT 2013. [DOI: 10.1246/cl.130588] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- Tieqiao Chen
- College of Chemistry and Chemical Engineering, Hunan University
| | - Yongbo Zhou
- College of Chemistry and Chemical Engineering, Hunan University
| | - Shuang-Feng Yin
- College of Chemistry and Chemical Engineering, Hunan University
| | - Yalei Zhao
- National Institute of Advanced Industrial Science and Technology (AIST)
| | - Midori Goto
- National Institute of Advanced Industrial Science and Technology (AIST)
| | - Li-Biao Han
- National Institute of Advanced Industrial Science and Technology (AIST)
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7
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Long W, Brunelli NA, Didas SA, Ping EW, Jones CW. Aminopolymer–Silica Composite-Supported Pd Catalysts for Selective Hydrogenation of Alkynes. ACS Catal 2013. [DOI: 10.1021/cs3007395] [Citation(s) in RCA: 101] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Wei Long
- School of Chemistry & Biochemistry and ‡School of Chemical &Biomolecular Engineering, Georgia Institute of Technology, 311 Ferst Drive, Atlanta, Georgia 30332, United States
| | - Nicholas A. Brunelli
- School of Chemistry & Biochemistry and ‡School of Chemical &Biomolecular Engineering, Georgia Institute of Technology, 311 Ferst Drive, Atlanta, Georgia 30332, United States
| | - Stephanie A. Didas
- School of Chemistry & Biochemistry and ‡School of Chemical &Biomolecular Engineering, Georgia Institute of Technology, 311 Ferst Drive, Atlanta, Georgia 30332, United States
| | - Eric W. Ping
- School of Chemistry & Biochemistry and ‡School of Chemical &Biomolecular Engineering, Georgia Institute of Technology, 311 Ferst Drive, Atlanta, Georgia 30332, United States
| | - Christopher W. Jones
- School of Chemistry & Biochemistry and ‡School of Chemical &Biomolecular Engineering, Georgia Institute of Technology, 311 Ferst Drive, Atlanta, Georgia 30332, United States
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8
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Kim SM, Park KH, Lee H, Moon SY, Jung OS. Synthesis, Structures, and Catalytic Properties of Ionic Metallacyclodimeric Palladium(II) Complexes. B KOREAN CHEM SOC 2012. [DOI: 10.5012/bkcs.2012.33.12.4069] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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9
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Fantasia S, Egbert J, Jurčík V, Cazin C, Jacobsen H, Cavallo L, Heinekey D, Nolan S. Activation of Hydrogen by Palladium(0): Formation of the Mononuclear Dihydride Complextrans-[Pd(H)2(IPr)(PCy3)]. Angew Chem Int Ed Engl 2009; 48:5182-6. [DOI: 10.1002/anie.200900463] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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10
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Fantasia S, Egbert J, Jurčík V, Cazin C, Jacobsen H, Cavallo L, Heinekey D, Nolan S. Activation of Hydrogen by Palladium(0): Formation of the Mononuclear Dihydride Complextrans-[Pd(H)2(IPr)(PCy3)]. Angew Chem Int Ed Engl 2009. [DOI: 10.1002/ange.200900463] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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11
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Gimenez IF, Alves OL. Thermal properties of metal-metal bonded Pd(I) complexes supported onto porous Vycor glass. AN ACAD BRAS CIENC 2008; 80:263-9. [DOI: 10.1590/s0001-37652008000200004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2006] [Accepted: 10/23/2007] [Indexed: 11/22/2022] Open
Abstract
Thermal behavior of the complexes Pd2(dppm)2Cl2, Pd2(dppm)2(SnCl3)Cl and Pd2(dppm)2(SnCl3)2 (dppm = bis[diphenylphosphino(methane)], ((C6H5)2PCH2P(C6H5)2) in the solid state and immobilized onto porous Vycor glass was studied. Similar decomposition mechanisms were observed for the solid and immobilized complexes, with a small thermal stabilization upon immobilization. The decomposition products were characterized by X-ray diffractometry, Raman and diffuse reflectance infrared spectroscopy, which indicated the presence of a mixture of metallic palladium and oxidized species such as PdO,condensed phosphates, SnO2 and SnP2O7. According to X-ray diffractometry, the decomposition products of the immobilized complexes presented higher amounts of PdO than the solid-state residues, probably as an effect of interactions with silanol groups present in the glass surface.
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12
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Cugnet C, Lucas D, Collange E, Hanquet B, Vallat A, Mugnier Y, Soldera A, Harvey PD. Generation, Characterization, and Electrochemical Behavior of the Palladium–Hydride Cluster [Pd3(dppm)3(μ3-CO)(μ3-H)]+ (dppm=Bis(diphenylphosphinomethane). Chemistry 2007; 13:5338-46. [PMID: 17455171 DOI: 10.1002/chem.200700069] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Addition of formate on the dicationic cluster [Pd(3)(dppm)(3)(mu(3)-CO)](2+) (dppm=bis(diphenylphosphinomethane) affords quantitatively the hydride cluster [Pd(3)(dppm)(3)(mu(3)-CO)(mu(3)-H)](+). This new palladium-hydride cluster has been characterised by (1)H NMR, (31)P NMR and UV/Vis spectroscopy and MALDI-TOF mass spectrometry. The unambiguous identification of the capping hydride was made from (2)H NMR spectroscopy by using DCO(2) (-) as starting material. The mechanism of the hydride complex formation was investigated by UV/Vis stopped-flow methods. The kinetic data are consistent with a two-step process involving: 1) host-guest interactions between HCO(2) (-) and [Pd(3)(dppm)(3)(mu(3)-CO)](2+) and 2) a reductive elimination of CO(2). Two alternatives routes to the hydride complex were also examined : 1) hydride transfer from NaBH(4) to [Pd(3)(dppm)(3)(mu(3)-CO)](2+) and 2) electrochemical reduction of [Pd(3)(dppm)(3)(mu(3)-CO)](2+) to [Pd(3)(dppm)(3)(mu(3)-CO)](0) followed by an addition of one equivalent of H(+). Based on cyclic voltammetry, evidence for a dual mechanism (ECE and EEC; E=electrochemical (one-electron transfer), C=chemical (hydride dissociation)) for the two-electron reduction of [Pd(3)(dppm)(3)(mu(3)-CO)(mu(3)-H)](+) to [Pd(3)(dppm)(3)(mu(3)-CO)](0) is provided, corroborated by digital simulation of the experimental results. Geometry optimisations of the [Pd(3)(H(2)PCH(2)PH(2))(3)(mu(3)-CO)(mu(3)-H)](n) model clusters were performed by using DFT at the B3 LYP level. Upon one-electron reductions, the Pd--Pd distance increases from a formal single bond (n=+1), to partially bonding (n=0), to weak metal-metal interactions (n=-1), while the Pd--H bond length remains relatively the same.
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Affiliation(s)
- Cyril Cugnet
- Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB), UMR CNRS 5260, Faculté des Sciences Mirande, Université de Bourgogne, 9 avenue Alain Savary, 21000 Dijon, France
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13
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Kovács G, Ujaque G, Lledós A, Joó F. The Role of Water in the Stereoselective Hydrogenation of 1,2-Diphenylacetylene Catalyzed by the Water-Soluble [{RuCl2(mtppms)2}2]. Eur J Inorg Chem 2007. [DOI: 10.1002/ejic.200601200] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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14
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Banditelli G, Bandini AL. Reaction of [Pt2(dppp)2(H)3][BF4] with Styrene or Phenylacetylene Gives the Same μ-Hydrido μ-Alkylidene Derivative, [Pt2(dppp)2(μ-H)(μ-CHCH2Ph)][BF4]. Organometallics 2006. [DOI: 10.1021/om050801g] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Guido Banditelli
- Dipartimento di Chimica Inorganica Metallorganica e Analitica, Via G. Venezian, 21, 20133 Milano, Italy
| | - Anna Laura Bandini
- Dipartimento di Chimica Inorganica Metallorganica e Analitica, Via G. Venezian, 21, 20133 Milano, Italy
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15
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Kluwer AM, Koblenz TS, Jonischkeit T, Woelk K, Elsevier CJ. Kinetic and Spectroscopic Studies of the [Palladium(Ar-bian)]-Catalyzed Semi-Hydrogenation of 4-Octyne. J Am Chem Soc 2005; 127:15470-80. [PMID: 16262411 DOI: 10.1021/ja052729j] [Citation(s) in RCA: 98] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The kinetics of the stereoselective semi-hydrogenation of 4-octyne in THF by the highly active catalyst [Pd{(m,m'-(CF(3))(2)C(6)H(3))-bian}(ma)] (2) (bian = bis(imino)acenaphthene; ma = maleic anhydride) has been investigated. The rate law under hydrogen-rich conditions is described by r = k[4-octyne](0.65)[Pd][H(2)], showing first order in palladium and dihydrogen and a broken order in substrate. Parahydrogen studies have shown that a pairwise transfer of hydrogen atoms occurs in the rate-limiting step. In agreement with recent theoretical results, the proposed mechanism consists of the consecutive steps: alkyne coordination, heterolytic dihydrogen activation (hydrogenolysis of one Pd-N bond), subsequent hydro-palladation of the alkyne, followed by addition of N-H to palladium, reductive coupling of vinyl and hydride and, finally, substitution of the product alkene by the alkyne substrate. Under hydrogen-limiting conditions, side reactions occur, that is, formation of catalytically inactive palladacycles by oxidative alkyne coupling. Furthermore, it has been shown that (Z)-oct-4-ene is the primary reaction product, from which the minor product (E)-oct-4-ene is formed by an H(2)-assisted, palladium-catalyzed isomerization reaction.
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Affiliation(s)
- Alexander M Kluwer
- Van't Hoff Institute for Molecular Sciences, Universiteit van Amsterdam, Nieuwe Achtergracht 166, 1018 WV Amsterdam, The Netherlands
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16
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Moura FC, dos Santos EN, Lago RM, Vargas MD, Araujo MH. Ir4 cluster-based selective catalytic hydrogenation of 1,5-cyclooctadiene. ACTA ACUST UNITED AC 2005. [DOI: 10.1016/j.molcata.2004.10.033] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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