1
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Netam KD, Pal AK, Nethaji M, Jagirdar BR. Agostic interaction versus small molecule binding in [RuH(CO)(PPhNiPrPPh)]BAr4F complex. J Organomet Chem 2023. [DOI: 10.1016/j.jorganchem.2023.122693] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/29/2023]
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2
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Abeynayake NS, Zamora-Moreno J, Gorla S, Donnadieu B, Muñoz-Hernández MA, Montiel-Palma V. 14-Electron Rh and Ir silylphosphine complexes and their catalytic activity in alkene functionalization with hydrosilanes. Dalton Trans 2021; 50:11783-11792. [PMID: 34368827 DOI: 10.1039/d1dt00677k] [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
Herein we report an experimental and computational study of a family of four coordinated 14-electron complexes of Rh(iii) devoid of agostic interactions. The complexes [X-Rh(κ3(P,Si,Si)PhP(o-C6H4CH2SiiPr2)2], where X = Cl (Rh-1), Br (Rh-2), I (Rh-3), OTf (Rh-4), Cl·GaCl3 (Rh-5); derive from a bis(silyl)-o-tolylphosphine with isopropyl substituents on the Si atoms. All five complexes display a sawhorse geometry around Rh and exhibit similar spectroscopic and structural properties. The catalytic activity of these complexes and [Cl-Ir(κ3(P,Si,Si)PhP(o-C6H4CH2SiiPr2)2], Ir-1, in styrene and aliphatic alkene functionalizations with hydrosilanes is disclosed. We show that Rh-1 catalyzes effectively the dehydrogenative silylation of styrene with Et3SiH in toluene while it leads to hydrosilylation products in acetonitrile. Rh-1 is an excellent catalyst in the sequential isomerization/hydrosilylation of terminal and remote aliphatic alkenes with Et3SiH including hexene isomers, leading efficiently and selectively to the terminal anti-Markonikov hydrosilylation product in all cases. With aliphatic alkenes, no hydrogenation products are observed. Conversely, catalysis of the same hexene isomers by Ir-1 renders allyl silanes, the tandem isomerization/dehydrogenative silylation products. A mechanistic proposal is made to explain the catalysis with these M(iii) complexes.
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Affiliation(s)
- Niroshani S Abeynayake
- Department of Chemistry, Mississippi State University, Box 9573, Mississippi State, Mississippi 39762, USA.
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3
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Race JJ, Burnage AL, Boyd TM, Heyam A, Martínez-Martínez AJ, Macgregor SA, Weller AS. Ortho-aryl substituted DPEphos ligands: rhodium complexes featuring C-H anagostic interactions and B-H agostic bonds. Chem Sci 2021; 12:8832-8843. [PMID: 34257884 PMCID: PMC8246285 DOI: 10.1039/d1sc01430g] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Accepted: 05/24/2021] [Indexed: 11/29/2022] Open
Abstract
The synthesis of new Schrock–Osborn Rh(i) pre-catalysts with ortho-substituted DPEphos ligands, [Rh(DPEphos-R)(NBD)][BArF4] [R = Me, OMe, iPr; ArF = 3,5-(CF3)2C6H3], is described. Along with the previously reported R = H variant, variable temperature 1H NMR spectroscopic and single-crystal X-ray diffraction studies show that these all have axial (C–H)⋯Rh anagostic interactions relative to the d8 pseudo square planar metal centres, that also result in corresponding downfield chemical shifts. Analysis by NBO, QTAIM and NCI methods shows these to be only very weak C–H⋯Rh bonding interactions, the magnitudes of which do not correlate with the observed chemical shifts. Instead, as informed by Scherer's approach, it is the topological positioning of the C–H bond with regard to the metal centre that is important. For [Rh(DPEphos–iPr)(NBD)][BArF4] addition of H2 results in a Rh(iii) iPr–C–H activated product, [Rh(κ3,σ-P,O,P-DPEphos-iPr′)(H)][BArF4]. This undergoes H/D exchange with D2 at the iPr groups, reacts with CO or NBD to return Rh(i) products, and reaction with H3B·NMe3/tert-butylethene results in a dehydrogenative borylation to form a complex that shows both a non-classical B–H⋯Rh 3c-2e agostic bond and a C–H⋯Rh anagostic interaction at the same metal centre. Rh(i) complexes of ortho-substituted DPEphos-R (R = H, Me, OMe, iPr) ligands show anagostic interactions; for R =iPr C–H activation/dehydrogenative borylation forms a product exhibiting both B–H/Rh 3c-2e agostic and C–H/Rh anagostic motifs.![]()
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Affiliation(s)
- James J Race
- Department of Chemistry, University of York Heslington York YO10 5DD UK .,Chemistry Research Laboratories, University of Oxford Oxford OX1 3TA UK
| | - Arron L Burnage
- Institute of Chemical Sciences, Heriot Watt University Edinburgh EH14 4AS UK
| | - Timothy M Boyd
- Department of Chemistry, University of York Heslington York YO10 5DD UK .,Chemistry Research Laboratories, University of Oxford Oxford OX1 3TA UK
| | - Alex Heyam
- Chemistry Research Laboratories, University of Oxford Oxford OX1 3TA UK
| | | | - Stuart A Macgregor
- Institute of Chemical Sciences, Heriot Watt University Edinburgh EH14 4AS UK
| | - Andrew S Weller
- Department of Chemistry, University of York Heslington York YO10 5DD UK
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4
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McKay AI, Barwick‐Silk J, Savage M, Willis MC, Weller AS. Synthesis of Highly Fluorinated Arene Complexes of [Rh(Chelating Phosphine)] + Cations, and their use in Synthesis and Catalysis. Chemistry 2020; 26:2883-2889. [PMID: 31749160 PMCID: PMC7078928 DOI: 10.1002/chem.201904668] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2019] [Revised: 11/19/2019] [Indexed: 11/17/2022]
Abstract
The synthesis of rhodium complexes with weakly binding highly fluorinated benzene ligands is described: 1,2,3-F3 C6 H3 , 1,2,3,4-F4 C6 H2 and 1,2,3,4,5-F5 C6 H are shown to bind with cationic [Rh(Cy2 P(CH2 )x PCy2 )]+ fragments (x=1, 2). Their structures and reactivity with alkenes, and use in catalysis for promoting the Tishchenko reaction of a simple aldehyde, are demonstrated. Key to the synthesis of these complexes is the highly concentrated reaction conditions and use of the [Al{OC(CF3 )3 }4 ]- anion.
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Affiliation(s)
- Alasdair I. McKay
- Department of ChemistryChemistry Research LaboratoryUniversity of OxfordMansfield RoadOxfordOX1 3TAUK
| | - James Barwick‐Silk
- Department of ChemistryChemistry Research LaboratoryUniversity of OxfordMansfield RoadOxfordOX1 3TAUK
| | - Max Savage
- Department of ChemistryChemistry Research LaboratoryUniversity of OxfordMansfield RoadOxfordOX1 3TAUK
| | - Michael C. Willis
- Department of ChemistryChemistry Research LaboratoryUniversity of OxfordMansfield RoadOxfordOX1 3TAUK
| | - Andrew S. Weller
- Department of ChemistryChemistry Research LaboratoryUniversity of OxfordMansfield RoadOxfordOX1 3TAUK
- Department of ChemistryUniversity of YorkYorkYO10 5DDUK
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5
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McKay AI, Bukvic AJ, Tegner BE, Burnage AL, Martı Nez-Martı Nez AJ, Rees NH, Macgregor SA, Weller AS. Room Temperature Acceptorless Alkane Dehydrogenation from Molecular σ-Alkane Complexes. J Am Chem Soc 2019; 141:11700-11712. [PMID: 31246012 PMCID: PMC7007236 DOI: 10.1021/jacs.9b05577] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The non-oxidative catalytic dehydrogenation of light alkanes via C-H activation is a highly endothermic process that generally requires high temperatures and/or a sacrificial hydrogen acceptor to overcome unfavorable thermodynamics. This is complicated by alkanes being such poor ligands, meaning that binding at metal centers prior to C-H activation is disfavored. We demonstrate that by biasing the pre-equilibrium of alkane binding, by using solid-state molecular organometallic chemistry (SMOM-chem), well-defined isobutane and cyclohexane σ-complexes, [Rh(Cy2PCH2CH2PCy2)(η:η-(H3C)CH(CH3)2][BArF4] and [Rh(Cy2PCH2CH2PCy2)(η:η-C6H12)][BArF4] can be prepared by simple hydrogenation in a solid/gas single-crystal to single-crystal transformation of precursor alkene complexes. Solid-gas H/D exchange with D2 occurs at all C-H bonds in both alkane complexes, pointing to a variety of low energy fluxional processes that occur for the bound alkane ligands in the solid-state. These are probed by variable temperature solid-state nuclear magnetic resonance experiments and periodic density functional theory (DFT) calculations. These alkane σ-complexes undergo spontaneous acceptorless dehydrogenation at 298 K to reform the corresponding isobutene and cyclohexadiene complexes, by simple application of vacuum or Ar-flow to remove H2. These processes can be followed temporally, and modeled using classical chemical, or Johnson-Mehl-Avrami-Kologoromov, kinetics. When per-deuteration is coupled with dehydrogenation of cyclohexane to cyclohexadiene, this allows for two successive KIEs to be determined [kH/kD = 3.6(5) and 10.8(6)], showing that the rate-determining steps involve C-H activation. Periodic DFT calculations predict overall barriers of 20.6 and 24.4 kcal/mol for the two dehydrogenation steps, in good agreement with the values determined experimentally. The calculations also identify significant C-H bond elongation in both rate-limiting transition states and suggest that the large kH/kD for the second dehydrogenation results from a pre-equilibrium involving C-H oxidative cleavage and a subsequent rate-limiting β-H transfer step.
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Affiliation(s)
- Alasdair I McKay
- Chemistry Research Laboratories, University of Oxford , Oxford OX1 3TA , United Kingdom
| | - Alexander J Bukvic
- Chemistry Research Laboratories, University of Oxford , Oxford OX1 3TA , United Kingdom
| | - Bengt E Tegner
- Institute of Chemical Sciences, Heriot Watt University , Edinburgh EH14 4AS , United Kingdom
| | - Arron L Burnage
- Institute of Chemical Sciences, Heriot Watt University , Edinburgh EH14 4AS , United Kingdom
| | | | - Nicholas H Rees
- Chemistry Research Laboratories, University of Oxford , Oxford OX1 3TA , United Kingdom
| | - Stuart A Macgregor
- Institute of Chemical Sciences, Heriot Watt University , Edinburgh EH14 4AS , United Kingdom
| | - Andrew S Weller
- Chemistry Research Laboratories, University of Oxford , Oxford OX1 3TA , United Kingdom
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6
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Corona-González MV, Zamora-Moreno J, Muñoz-Hernández MA, Vendier L, Sabo-Etienne S, Montiel-Palma V. Exploiting the Versatility of Phosphinobenzylsilanes for the Stabilization of 14-Electron Rhodium(III) and Iridium(III) Complexes. Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201900107] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- María Vicky Corona-González
- Centro de Investigaciones Químicas; IICBA; Universidad Autónoma del Estado de Morelos; Avenida Universidad 1001, Col. Chamilpa 62209 Cuernavaca, Morelos, C. P. Mexico
- LCC-CNRS; IICBA; Université de Toulouse, CNRS, UPS; 205 route de Narbonne, BP 44099 31077 Toulouse Cedex 4 France
| | - Julio Zamora-Moreno
- Centro de Investigaciones Químicas; IICBA; Universidad Autónoma del Estado de Morelos; Avenida Universidad 1001, Col. Chamilpa 62209 Cuernavaca, Morelos, C. P. Mexico
| | - Miguel A. Muñoz-Hernández
- Centro de Investigaciones Químicas; IICBA; Universidad Autónoma del Estado de Morelos; Avenida Universidad 1001, Col. Chamilpa 62209 Cuernavaca, Morelos, C. P. Mexico
| | - Laure Vendier
- LCC-CNRS; IICBA; Université de Toulouse, CNRS, UPS; 205 route de Narbonne, BP 44099 31077 Toulouse Cedex 4 France
| | - Sylviane Sabo-Etienne
- LCC-CNRS; IICBA; Université de Toulouse, CNRS, UPS; 205 route de Narbonne, BP 44099 31077 Toulouse Cedex 4 France
| | - Virginia Montiel-Palma
- Centro de Investigaciones Químicas; IICBA; Universidad Autónoma del Estado de Morelos; Avenida Universidad 1001, Col. Chamilpa 62209 Cuernavaca, Morelos, C. P. Mexico
- Department of Chemistry; IICBA; Mississippi State University; Box 9573 39762 Mississippi State Mississippi USA
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7
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Hoffbauer MR, Comanescu CC, Dymm BJ, Iluc VM. Influence of the Leaving Group on C–H Activation Pathways in Palladium Pincer Complexes. Organometallics 2018. [DOI: 10.1021/acs.organomet.8b00237] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Melissa R. Hoffbauer
- Department of Chemistry and Biochemistry, University of Notre Dame, 251 Nieuwland Science Hall, Notre Dame, Indiana 46556, United States
| | - Cezar C. Comanescu
- Department of Chemistry and Biochemistry, University of Notre Dame, 251 Nieuwland Science Hall, Notre Dame, Indiana 46556, United States
| | - Brittany J. Dymm
- Department of Chemistry and Biochemistry, University of Notre Dame, 251 Nieuwland Science Hall, Notre Dame, Indiana 46556, United States
| | - Vlad M. Iluc
- Department of Chemistry and Biochemistry, University of Notre Dame, 251 Nieuwland Science Hall, Notre Dame, Indiana 46556, United States
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8
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Knighton RC, Emerson‐King J, Rourke JP, Ohlin CA, Chaplin AB. Solution, Solid-State, and Computational Analysis of Agostic Interactions in a Coherent Set of Low-Coordinate Rhodium(III) and Iridium(III) Complexes. Chemistry 2018; 24:4927-4938. [PMID: 29377308 PMCID: PMC5901041 DOI: 10.1002/chem.201705990] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Indexed: 11/16/2022]
Abstract
A homologous family of low-coordinate complexes of the formulation trans-[M(2,2'-biphenyl)(PR3 )2 ][BArF4 ] (M=Rh, Ir; R=Ph, Cy, iPr, iBu) has been prepared and extensively structurally characterised. Enabled through a comprehensive set of solution phase (VT 1 H and 31 P NMR spectroscopy) and solid-state (single crystal X-ray diffraction) data, and analysis in silico (DFT-based NBO and QTAIM analysis), the structural features of the constituent agostic interactions have been systematically interrogated. The combined data substantiates the adoption of stronger agostic interactions for the IrIII compared to RhIII complexes and, with respect to the phosphine ligands, in the order PiBu3 >PCy3 >PiPr3 >PPh3 . In addition to these structure-property relationships, the effect of crystal packing on the agostic interactions was investigated in the tricyclohexylphosphine complexes. Compression of the associated cations, through inclusion of a more bulky solvent molecule (1,2-difluorobenzene vs. CH2 Cl2 ) in the lattice or collection of data at very low temperature (25 vs. 150 K), lead to small but statistically significant shortening of the M-H-C distances.
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Affiliation(s)
- Richard C. Knighton
- Department of ChemistryUniversity of WarwickGibbet Hill RoadCoventryCV4 7ALUK
| | - Jack Emerson‐King
- Department of ChemistryUniversity of WarwickGibbet Hill RoadCoventryCV4 7ALUK
| | - Jonathan P. Rourke
- Department of ChemistryUniversity of WarwickGibbet Hill RoadCoventryCV4 7ALUK
| | - C. André Ohlin
- Department of ChemistryUmeå UniversityLinneausvag 6907 34UmeåSweden
| | - Adrian B. Chaplin
- Department of ChemistryUniversity of WarwickGibbet Hill RoadCoventryCV4 7ALUK
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9
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Ramaraj A, Reddy KHK, Keil H, Herbst-Irmer R, Stalke D, Jemmis ED, Jagirdar BR. Approaches to Sigma Complexes via Displacement of Agostic Interactions: An Experimental and Theoretical Investigation. Organometallics 2017. [DOI: 10.1021/acs.organomet.7b00210] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- A. Ramaraj
- Department of Inorganic & Physical Chemistry, Indian Institute of Science, Bangalore 560 012, India
| | - K. Hari Krishna Reddy
- Department of Inorganic & Physical Chemistry, Indian Institute of Science, Bangalore 560 012, India
| | - Helena Keil
- Institut
für Anorganische Chemie, Universität Göttingen, Tammannstrasse
4, 37077 Göttingen, Germany
| | - Regine Herbst-Irmer
- Institut
für Anorganische Chemie, Universität Göttingen, Tammannstrasse
4, 37077 Göttingen, Germany
| | - Dietmar Stalke
- Institut
für Anorganische Chemie, Universität Göttingen, Tammannstrasse
4, 37077 Göttingen, Germany
| | - Eluvathingal D. Jemmis
- Department of Inorganic & Physical Chemistry, Indian Institute of Science, Bangalore 560 012, India
| | - Balaji R. Jagirdar
- Department of Inorganic & Physical Chemistry, Indian Institute of Science, Bangalore 560 012, India
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10
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Pike SD, Crimmin MR, Chaplin AB. Organometallic chemistry using partially fluorinated benzenes. Chem Commun (Camb) 2017; 53:3615-3633. [DOI: 10.1039/c6cc09575e] [Citation(s) in RCA: 72] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Fluorobenzenes, in particular fluorobenzene (FB) and 1,2-difluorobenzene (1,2-DiFB), are versatile solvents for conducting organometallic chemistry and transition-metal-based catalysis.
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Affiliation(s)
| | - Mark R. Crimmin
- Department of Chemistry
- Imperial College London
- London SW7 2AZ
- UK
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11
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Investigation of agostic interaction through NBO analysis and its impact on β-hydride elimination and dehydrogenation: a DFT approach. Theor Chem Acc 2016. [DOI: 10.1007/s00214-016-1939-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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12
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Geer AM, López JA, Ciriano MA, Tejel C. Agostic versus Terminal Ethyl Rhodium Complexes: A Combined Experimental and Theoretical Study. Organometallics 2016. [DOI: 10.1021/acs.organomet.6b00036] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Ana M. Geer
- Departamento
Química
Inorgánica, Instituto de Síntesis Química y Catálisis
Homogénea (ISQCH), CSIC-Universidad de Zaragoza, Pedro Cerbuna
12, 50009-Zaragoza, Spain
| | - José A. López
- Departamento
Química
Inorgánica, Instituto de Síntesis Química y Catálisis
Homogénea (ISQCH), CSIC-Universidad de Zaragoza, Pedro Cerbuna
12, 50009-Zaragoza, Spain
| | - Miguel A. Ciriano
- Departamento
Química
Inorgánica, Instituto de Síntesis Química y Catálisis
Homogénea (ISQCH), CSIC-Universidad de Zaragoza, Pedro Cerbuna
12, 50009-Zaragoza, Spain
| | - Cristina Tejel
- Departamento
Química
Inorgánica, Instituto de Síntesis Química y Catálisis
Homogénea (ISQCH), CSIC-Universidad de Zaragoza, Pedro Cerbuna
12, 50009-Zaragoza, Spain
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13
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14
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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.
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Affiliation(s)
- Amit Kumar
- Department of Chemistry
- University of Oxford
- Oxford
- UK
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15
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Relative binding affinities of fluorobenzene ligands in cationic rhodium bisphosphine η6–fluorobenzene complexes probed using collision-induced dissociation. J Organomet Chem 2015. [DOI: 10.1016/j.jorganchem.2014.08.012] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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16
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Pike SD, Chadwick FM, Rees NH, Scott MP, Weller AS, Krämer T, Macgregor SA. Solid-state synthesis and characterization of σ-alkane complexes, [Rh(L2)(η(2),η(2)-C7H12)][BAr(F)4] (L2 = bidentate chelating phosphine). J Am Chem Soc 2015; 137:820-33. [PMID: 25506741 DOI: 10.1021/ja510437p] [Citation(s) in RCA: 66] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
The use of solid/gas and single-crystal to single-crystal synthetic routes is reported for the synthesis and characterization of a number of σ-alkane complexes: [Rh(R2P(CH2)nPR2)(η(2),η(2)-C7H12)][BAr(F)4]; R = Cy, n = 2; R = (i)Pr, n = 2,3; Ar = 3,5-C6H3(CF3)2. These norbornane adducts are formed by simple hydrogenation of the corresponding norbornadiene precursor in the solid state. For R = Cy (n = 2), the resulting complex is remarkably stable (months at 298 K), allowing for full characterization using single-crystal X-ray diffraction. The solid-state structure shows no disorder, and the structural metrics can be accurately determined, while the (1)H chemical shifts of the Rh···H-C motif can be determined using solid-state NMR spectroscopy. DFT calculations show that the bonding between the metal fragment and the alkane can be best characterized as a three-center, two-electron interaction, of which σCH → Rh donation is the major component. The other alkane complexes exhibit solid-state (31)P NMR data consistent with their formation, but they are now much less persistent at 298 K and ultimately give the corresponding zwitterions in which [BAr(F)4](-) coordinates and NBA is lost. The solid-state structures, as determined by X-ray crystallography, for all these [BAr(F)4](-) adducts are reported. DFT calculations suggest that the molecular zwitterions within these structures are all significantly more stable than their corresponding σ-alkane cations, suggesting that the solid-state motif has a strong influence on their observed relative stabilities.
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Affiliation(s)
- Sebastian D Pike
- Department of Chemistry, Chemistry Research Laboratories, University of Oxford , Mansfield Road, Oxford OX1 3TA, U.K
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Chaplin AB. Rhodium(I) Complexes of the Conformationally Rigid IBioxMe4 Ligand: Preparation of Mono-, Bis-, and Tris-ligated NHC Complexes. Organometallics 2014. [DOI: 10.1021/om500332n] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Adrian B. Chaplin
- Department of Chemistry, University of Warwick, Gibbet Hill
Road, Coventry CV4 7AL, U.K
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18
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Chaplin AB. Rhodium(I) Complexes of the Conformationally Rigid IBioxMe4 Ligand: Isolation of a Stable Low-Coordinate T-Shaped Complex. Organometallics 2014. [DOI: 10.1021/om401223w] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Adrian B. Chaplin
- Department
of Chemistry, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, U.K
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19
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Etienne M, Weller AS. Intramolecular C–C agostic complexes: C–C sigma interactions by another name. Chem Soc Rev 2014; 43:242-59. [DOI: 10.1039/c3cs60295h] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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20
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van der Eide EF, Yang P, Bullock RM. Isolation of Two Agostic Isomers of an Organometallic Cation: Different Structures and Colors. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201305032] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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21
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van der Eide EF, Yang P, Bullock RM. Isolation of Two Agostic Isomers of an Organometallic Cation: Different Structures and Colors. Angew Chem Int Ed Engl 2013; 52:10190-4. [PMID: 23897712 DOI: 10.1002/anie.201305032] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2013] [Indexed: 11/06/2022]
Affiliation(s)
- Edwin F van der Eide
- Physical Sciences Division, Pacific Northwest National Laboratory, P.O. Box 999, Richland, WA 99352 (USA)
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22
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The influence of phosphine cone angle on the synthesis and structures of [Rh(PR3)(Binor–S)]+ complexes that show C–C sigma interactions. J Organomet Chem 2013. [DOI: 10.1016/j.jorganchem.2012.09.013] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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23
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Shuttleworth TA, Huertos MA, Pernik I, Young RD, Weller AS. Bis(phosphine)boronium salts. Synthesis, structures and coordination chemistry. Dalton Trans 2013; 42:12917-25. [DOI: 10.1039/c3dt50817j] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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Pernik I, Hooper JF, Chaplin AB, Weller AS, Willis MC. Exploring Small Bite-Angle Ligands for the Rhodium-Catalyzed Intermolecular Hydroacylation of β-S-Substituted Aldehydes with 1-Octene and 1-Octyne. ACS Catal 2012. [DOI: 10.1021/cs300541m] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Indrek Pernik
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, Mansfield Road,
Oxford, OX1 3TA, U.K
| | - Joel F. Hooper
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, Mansfield Road,
Oxford, OX1 3TA, U.K
| | - Adrian B. Chaplin
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, Mansfield Road,
Oxford, OX1 3TA, U.K
| | - Andrew S. Weller
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, Mansfield Road,
Oxford, OX1 3TA, U.K
| | - Michael C. Willis
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, Mansfield Road,
Oxford, OX1 3TA, U.K
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25
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Pike SD, Thompson AL, Algarra AG, Apperley DC, Macgregor SA, Weller AS. Synthesis and characterization of a rhodium(I) σ-alkane complex in the solid state. Science 2012; 337:1648-51. [PMID: 22923436 DOI: 10.1126/science.1225028] [Citation(s) in RCA: 111] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
Transition metal-alkane complexes-termed σ-complexes because the alkane donates electron density to the metal from a σ-symmetry carbon-hydrogen (C-H) orbital-are key intermediates in catalytic C-H activation processes, yet these complexes remain tantalizingly elusive to characterization in the solid state by single-crystal x-ray diffraction techniques. Here, we report an approach to the synthesis and characterization of transition metal-alkane complexes in the solid state by a simple gas-solid reaction to produce an alkane σ-complex directly. This strategy enables the structural determination, by x-ray diffraction, of an alkane (norbornane) σ-bound to a d(8)-rhodium(I) metal center, in which the chelating alkane ligand is coordinated to the pseudosquare planar metal center through two σ-C-H bonds.
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Affiliation(s)
- Sebastian D Pike
- Department of Chemistry, Chemical Research Laboratories, Oxford, UK
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26
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Hasegawa M, Segawa Y, Yamashita M, Nozaki K. Isolation of a PBP-pincer rhodium complex stabilized by an intermolecular C-H σ coordination as the fourth ligand. Angew Chem Int Ed Engl 2012; 51:6956-60. [PMID: 22674733 DOI: 10.1002/anie.201201916] [Citation(s) in RCA: 93] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2012] [Revised: 04/10/2012] [Indexed: 11/12/2022]
Abstract
A little help from my friends: a highly reactive, 16-electron square-planar rhodium complex was isolated. This species displays an intermolecular interaction between the rhodium and the C-H bond of another molecule as the fourth ligand to form an infinite network in the crystal lattice. The complex undergoes oxidative addition to the O-H bond of phenol or a primary alkyl alcohol to give the corresponding hydrido-phenoxido Rh(III) complex or carbonyl Rh(I) complex, respectively.
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Affiliation(s)
- Maki Hasegawa
- Department of Chemistry and Biotechnology, Graduate School of Engineering, The University of Tokyo, Bunkyo-ku, Japan
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27
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Hasegawa M, Segawa Y, Yamashita M, Nozaki K. Isolation of a PBP-Pincer Rhodium Complex Stabilized by an Intermolecular CH σ Coordination as the Fourth Ligand. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201201916] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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28
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Dallanegra R, Chaplin AB, Weller AS. Rhodium Cyclopentyl Phosphine Complexes of Wide-Bite-Angle Ligands DPEphos and Xantphos. Organometallics 2012. [DOI: 10.1021/om201034m] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Romaeo Dallanegra
- Department of Chemistry, Inorganic
Chemistry Laboratories, University of Oxford, Oxford, OX1 3QR, U.K
| | - Adrian B. Chaplin
- Department of Chemistry, Inorganic
Chemistry Laboratories, University of Oxford, Oxford, OX1 3QR, U.K
| | - Andrew S. Weller
- Department of Chemistry, Inorganic
Chemistry Laboratories, University of Oxford, Oxford, OX1 3QR, U.K
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29
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Grellier M, Sabo-Etienne S. Dehydrogenation processes via C–H activation within alkylphosphines. Chem Commun (Camb) 2012; 48:34-42. [DOI: 10.1039/c1cc14676a] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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30
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Chaplin AB, Weller AS. [Rh{NC5H3-2,6-(CH2PtBu2)2}(PCy3)][BArF4]: A Latent Low-Coordinate Rhodium(I) PNP Pincer Compound. Organometallics 2011. [DOI: 10.1021/om2004964] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Adrian B. Chaplin
- Department of Chemistry, Inorganic Chemistry Laboratory, University of Oxford, Oxford, OX1 3QR, U.K
| | - Andrew S. Weller
- Department of Chemistry, Inorganic Chemistry Laboratory, University of Oxford, Oxford, OX1 3QR, U.K
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31
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Wade CR, Lin TP, Nelson RC, Mader EA, Miller JT, Gabbaï FP. Synthesis, Structure, and Properties of a T-Shaped 14-Electron Stiboranyl-Gold Complex. J Am Chem Soc 2011; 133:8948-55. [DOI: 10.1021/ja201092g] [Citation(s) in RCA: 70] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Casey R. Wade
- Department of Chemistry, Texas A&M University, College Station, Texas 77843-3255, United States
| | - Tzu-Pin Lin
- Department of Chemistry, Texas A&M University, College Station, Texas 77843-3255, United States
| | - Ryan C. Nelson
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Argonne, Illinois 60439-4837, United States
| | - Elizabeth A. Mader
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Argonne, Illinois 60439-4837, United States
| | - Jeffrey T. Miller
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Argonne, Illinois 60439-4837, United States
| | - François P. Gabbaï
- Department of Chemistry, Texas A&M University, College Station, Texas 77843-3255, United States
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32
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Guido E, D’Amico G, Russo N, Sicilia E, Rizzato S, Albinati A, Romeo A, Plutino MR, Romeo R. Mechanistic Insight into Protonolysis and Cis−Trans Isomerization of Benzylplatinum(II) Complexes Assisted by Weak Ligand-to-Metal Interactions. A Combined Kinetic and DFT Study. Inorg Chem 2011; 50:2224-39. [DOI: 10.1021/ic101879s] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Emanuela Guido
- Dipartimento di Chimica Inorganica, Chimica Analitica e Chimica Fisica, Università di Messina, Viale F. Stagno D'Alcontres 31, Vill. S. Agata, I-98166 Messina, Italy
| | - Giuseppina D’Amico
- Dipartimento di Chimica Inorganica, Chimica Analitica e Chimica Fisica, Università di Messina, Viale F. Stagno D'Alcontres 31, Vill. S. Agata, I-98166 Messina, Italy
| | - Nino Russo
- Dipartimento di Chimica, Università della Calabria, I-87030 Arcavacata di Rende (Cs), Italy
| | - Emilia Sicilia
- Dipartimento di Chimica, Università della Calabria, I-87030 Arcavacata di Rende (Cs), Italy
| | - Silvia Rizzato
- Dipartimento di Chimica Strutturale e Facoltà di Farmacia, via Venezian 21, Università di Milano, Milano, Italy
| | - Alberto Albinati
- Dipartimento di Chimica Strutturale e Facoltà di Farmacia, via Venezian 21, Università di Milano, Milano, Italy
| | - Andrea Romeo
- Dipartimento di Chimica Inorganica, Chimica Analitica e Chimica Fisica, Università di Messina, Viale F. Stagno D'Alcontres 31, Vill. S. Agata, I-98166 Messina, Italy
| | - M. Rosaria Plutino
- Istituto per lo Studio dei Materiali Nanostrutturati, ISMN-CNR, Unità di Messina-Sezione di Palermo, c/o Dip. di Chim. Inorg., Chim. Anal., Chim. Fis., Università di Messina, Viale F. Stagno D'Alcontres 31, Vill. S. Agata, I-98166 Messina, Italy
| | - Raffaello Romeo
- Dipartimento di Chimica Inorganica, Chimica Analitica e Chimica Fisica, Università di Messina, Viale F. Stagno D'Alcontres 31, Vill. S. Agata, I-98166 Messina, Italy
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Dallanegra R, Pilgrim BS, Chaplin AB, Donohoe TJ, Weller AS. Dehydrogenation of cyclic thioethers bound to a [Rh(diphosphine)]+ fragment. Dalton Trans 2011; 40:6626-8. [DOI: 10.1039/c1dt10503e] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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34
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Townsend NS, Chaplin AB, Abu Naser M, Thompson AL, Rees NH, Macgregor SA, Weller AS. Reactivity of the latent 12-electron fragment [Rh(PiBu3)2]+ with aryl bromides: aryl-Br and phosphine ligand C-H activation. Chemistry 2010; 16:8376-89. [PMID: 20572181 DOI: 10.1002/chem.201000554] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Oxidative addition of aryl bromides to 12-electron [Rh(PiBu(3))(2)][BAr(F)(4)] (Ar(F)=3,5-(CF(3))(2)C(6)H(3)) forms a variety of products. With p-tolyl bromides, Rh(III) dimeric complexes result [Rh(PiBu(3))(2)(o/p-MeC(6)H(4))(mu-Br)](2)[BAr(F)(4)](2). Similarly, reaction with p-ClC(6)H(4)Br gives [Rh(PiBu(3))(2)(p-ClC(6)H(4))(mu-Br)](2)[BAr(F)(4)](2). In contrast, the use of o-BrC(6)H(4)Me leads to a product in which toluene has been eliminated and an isobutyl phosphine has undergone C-H activation: [Rh{PiBu(2)(CH(2)CHCH(3)CH(2))}(PiBu(3))(mu-Br)](2)[BAr(F)(4)](2). Trapping experiments with ortho-bromo anisole or ortho-bromo thioanisole indicate that a possible intermediate for this process is a low-coordinate Rh(III) complex that then undergoes C-H activation. The anisole and thioanisole complexes have been isolated and their structures show OMe or SMe interactions with the metal centre alongside supporting agostic interactions, [Rh(PiBu(3))(2)(C(6)H(4)OMe)Br][BAr(F)(4)] (the solid-state structure of the 5-methyl substituted analogue is reported) and [Rh(PiBu(3))(2)(C(6)H(4)SMe)Br][BAr(F)(4)]. The anisole-derived complex proceeds to give [Rh{PiBu(2)(CH(2)CHCH(3)CH(2))}(PiBu(3))(mu-Br)](2)[BAr(F)(4)](2), whereas the thioanisole complex is unreactive. The isolation of [Rh(PiBu(3))(2)(C(6)H(4)OMe)Br][BAr(F)(4)] and its onward reactivity to give the products of C-H activation and aryl elimination suggest that it is implicated on the pathway of a sigma-bond metathesis reaction, a hypothesis strengthened by DFT calculations. Calculations also suggest that C-H bond cleavage through phosphine-assisted deprotonation of a non-agostic bond is also competitive, although the subsequent protonation of the aryl ligand is too high in energy to account for product formation. C-H activation through oxidative addition is also ruled out on the basis of these calculations. These new complexes have been characterised by solution NMR/ESIMS techniques and in the solid-state by X-ray crystallography.
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Affiliation(s)
- Nell S Townsend
- Department of Chemistry, Inorganic Chemistry Laboratory, University of Oxford, South Parks Road, Oxford, OX1 3QR UK
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35
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Chaplin AB, Tonner R, Weller AS. Isolation of a Low-Coordinate Rhodium Phosphine Complex Formed by C−C Bond Activation of Biphenylene. Organometallics 2010. [DOI: 10.1021/om100149w] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Adrian B. Chaplin
- Department of Chemistry, Inorganic Chemistry Laboratory, University of Oxford, OX1 3QR Oxford, U.K
| | - Ralf Tonner
- Centre for Theoretical Chemistry and Physics, New Zealand Institute for Advanced Study, Massey University Albany, Private Bag 102904, North Shore MSC, 0745 Auckland, New Zealand
| | - Andrew S. Weller
- Department of Chemistry, Inorganic Chemistry Laboratory, University of Oxford, OX1 3QR Oxford, U.K
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36
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Chaplin AB, Weller AS. C−C Bond Activation of a Cyclopropyl Phosphine: Isolation and Reactivity of a Tetrameric Rhodacyclobutane. Organometallics 2010. [DOI: 10.1021/om100105p] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Adrian B. Chaplin
- Inorganic Chemistry Laboratory, Department of Chemistry, University of Oxford, OX1 3QR Oxford, U.K
| | - Andrew S. Weller
- Inorganic Chemistry Laboratory, Department of Chemistry, University of Oxford, OX1 3QR Oxford, U.K
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37
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Moret S, Dallanegra R, Chaplin AB, Douglas TM, Hiney RM, Weller AS. Alkyl dehydrogenation in iridium tri-cyclopentyl phosphines. Inorganica Chim Acta 2010. [DOI: 10.1016/j.ica.2009.03.004] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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38
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Balcells D, Clot E, Eisenstein O. C—H Bond Activation in Transition Metal Species from a Computational Perspective. Chem Rev 2010; 110:749-823. [PMID: 20067255 DOI: 10.1021/cr900315k] [Citation(s) in RCA: 843] [Impact Index Per Article: 60.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- David Balcells
- Institut Charles Gerhardt, Université Montpellier 2, CNRS 5253, cc 1501, Place Eugène Bataillon, 34000 Montpellier, France
| | - Eric Clot
- Institut Charles Gerhardt, Université Montpellier 2, CNRS 5253, cc 1501, Place Eugène Bataillon, 34000 Montpellier, France
| | - Odile Eisenstein
- Institut Charles Gerhardt, Université Montpellier 2, CNRS 5253, cc 1501, Place Eugène Bataillon, 34000 Montpellier, France
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39
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Chaplin A, Weller A. BH Activation at a Rhodium(I) Center: Isolation of a Bimetallic Complex Relevant to the Transition-Metal-Catalyzed Dehydrocoupling of AmineâBoranes. Angew Chem Int Ed Engl 2010. [DOI: 10.1002/ange.200905185] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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40
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Chaplin AB, Weller AS. Amine− and Dimeric Amino−Borane Complexes of the {Rh(PiPr3)2}+ Fragment and Their Relevance to the Transition-Metal-Mediated Dehydrocoupling of Amine−Boranes. Inorg Chem 2010; 49:1111-21. [DOI: 10.1021/ic9020542] [Citation(s) in RCA: 67] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Adrian B. Chaplin
- Department of Inorganic Chemistry, University of Oxford, Oxford, OX1 3QR, United Kingdom
| | - Andrew S. Weller
- Department of Inorganic Chemistry, University of Oxford, Oxford, OX1 3QR, United Kingdom
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41
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Chaplin A, Weller A. BH Activation at a Rhodium(I) Center: Isolation of a Bimetallic Complex Relevant to the Transition-Metal-Catalyzed Dehydrocoupling of Amine-Boranes. Angew Chem Int Ed Engl 2009; 49:581-4. [DOI: 10.1002/anie.200905185] [Citation(s) in RCA: 109] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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42
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Blug M, Le Goff XF, Mézailles N, Le Floch P. A 14-VE Platinum(0) Phosphabarrelene Complex in the Hydrosilylation of Alkynes. Organometallics 2009. [DOI: 10.1021/om900067f] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Matthias Blug
- Laboratoire “Hétéroéléments et Coordination”, Ecole Polytechnique, CNRS, 91128 Palaiseau Cédex, France
| | - Xavier-Frederic Le Goff
- Laboratoire “Hétéroéléments et Coordination”, Ecole Polytechnique, CNRS, 91128 Palaiseau Cédex, France
| | - Nicolas Mézailles
- Laboratoire “Hétéroéléments et Coordination”, Ecole Polytechnique, CNRS, 91128 Palaiseau Cédex, France
| | - Pascal Le Floch
- Laboratoire “Hétéroéléments et Coordination”, Ecole Polytechnique, CNRS, 91128 Palaiseau Cédex, France
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43
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Angelini A, Aresta M, Dibenedetto A, Pastore C, Quaranta E, Chierotti MR, Gobetto R, Pápai I, Graiff C, Tiripicchio A. Synthesis and X-ray characterization of [RhCl(C2H4)(PiPr3)]2. Multinuclear NMR and DFT investigation of its solid-state and solution reaction with dihydrogen. Ethene and propene hydrogenation by the solid Rh-hydrides. Dalton Trans 2009:7924-33. [DOI: 10.1039/b903354h] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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