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Chlebík R, Fekete C, Jambor R, Růžička A, Benkő Z, Dostál L. Antimony centre in three different roles: does donor strength or acceptor ability determine the bonding pattern? Dalton Trans 2024. [PMID: 39420754 DOI: 10.1039/d4dt02787f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2024]
Abstract
A set of antimony(III) compounds containing a ligand (Ar) with a pendant guanidine function (where Ar = 2-[(Me2N)2CN]C6H4) was prepared and characterized. This includes triorgano-Ar3Sb, diorgano-Ar2SbCl and monoorgano-ArSbCl2 compounds and they were characterized by 1H and 13C NMR spectroscopy and by single-crystal X-ray diffraction analysis (sc-XRD). The coordination capability of Ar3Sb and Ar2SbCl was examined in the reactions with either cis-[PdCl2(CH3CN)2] or PtCl2 and complexes cis-[(κ2-Sb,N-Ar3Sb)MCl2] (M = Pd 1, Pt 2) and [(κ3-N,Sb,N-Ar2SbCl)MCl2] (M = Pd 3, Pt 4) were isolated, while their structures were determined by sc-XRD. Notably, the ligands Ar3Sb and Ar2SbCl exhibit different coordination modes - bidentate and tridentate, respectively - and the antimony exhibits three distinct bonding modes in complexes 1-4, which were also subjected to theoretical studies.
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Affiliation(s)
- Richard Chlebík
- Department of General and Inorganic Chemistry, University of Pardubice, Studentská 573, CZ 532 10 Pardubice, Czech Republic.
| | - Csilla Fekete
- Department of Inorganic and Analytical Chemistry, Budapest University of Technology and Economics, Műegyetem rkp 3, H-1111 Budapest, Hungary.
| | - Roman Jambor
- Department of General and Inorganic Chemistry, University of Pardubice, Studentská 573, CZ 532 10 Pardubice, Czech Republic.
| | - Aleš Růžička
- Department of General and Inorganic Chemistry, University of Pardubice, Studentská 573, CZ 532 10 Pardubice, Czech Republic.
| | - Zoltán Benkő
- Department of Inorganic and Analytical Chemistry, Budapest University of Technology and Economics, Műegyetem rkp 3, H-1111 Budapest, Hungary.
- HUN-REN-BME Computation Driven Chemistry Research Group, Műegyetem rkp 3, H-1111 Budapest, Hungary
| | - Libor Dostál
- Department of General and Inorganic Chemistry, University of Pardubice, Studentská 573, CZ 532 10 Pardubice, Czech Republic.
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2
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Mikherdov AS, Jin M, Ito H. Exploring Au(i) involving halogen bonding with N-heterocyclic carbene Au(i) aryl complexes in crystalline media. Chem Sci 2023; 14:4485-4494. [PMID: 37152261 PMCID: PMC10155931 DOI: 10.1039/d3sc00373f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2023] [Accepted: 04/07/2023] [Indexed: 05/09/2023] Open
Abstract
Among the known types of non-covalent interactions with a Au(i) metal center, Au(i) involving halogen bonding (XB) remains a rare phenomenon that has not been studied systematically. Herein, using five N-heterocyclic carbene (NHC) Au(i) aryl complexes and two iodoperfluoroarenes as XB donors, we demonstrated that the XB involving the Au(i) metal center can be predictably obtained for neutral Au(i) complexes using the example of nine co-crystals. The presence of XB involving the Au(i) center was experimentally investigated by single-crystal X-ray diffraction and solid-state 13C CP-MAS NMR methods, and their nature was elucidated through DFT calculations, followed by electron density, electrostatic potential, and orbital analyses. The obtained results revealed a connection between the structure and HOMO localization of Au(i) complexes as XB acceptors, and the geometrical, electronic, and spectroscopic features of XB interactions, as well as the supramolecular structure of the co-crystals.
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Affiliation(s)
- Alexander S Mikherdov
- Institute for Chemical Reaction Design and Discovery (WPI-ICReDD), Hokkaido University Sapporo Hokkaido 060-8628 Japan
| | - Mingoo Jin
- Institute for Chemical Reaction Design and Discovery (WPI-ICReDD), Hokkaido University Sapporo Hokkaido 060-8628 Japan
| | - Hajime Ito
- Institute for Chemical Reaction Design and Discovery (WPI-ICReDD), Hokkaido University Sapporo Hokkaido 060-8628 Japan
- Division of Applied Chemistry, Graduate School of Engineering, Hokkaido University Sapporo Hokkaido 060-8628 Japan
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3
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Theulier CA, García-Rodeja Y, Miqueu K, Bouhadir G, Bourissou D. Lewis Acid-Assisted C(sp 3)-C(sp 3) Reductive Elimination at Gold. J Am Chem Soc 2023; 145:10800-10808. [PMID: 37137163 DOI: 10.1021/jacs.3c01974] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
The phosphine-borane iPr2P(o-C6H4)BFxyl2 (Fxyl = 3,5-(F3C)2C6H3) 1-Fxyl was found to promote the reductive elimination of ethane from [AuMe2(μ-Cl)]2. Nuclear magnetic resonance monitoring revealed the intermediate formation of the (1-Fxyl)AuMe2Cl complex. Density functional theory calculations identified a zwitterionic path as the lowest energy profile, with an overall activation barrier more than 10 kcal/mol lower than without borane assistance. The Lewis acid moiety first abstracts the chloride to generate a zwitterionic Au(III) complex, which then readily undergoes C(sp3)-C(sp3) coupling. The chloride is finally transferred back from boron to gold. The electronic features of this Lewis-assisted reductive elimination at gold have been deciphered by intrinsic bond orbital analyses. Sufficient Lewis acidity of boron is required for the ambiphilic ligand to trigger the C(sp3)-C(sp3) coupling, as shown by complementary studies with two other phosphine-boranes, and the addition of chlorides slows down the reductive elimination of ethane.
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Affiliation(s)
- Cyril A Theulier
- CNRS/Université Paul Sabatier, Laboratoire Hétérochimie Fondamentale et Appliquée (LHFA, UMR 5069), 118 Route de Narbonne, 31062 Cedex 09 Toulouse, France
| | - Yago García-Rodeja
- CNRS/Université de Pau et des Pays de l'Adour, E2S UPPA, 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
| | - Karinne Miqueu
- CNRS/Université de Pau et des Pays de l'Adour, E2S UPPA, 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
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4
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Wehmeyer FU, Langer R. A hampered oxidative addition of pre-coordinated pincer ligands can favour alternative pathways of activation. Chem Commun (Camb) 2023; 59:6004-6007. [PMID: 37114407 DOI: 10.1039/d3cc00874f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
Abstract
Pre-coordination to a transition metal by the terminal donor groups of a tri-dentate ligand is a common strategy to stabilise elusive groups, to achieve unprecedented bond activation and to develop novel modes of metal-ligand-cooperation for catalysis. In the current manuscript, we demonstrate that the oxidative addition of a central E-H-bond after pre-coordination to the metal centre is disfavoured for metals with d10 electron configuration. For exemplary pincer ligands and metals with d10 electron configuration, quantum chemical calculations suggest a second barrier, which is associated with the rearrangement of the saw-horse structure, obtained after oxidative addition, to the expected square planar geometry for the resulting d8 electron configuration. In the case of PBP-type ligands with a central L2BH2-group (L = R3P) the reaction with Pt0 precursors proceeds via an alternative pathway of activation, which involves the backside attack of a nucleophile to the boron atom, which facilitates the nucleophilic attack of the Pt0 centre and formation of a boryl complex (LBH2). As the corresponding reaction with a PtII precursor leads to B-H- instead of B-L-activation and formation of complex 2 with a L2BH donor, our results show that ligand-stabilized borylenes (L2BH) can in principle be converted to boryls (LBH2) via boronium salts (L2BH2+).
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Affiliation(s)
- Frerk-Ulfert Wehmeyer
- Institute of Chemistry, Faculty of Natural Sciences II, Martin-Luther-Universität Halle-Wittenberg, Kurt-Mothes-Str. 2, D-06120 Halle (Saale), Germany.
| | - Robert Langer
- Institute of Chemistry, Faculty of Natural Sciences II, Martin-Luther-Universität Halle-Wittenberg, Kurt-Mothes-Str. 2, D-06120 Halle (Saale), Germany.
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5
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Wickemeyer L, Schwabedissen J, Trapp PC, Neumann B, Stammler HG, Mitzel NW. ortho-Phenylene-bridged phosphorus/silicon Lewis pairs. Dalton Trans 2023; 52:2611-2618. [PMID: 36740914 DOI: 10.1039/d2dt04097b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
A series of five ortho-phenylene-bridged phosphorus-silicon Lewis pairs was synthesized, with phosphorus bearing isopropyl groups while the substituents at the silicon atom vary (-CH3, -Cl, -F). Possible interactions between Lewis acid and base were investigated both experimentally (NMR, XRD) and theoretically to determine the influence of the different substituents. Calculated ortho-interaction energies (OIEs) show a stabilizing interactions between the acidic and basic units which were also found for the meta- and para-interaction energies (MIEs and PIEs, respectively), indicating stabilization resulting not from direct acid-base interaction but from electronic interactions through the ring. Further spectroscopic (NMR, XRD) and theoretical (NBO, QTAIM, SAPT) investigations confirmed the absence of direct interactions between silicon and phoshorus.
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Affiliation(s)
- Lucas Wickemeyer
- Lehrstuhl für Anorganische Chemie und Strukturchemie, Centrum für Molekulare Materialien CM2, Fakultät für Chemie, Universität Bielefeld, Universitätsstraße 25, 33615 Bielefeld, Germany.
| | - Jan Schwabedissen
- Lehrstuhl für Anorganische Chemie und Strukturchemie, Centrum für Molekulare Materialien CM2, Fakultät für Chemie, Universität Bielefeld, Universitätsstraße 25, 33615 Bielefeld, Germany.
| | - Pia C Trapp
- Lehrstuhl für Anorganische Chemie und Strukturchemie, Centrum für Molekulare Materialien CM2, Fakultät für Chemie, Universität Bielefeld, Universitätsstraße 25, 33615 Bielefeld, Germany.
| | - Beate Neumann
- Lehrstuhl für Anorganische Chemie und Strukturchemie, Centrum für Molekulare Materialien CM2, Fakultät für Chemie, Universität Bielefeld, Universitätsstraße 25, 33615 Bielefeld, Germany.
| | - Hans-Georg Stammler
- Lehrstuhl für Anorganische Chemie und Strukturchemie, Centrum für Molekulare Materialien CM2, Fakultät für Chemie, Universität Bielefeld, Universitätsstraße 25, 33615 Bielefeld, Germany.
| | - Norbert W Mitzel
- Lehrstuhl für Anorganische Chemie und Strukturchemie, Centrum für Molekulare Materialien CM2, Fakultät für Chemie, Universität Bielefeld, Universitätsstraße 25, 33615 Bielefeld, Germany.
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6
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Komuro T, Nakajima Y, Takaya J, Hashimoto H. Recent progress in transition metal complexes supported by multidentate ligands featuring group 13 and 14 elements as coordinating atoms. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2022.214837] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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7
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Michaliszyn K, Smirnova ES, Bucci A, Martin-Diaconescu V, Lloret-Fillol J. Well‐defined Nickel P3C Complexes as Hydrogenation Catalysts of N‐Heteroarenes Under Mild Conditions. ChemCatChem 2022. [DOI: 10.1002/cctc.202200039] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
| | | | - Alberto Bucci
- ICIQ: Institut Catala d'Investigacio Quimica - SPAIN
| | | | - Julio Lloret-Fillol
- Institute of Chemical Research of Catalonia (ICIQ) - Ave. Paisos Catalans 16Spain 43005 Tarragona SPAIN
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8
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Kishino M, Takaoka S, Shibutani Y, Kusumoto S, Nozaki K. Synthesis and reactivity of PC(sp 3)P-pincer iridium complexes bearing a diborylmethyl anion. Dalton Trans 2022; 51:5009-5015. [PMID: 35296874 DOI: 10.1039/d2dt00513a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Novel PCP-pincer iridium complexes bearing a diborylmethyl anion were synthesized. Strong σ-electron-donation to the metal and significant π-backdonation from the metal to boron atoms at the β-position were observed both experimentally and computationally. H/D exchange of the aromatic C-H bond proceeded smoothly and, in addition, the α-methine-hydrogen between boron atoms was found to be replaced with deuterium in benzene-d6 solution possibly through diborylcarbene metal complexes as intermediates.
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Affiliation(s)
- Masamichi Kishino
- Department of Chemistry and Biotechnology, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan.
| | - Satoko Takaoka
- Department of Chemistry and Biotechnology, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan.
| | - Yuki Shibutani
- Department of Chemistry and Biotechnology, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan.
| | - Shuhei Kusumoto
- Department of Chemistry and Biotechnology, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan.
| | - Kyoko Nozaki
- Department of Chemistry and Biotechnology, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan.
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9
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Fukuda K, Harada T, Iwasawa N, Takaya J. Facile Synthesis and Utilization of Bis(o-phosphinophenyl)zinc as Isolable PZnP-pincer Ligands Enabled by Boron-Zinc Double Transmetallation. Dalton Trans 2022; 51:7035-7039. [DOI: 10.1039/d2dt01222g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Bis(o-phosphinophenyl)zinc derivatives were successfully synthesized by the reaction of o-phosphinophenylboronates with dimethylzinc via boron-zinc double transmetallation. The transmetallation was significantly accelerated by the presence of the ortho PR2 substituent to...
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10
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Furan S, Molkenthin M, Winkels K, Lork E, Mebs S, Hupf E, Beckmann J. Tris(6-diphenylphosphinoacenaphth-5-yl)gallium: Z-Type Ligand and Transmetalation Reagent. Organometallics 2021. [DOI: 10.1021/acs.organomet.1c00522] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Sinas Furan
- Institut für Anorganische Chemie, Universität Bremen, Leobener Straße 7, 28359 Bremen, Germany
| | - Martin Molkenthin
- Institut für Anorganische Chemie, Universität Bremen, Leobener Straße 7, 28359 Bremen, Germany
| | - Konrad Winkels
- Institut für Anorganische Chemie, Universität Bremen, Leobener Straße 7, 28359 Bremen, Germany
| | - Enno Lork
- Institut für Anorganische Chemie, Universität Bremen, Leobener Straße 7, 28359 Bremen, Germany
| | - Stefan Mebs
- Institut für Experimentalphysik, Freie Universität Berlin, Arnimallee 14, 14195 Berlin, Germany
| | - Emanuel Hupf
- Institut für Anorganische Chemie, Universität Bremen, Leobener Straße 7, 28359 Bremen, Germany
| | - Jens Beckmann
- Institut für Anorganische Chemie, Universität Bremen, Leobener Straße 7, 28359 Bremen, Germany
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11
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Zhou J, Litle ED, Gabbaï FP. Isolation and reactivity of a gold(I) hydroxytrifluoroborate complex stabilized by anion-π + interactions. Chem Commun (Camb) 2021; 57:10154-10157. [PMID: 34486616 DOI: 10.1039/d1cc04105c] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A 9,9-dimethylxanthene-based ligand substituted at the 4- and 5-positions by a phosphine and a xanthylium unit, respectively, has been prepared and converted into an AuCl complex, the structure of which reveals an intramolecular Au-Cl⋯π+ interaction. This new ligand platform was also found to support the formation of an unprecedented hydroxytrifluoroborate derivative featuring a "hard/soft" mismatched Au-μ(OH)-BF3 motif. Despite its surprising stability, this gold hydroxytrifluoroborate complex is a remarkably potent carbophilic catalyst which readily activates alkynes, without activator.
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Affiliation(s)
- Jiliang Zhou
- Department of Chemistry, Texas A&M University, College Station, TX 77843, USA.
| | - Elishua D Litle
- Department of Chemistry, Texas A&M University, College Station, TX 77843, USA.
| | - François P Gabbaï
- Department of Chemistry, Texas A&M University, College Station, TX 77843, USA.
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12
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Kiernicki JJ, Norwine EE, Zeller M, Szymczak NK. Substrate Specific Metal-Ligand Cooperative Binding: Considerations for Weak Intramolecular Lewis Acid/Base Pairs. Inorg Chem 2021; 60:13806-13810. [PMID: 34242009 DOI: 10.1021/acs.inorgchem.1c01382] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Metal-ligand cooperative binding modes were interrogated in a series of zinc bis(thiophenoxide) complexes. A weak B-S binding interaction is observed in solution between the weakly Lewis basic thiophenoxide ligands and an appended trialkylborane. The energy of this binding event is dependent upon the strength of the Lewis acid and its proximity to the zinc thiophenoxide.
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Affiliation(s)
- John J Kiernicki
- Department of Chemistry, University of Michigan, 930 North University Avenue, Ann Arbor, Michigan 48109, United States
| | - Emily E Norwine
- Department of Chemistry, University of Michigan, 930 North University Avenue, Ann Arbor, Michigan 48109, United States
| | - Matthias Zeller
- H. C. Brown Laboratory, Department of Chemistry, Purdue University, West Lafayette, Indiana 47907, United States
| | - Nathaniel K Szymczak
- Department of Chemistry, University of Michigan, 930 North University Avenue, Ann Arbor, Michigan 48109, United States
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13
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Ghosh B, Fantuzzi F, Phukan AK. Understanding, Modulating, and Leveraging Transannular M → Z Interactions. Inorg Chem 2021; 60:12790-12800. [PMID: 34424687 DOI: 10.1021/acs.inorgchem.1c00977] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Density functional theory calculations have been performed on metallatranes featuring a group 13 elements at the bridgehead position to understand the factors that influence the nature of the M···Z (M = Fe, Co, Ni; Z = Al, Ga, In) interaction present in these complexes and the resultant reactivity at the metal center. The strength of the M···Z interaction increases with the increase in the size and polarizability of the bridgehead group 13 elements. The calculated reaction free energies (ΔG° values) for binding of different Lewis bases to the metallatranes are found to be significantly more exergonic for the larger In(III) ions. Quantum theory of atoms in molecules calculations reveal the covalent nature of the M···Z interactions, while the EDA-NOCV analysis indicates the strong binding ability of these metallatranes not only to different σ-donor and π-acceptor ligands but also to relatively inert species, such as N2.
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Affiliation(s)
- Bijoy Ghosh
- Department of Chemical Sciences, Tezpur University, Napaam 784028, Assam, India
| | - Felipe Fantuzzi
- Institute for Inorganic Chemistry, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074 Würzburg, Germany.,Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
| | - Ashwini K Phukan
- Department of Chemical Sciences, Tezpur University, Napaam 784028, Assam, India
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14
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Theulier CA, García-Rodeja Y, Mallet-Ladeira S, Miqueu K, Bouhadir G, Bourissou D. Gold-to-Boron Aryl Transfer from a T-Shaped Phosphine–Borane Gold(I) Complex. Organometallics 2021. [DOI: 10.1021/acs.organomet.1c00364] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Cyril A. Theulier
- Laboratoire Hétérochimie Fondamentale et Appliquée (LHFA, UMR 5069), CNRS, Université Paul Sabatier, 118 Route de Narbonne, 31062 Toulouse Cedex 09, France
| | - Yago García-Rodeja
- CNRS/Université de Pau et des Pays de l’Adour, E2S-UPPA, Institut des Sciences Analytiques et de Physico-Chimie pour l’Environnement et les Matériaux - IPREM UMR 5254, Hélioparc, 2 Avenue du Président Angot, 64053 Pau Cedex 09, France
| | - Sonia Mallet-Ladeira
- Institut de Chimie de Toulouse (UAR 2599), 118 Route de Narbonne, 31062 Toulouse Cedex 09, France
| | - Karinne Miqueu
- CNRS/Université de Pau et des Pays de l’Adour, E2S-UPPA, Institut des Sciences Analytiques et de Physico-Chimie pour l’Environnement et les Matériaux - IPREM UMR 5254, Hélioparc, 2 Avenue du Président Angot, 64053 Pau Cedex 09, France
| | - Ghenwa Bouhadir
- Laboratoire Hétérochimie Fondamentale et Appliquée (LHFA, UMR 5069), CNRS, Université Paul Sabatier, 118 Route de Narbonne, 31062 Toulouse Cedex 09, France
| | - Didier Bourissou
- Laboratoire Hétérochimie Fondamentale et Appliquée (LHFA, UMR 5069), CNRS, Université Paul Sabatier, 118 Route de Narbonne, 31062 Toulouse Cedex 09, France
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15
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Franchino A, Montesinos-Magraner M, Echavarren AM. Silver-Free Catalysis with Gold(I) Chloride Complexes. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2021. [DOI: 10.1246/bcsj.20200358] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Allegra Franchino
- Institute of Chemical Research of Catalonia (ICIQ), Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007 Tarragona, Spain
| | - Marc Montesinos-Magraner
- Institute of Chemical Research of Catalonia (ICIQ), Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007 Tarragona, Spain
| | - Antonio M. Echavarren
- Institute of Chemical Research of Catalonia (ICIQ), Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007 Tarragona, Spain
- Departament de Química Analítica i Química Orgànica, Universitat Rovira i Virgili, C/Marcel·lí Domingo s/n, 43007 Tarragona, Spain
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16
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Fajardo J, Peters JC. Tripodal P 3XFe-N 2 Complexes (X = B, Al, Ga): Effect of the Apical Atom on Bonding, Electronic Structure, and Catalytic N 2-to-NH 3 Conversion. Inorg Chem 2021; 60:1220-1227. [PMID: 33410667 PMCID: PMC8279418 DOI: 10.1021/acs.inorgchem.0c03354] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Terminal dinitrogen complexes of iron ligated by tripodal, tetradentate P3X ligands (X = B, C, Si) have previously been shown to mediate catalytic N2-to-NH3 conversion (N2RR) with external proton and electron sources. From this set of compounds, the tris(phosphino)borane (P3B) system is most active under all conditions canvassed thus far. To further probe the effects of the apical Lewis acidic atom on structure, bonding, and N2RR activity, Fe-N2 complexes supported by analogous group 13 tris(phosphino)alane (P3Al) and tris(phosphino)gallane (P3Ga) ligands are synthesized. The series of P3XFe-N2[0/1-] compounds (X = B, Al, Ga) possess similar electronic structures, degrees of N2 activation, and geometric flexibility as determined from spectroscopic, structural, electrochemical, and computational (DFT) studies. However, treatment of [Na(12-crown-4)2][P3XFe-N2] (X = Al, Ga) with excess acid/reductant in the form of HBArF4/KC8 generates only 2.5 ± 0.1 and 2.7 ± 0.2 equiv of NH3 per Fe, respectively. Similarly, the use of [H2NPh2][OTf]/Cp*2Co leads to the production of 4.1 ± 0.9 (X = Al) and 3.6 ± 0.3 (X = Ga) equiv of NH3. Preliminary reactivity studies confirming P3XFe framework stability under pseudocatalytic conditions suggest that a greater selectivity for hydrogen evolution versus N2RR may be responsible for the attenuated yields of NH3 observed for P3AlFe and P3GaFe relative to P3BFe.
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Affiliation(s)
- Javier Fajardo
- Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
| | - Jonas C Peters
- Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
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17
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Theulier CA, García-Rodeja Y, Saffon-Merceron N, Miqueu K, Bouhadir G, Bourissou D. 1,1-Phosphaboration of C[triple bond, length as m-dash]C and C[double bond, length as m-dash]C bonds at gold. Chem Commun (Camb) 2021; 57:347-350. [PMID: 33319216 DOI: 10.1039/d0cc06978g] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The phosphine-borane iPr2P(o-C6H4)BFXyl2 (Fxyl = 3,5-(F3C)2C6H3) was found to react with gold(i) alkynyl and vinyl complexes via an original 1,1-phosphaboration process. Zwitterionic complexes resulting from Au to B transmetallation have been authenticated as key intermediates. X-ray diffraction analyses show that the alkynyl-borate moiety remains pendant while the vinyl-borate is side-on coordinated to gold. According to DFT calculations, the phosphaboration then proceeds in a trans stepwise manner via decoordination of the phosphine, followed by anti nucleophilic attack to the π-CC bond activated by gold. The boron center acts as a relay and tether for the organic group.
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Affiliation(s)
- Cyril A Theulier
- CNRS/Université Paul Sabatier, Laboratoire Hétérochimie Fondamentale et Appliquée (LHFA, UMR 5069), 118 Route de Narbonne, 31062 Toulouse Cedex 09, France.
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18
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Dombrowski JP, Ziegler MS, Phadke NM, Mansoor E, Levine DS, Witzke RJ, Head-Gordon M, Bell AT, Tilley TD. Siloxyaluminate and Siloxygallate Complexes as Models for Framework and Partially Hydrolyzed Framework Sites in Zeolites and Zeotypes. Chemistry 2021; 27:307-315. [PMID: 32926472 DOI: 10.1002/chem.202002926] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Revised: 09/02/2020] [Indexed: 11/07/2022]
Abstract
Anionic molecular models for nonhydrolyzed and partially hydrolyzed aluminum and gallium framework sites on silica, M[OSi(OtBu)3 ]4 - and HOM[OSi(OtBu)3 ]3 - (where M=Al or Ga), were synthesized from anionic chlorides Li{M[OSi(OtBu)3 ]3 Cl} in salt metathesis reactions. Sequestration of lithium cations with [12]crown-4 afforded charge-separated ion pairs composed of monomeric anions M[OSi(OtBu)3 ]4 - with outer-sphere [([12]crown-4)2 Li]+ cations, and hydroxides {HOM[OSi(OtBu)3 ]3 } with pendant [([12]crown-4)Li]+ cations. These molecular models were characterized by single-crystal X-ray diffraction, vibrational spectroscopy, mass spectrometry and NMR spectroscopy. Upon treatment of monomeric [([12]crown-4)Li]{HOM[OSi(OtBu)3 ]3 } complexes with benzyl alcohol, benzyloxide complexes were formed, modeling a possible pathway for the formation of active sites for Meerwin-Ponndorf-Verley (MPV) transfer hydrogenations with Al/Ga-doped silica catalysts.
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Affiliation(s)
- James P Dombrowski
- Department of Chemistry, University of California, Berkeley, Berkeley, CA, 94720, USA.,Chemical Sciences Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA, 94720, USA
| | - Micah S Ziegler
- Department of Chemistry, University of California, Berkeley, Berkeley, CA, 94720, USA.,Chemical Sciences Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA, 94720, USA
| | - Neelay M Phadke
- Department of Chemical and Biomolecular Engineering, University of California, Berkeley, Berkeley, CA, 94720, USA
| | - Erum Mansoor
- Department of Chemical and Biomolecular Engineering, University of California, Berkeley, Berkeley, CA, 94720, USA.,Kenneth S. Pitzer Center for Theoretical Chemistry, Department of Chemistry, University of California, Berkeley, Berkeley, CA, 94720, USA
| | - Daniel S Levine
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA, 94720, USA.,Kenneth S. Pitzer Center for Theoretical Chemistry, Department of Chemistry, University of California, Berkeley, Berkeley, CA, 94720, USA
| | - Ryan J Witzke
- Department of Chemistry, University of California, Berkeley, Berkeley, CA, 94720, USA.,Chemical Sciences Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA, 94720, USA
| | - Martin Head-Gordon
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA, 94720, USA.,Kenneth S. Pitzer Center for Theoretical Chemistry, Department of Chemistry, University of California, Berkeley, Berkeley, CA, 94720, USA
| | - Alexis T Bell
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA, 94720, USA.,Department of Chemical and Biomolecular Engineering, University of California, Berkeley, Berkeley, CA, 94720, USA
| | - T Don Tilley
- Department of Chemistry, University of California, Berkeley, Berkeley, CA, 94720, USA.,Chemical Sciences Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA, 94720, USA
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19
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Susukida K, Lugo-Fuentes LI, Matsumae S, Nakanishi K, Nakamoto M, Yamamoto Y, Shang R, Barroso-Flores J, Jimenez-Halla JOC. A Digallane Gold Complex with a 12-Electron Auride Center: Synthesis and Computational Studies. Organometallics 2020. [DOI: 10.1021/acs.organomet.0c00557] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Kohei Susukida
- Department of Chemistry, Graduate School of Advanced Engineering and Science, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima 739-8526, Japan
| | - Leonardo I. Lugo-Fuentes
- Department of Chemistry, Division of Natural and Exact Sciences, University of Guanajuato, campus Gto, Noria Alta s/n, 36050 Guanajuato, Mexico
| | - Shozo Matsumae
- Department of Chemistry, Graduate School of Advanced Engineering and Science, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima 739-8526, Japan
| | - Kazuki Nakanishi
- Department of Chemistry, Graduate School of Advanced Engineering and Science, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima 739-8526, Japan
| | - Masaaki Nakamoto
- Department of Chemistry, Graduate School of Advanced Engineering and Science, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima 739-8526, Japan
| | - Yohsuke Yamamoto
- Department of Chemistry, Graduate School of Advanced Engineering and Science, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima 739-8526, Japan
| | - Rong Shang
- Department of Chemistry, Graduate School of Advanced Engineering and Science, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima 739-8526, Japan
| | - Joaquín Barroso-Flores
- Centro Conjunto de Investigación en Química Sustentable UAEM-UNAM, Unidad San Cayetano, Carretera Toluca-Atlacomulco Km. 14.5, 50200 Toluca de Lerdo, México
- Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior, Ciudad Universitaria, Ciudad de México 04510, México
| | - J. Oscar C. Jimenez-Halla
- Department of Chemistry, Division of Natural and Exact Sciences, University of Guanajuato, campus Gto, Noria Alta s/n, 36050 Guanajuato, Mexico
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20
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Affiliation(s)
- Matthias Vogt
- Institute of Chemistry Faculty of Natural Science II Martin Luther University Halle‐Wittenberg Kurt‐Mothes‐Str. 2 06120 Halle (Saale) Germany
| | - Robert Langer
- Institute of Chemistry Faculty of Natural Science II Martin Luther University Halle‐Wittenberg Kurt‐Mothes‐Str. 2 06120 Halle (Saale) Germany
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21
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Uebing M, Hepp A, Uhl W. MCl 2 Molecules (M = Zn, Cd, Hg) Coordinated by Trifunctional E/P 2-Based FLPs (E = Ga, In): Chelating Coordination of the Metal Atoms and Activation of M–Cl Bonds by E–Cl Interactions. Organometallics 2020. [DOI: 10.1021/acs.organomet.0c00300] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Marten Uebing
- Institut für Anorganische und Analytische Chemie der Universität Münster, Corrensstraße 30, D-48149 Münster, Germany
| | - Alexander Hepp
- Institut für Anorganische und Analytische Chemie der Universität Münster, Corrensstraße 30, D-48149 Münster, Germany
| | - Werner Uhl
- Institut für Anorganische und Analytische Chemie der Universität Münster, Corrensstraße 30, D-48149 Münster, Germany
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22
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Cabrera-Trujillo JJ, Fernández I. Understanding the role of frustrated Lewis pairs as ligands in transition metal-catalyzed reactions. Dalton Trans 2020; 49:3129-3137. [PMID: 32073063 DOI: 10.1039/c9dt04806e] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The role of frustrated Lewis pairs (FLPs) as ligands in gold(i) catalyzed-reactions has been computationally investigated by using state-of-the-art density functional theory calculations. To this end, the nature of (P,B)-FLP-transition metal interactions in different gold(i)-complexes has been first explored in detail with the help of the energy decomposition analysis method, which allowed us to accurately quantify the so far poorly understood AuB interactions present in these species. The impact of such interactions on the catalytic activity of gold(i)-complexes has been then evaluated by performing the Au(i)-catalyzed hydroarylation reaction of phenylacetylene with mesitylene. With the help of the activation strain model of reactivity, the factors governing the higher activity of Au(i)-complexes having a FLP as a ligand as compared to that of the parent PPh3 system have also been quantitatively identified.
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Affiliation(s)
- Jorge Juan Cabrera-Trujillo
- Departamento de Química Orgánica I and Centro de Innovación en Química Avanzada (ORFEO-CINQA), Facultad de Ciencias Químicas, Universidad Complutense de Madrid, 28040 Madrid, Spain.
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23
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Frogley BJ, Hill AF, Sharma M, Sinha A, Ward JS. Semi-bridging σ-silyls as Z-type ligands. Chem Commun (Camb) 2020; 56:3532-3535. [DOI: 10.1039/c9cc07763d] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The reactions of SiHPh(NCH2PPh2)2C6H4-1,2 with zerovalent group 10 reagents afford the homoleptic bimetallic complexes [M2{μ-κ3-Si,P,P′-SiPh(CH2PPh2)2C6H4}2] (M = Ni, Pd, Pt) in which the M–M bond is unsymmetrically bridged by two σ-silyl groups.
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Affiliation(s)
| | - Anthony F. Hill
- Research School of Chemistry
- Australian National University
- Canberra
- Australia
| | - Manab Sharma
- Research School of Chemistry
- Australian National University
- Canberra
- Australia
| | - Arup Sinha
- Research School of Chemistry
- Australian National University
- Canberra
- Australia
| | - Jas S. Ward
- Research School of Chemistry
- Australian National University
- Canberra
- Australia
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24
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Abstract
A PAlP pincer ligand derived from 2-diphenylphosphino-6-isopropylphenol was synthesized. The Lewis acidity of the Al center of the ligand was evaluated with coordination of (O)PEt3. A zwitterionic rhodium-aluminum heterobimetallic complex bearing the PAlP ligand was synthesized through its complexation with [RhCl(nbd)]2. Moreover, reduction of the zwitterionic rhodium-aluminum complex with KC8 afforded heterobimetallic complexes bearing an X-type PAlP pincer ligand.
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25
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Takaya J, Hoshino M, Ueki K, Saito N, Iwasawa N. Synthesis, structure, and reactivity of pincer-type iridium complexes having gallyl- and indyl-metalloligands utilizing 2,5-bis(6-phosphino-2-pyridyl)pyrrolide as a new scaffold for metal-metal bonds. Dalton Trans 2019; 48:14606-14610. [PMID: 31549112 DOI: 10.1039/c9dt03443a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
The synthesis and structural analyses of pincer-type iridium complexes having gallyl- and indyl-metalloligands were achieved utilizing 2,5-bis(6-phosphino-2-pyridyl)pyrrolide as a new scaffold for metal-metal bonds. A BH3-coordinated PInP-Ir dihydride complex was also developed as an equivalent to an iridium dihydride complex, which could be a useful catalyst for synthetic reactions.
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Affiliation(s)
- Jun Takaya
- Department of Chemistry, Tokyo Institute of Technology, O-okayama, Meguro-ku, Tokyo 152-8551, Japan.
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26
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27
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Saito N, Takaya J, Iwasawa N. Stabilized Gallylene in a Pincer‐Type Ligand: Synthesis, Structure, and Reactivity of PGa
I
P‐Ir Complexes. Angew Chem Int Ed Engl 2019; 58:9998-10002. [DOI: 10.1002/anie.201904968] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2019] [Indexed: 11/11/2022]
Affiliation(s)
- Narumasa Saito
- Department of ChemistryTokyo Institute of Technology O-okayama, Meguro-ku Tokyo 152-8551 Japan
| | - Jun Takaya
- Department of ChemistryTokyo Institute of Technology O-okayama, Meguro-ku Tokyo 152-8551 Japan
- JSTPRESTO Honcho Kawaguchi Saitama 332-0012 Japan
| | - Nobuharu Iwasawa
- Department of ChemistryTokyo Institute of Technology O-okayama, Meguro-ku Tokyo 152-8551 Japan
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28
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Pleschka D, Uebing M, Lange M, Hepp A, Wübker AL, Hansen MR, Würthwein EU, Uhl W. Al/P- and Ga/P-Based Frustrated Lewis Pairs and Electronically Unsaturated Substrates: Ring Cleavage and Ring Closure, C-C and C-N Bond Formation. Chemistry 2019; 25:9315-9325. [PMID: 31081975 DOI: 10.1002/chem.201901659] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2019] [Indexed: 12/20/2022]
Abstract
Al/P- and Ga/P-based frustrated Lewis pairs (FLPs) reacted with an azirine under mild conditions under cleavage of the heterocycle on two different positions. Opening of the C-C bond yielded an unusual nitrile-ylide adduct in which a C-N moiety coordinated to the FLP backbone. Cleavage of a C-N bond afforded the thermodynamically favored enamine adduct with the N atom bound to P and Al or Ga atoms. Ring closure was observed upon treatment of an Al/P FLP with electronically unsaturated substrates (4-(1-cyclohexenyl)-1-aza-but-1-en-3-ynes) and yielded by C-N bond formation hexahydroquinoline derivatives, which coordinated to the FLP through P-C and Al-C bonds. Diphenylcyclopropenone showed a diverse reactivity, which depending on steric shielding and the polarizing effect of Al or Ga atoms afforded different products. An AltBu2 /P FLP yielded an adduct with the C=O group coordinated to P and Al. The dineopentyl derivative gave an equilibrium mixture consisting of a similar product and a simple adduct with O bound to Al and a three-coordinate P atom. Both compounds co-crystallize. The Ga/P FLP only formed the simple adduct with the same substrate. Rearrangement resulted in all cases in C3 -ring cleavage and migration of a mesityl group from P to a former ring C atom by C-C bond formation. Diphenylthiocyclopropenone (evidence for the presence of P=C bonds) and an imine derivative afforded similar products.
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Affiliation(s)
- Damian Pleschka
- Institut für Anorganische und Analytische Chemie, Westfälische Wilhelms-Universität Münster, Corrensstrasse 30, 48149, Münster, Germany
| | - Marten Uebing
- Institut für Anorganische und Analytische Chemie, Westfälische Wilhelms-Universität Münster, Corrensstrasse 30, 48149, Münster, Germany
| | - Merten Lange
- Institut für Anorganische und Analytische Chemie, Westfälische Wilhelms-Universität Münster, Corrensstrasse 30, 48149, Münster, Germany
| | - Alexander Hepp
- Institut für Anorganische und Analytische Chemie, Westfälische Wilhelms-Universität Münster, Corrensstrasse 30, 48149, Münster, Germany
| | - Anna-Lena Wübker
- Institut für Physikalische Chemie, Westfälische Wilhelms-Universität Münster, Corrensstrasse 30, 48149, Münster, Germany
| | - Michael Ryan Hansen
- Institut für Physikalische Chemie, Westfälische Wilhelms-Universität Münster, Corrensstrasse 30, 48149, Münster, Germany
| | - Ernst-Ulrich Würthwein
- Organisch-Chemisches Institut and Center for Multiscale Theory, and Computation (CMTC), Westfälische Wilhelms-Universität Münster, Corrensstrasse 40, 48149, Münster, Germany
| | - Werner Uhl
- Institut für Anorganische und Analytische Chemie, Westfälische Wilhelms-Universität Münster, Corrensstrasse 30, 48149, Münster, Germany
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29
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Saito N, Takaya J, Iwasawa N. Stabilized Gallylene in a Pincer‐Type Ligand: Synthesis, Structure, and Reactivity of PGa
I
P‐Ir Complexes. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201904968] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Narumasa Saito
- Department of ChemistryTokyo Institute of Technology O-okayama, Meguro-ku Tokyo 152-8551 Japan
| | - Jun Takaya
- Department of ChemistryTokyo Institute of Technology O-okayama, Meguro-ku Tokyo 152-8551 Japan
- JSTPRESTO Honcho Kawaguchi Saitama 332-0012 Japan
| | - Nobuharu Iwasawa
- Department of ChemistryTokyo Institute of Technology O-okayama, Meguro-ku Tokyo 152-8551 Japan
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30
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Ueno A, Watanabe K, Daniliuc CG, Kehr G, Erker G. Unsaturated vicinal frustrated phosphane/borane Lewis pairs as ligands in gold(i) chemistry. Chem Commun (Camb) 2019; 55:4367-4370. [PMID: 30912538 DOI: 10.1039/c9cc01136f] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The P/B FLP 6, formed by the 1,1-hydroboration of dimesitylphosphino(trimethylsilyl)acetylene with HB(C6F5)2 forms the Au(i)X complexes 9a (X: Cl) and 10a (X: NTf2), respectively. Both show marked AuB interactions. The P/B FLP isomer 8, featuring the bulky SiMe3 substituent at the carbon adjacent to boron forms gold complexes 9b and 10b, both of which show weaker AuB interactions. Complex 10a was employed in the catalytic hydroamination of a series of alkynes with p-toluidine. Complexes 9 and 10 were characterized by X-ray diffraction.
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Affiliation(s)
- Atsushi Ueno
- Organisch-Chemisches Institut der Universität Münster, Corrensstraße 40, 48149 Münster, Germany.
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31
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Uhl W, Lange M, Hepp A, Layh M. Supramolecular Chemistry Based on Frustrated Lewis Pairs - Reactions of an Al/P FLP with Potassium Formate and Cesium Fluoride. Z Anorg Allg Chem 2018. [DOI: 10.1002/zaac.201800256] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Werner Uhl
- Institut für Anorganische und Analytische Chemie; Universität Münster; Corrensstraße 30 48149 Münster Germany
| | - Merten Lange
- Institut für Anorganische und Analytische Chemie; Universität Münster; Corrensstraße 30 48149 Münster Germany
| | - Alexander Hepp
- Institut für Anorganische und Analytische Chemie; Universität Münster; Corrensstraße 30 48149 Münster Germany
| | - Marcus Layh
- Institut für Anorganische und Analytische Chemie; Universität Münster; Corrensstraße 30 48149 Münster Germany
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32
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Bennett MA, Bhargava SK, Mirzadeh N, Privér SH. The use of [2-C 6 R 4 PPh 2 ] − (R = H, F) and related carbanions as building blocks in coordination chemistry. Coord Chem Rev 2018. [DOI: 10.1016/j.ccr.2018.05.008] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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33
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Tagne Kuate AC, Lalancette RA, Bannenberg T, Jäkle F. Diferrocenylmercury‐Bridged Diphosphine: A Chiral, Ambiphilic, and Redox‐Active Bidentate Ligand. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201803086] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Alain C. Tagne Kuate
- Department of Chemistry Rutgers University—Newark 73 Warren Street Newark NJ 07102 USA
- Department of Chemistry Faculty of Science University of Dschang P.O. Box 67 Dschang Cameroon
| | - Roger A. Lalancette
- Department of Chemistry Rutgers University—Newark 73 Warren Street Newark NJ 07102 USA
| | - Thomas Bannenberg
- Institut für Anorganische und Analytische Chemie Technische Universität Braunschweig Hagenring 30 38106 Braunschweig Germany
| | - Frieder Jäkle
- Department of Chemistry Rutgers University—Newark 73 Warren Street Newark NJ 07102 USA
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34
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Boom DA, Ehlers AW, Nieger M, Devillard M, Bouhadir G, Bourissou D, Slootweg JC. Gold(I) Complexes of the Geminal Phosphinoborane tBu 2PCH 2BPh 2. ACS OMEGA 2018; 3:3945-3951. [PMID: 29732451 PMCID: PMC5928493 DOI: 10.1021/acsomega.8b00143] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2018] [Accepted: 02/21/2018] [Indexed: 05/21/2023]
Abstract
In this work, we explored the coordination properties of the geminal phosphinoborane tBu2PCH2BPh2 (2) toward different gold(I) precursors. The reaction of 2 with an equimolar amount of the sulfur-based complex (Me2S)AuCl resulted in displacement of the SMe2 ligand and formation of linear phosphine gold(I) chloride 3. Using an excess of ligand 2, bisligated complex 4 was formed and showed dynamic behavior at room temperature. Changing the gold(I) metal precursor to the phosphorus-based complex, (Ph3P)AuCl impacted the coordination behavior of ligand 2. Namely, the reaction of ligand 2 with (Ph3P)AuCl led to the heterolytic cleavage of the gold-chloride bond, which is favored over PPh3 ligand displacement. To the best of our knowledge, 2 is the first example of a P/B-ambiphilic ligand capable of cleaving the gold-chloride bond. The coordination chemistry of 2 was further analyzed by density functional theory calculations.
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Affiliation(s)
- Devin
H. A. Boom
- Van
’t Hoff Institute for Molecular Sciences, University of Amsterdam, Science Park 904, P.O. Box 94157, 1090
GD Amsterdam, The Netherlands
| | - Andreas W. Ehlers
- Van
’t Hoff Institute for Molecular Sciences, University of Amsterdam, Science Park 904, P.O. Box 94157, 1090
GD Amsterdam, The Netherlands
- Department
of Chemistry, University of Johannesburg, Auckland Park, Johannesburg 2006, South Africa
| | - Martin Nieger
- Department
of Chemistry, University of Helsinki, P.O. Box 55, 00014 Helsinki, Finland
| | - Marc Devillard
- CNRS,
Université Paul Sabatier, Laboratoire Hétérochimie
Fondamentale et Appliquée (LHFA, UMR 5069), 118 Route de Narbonne, 31062 Toulouse Cedex 09, France
| | - Ghenwa Bouhadir
- CNRS,
Université Paul Sabatier, Laboratoire Hétérochimie
Fondamentale et Appliquée (LHFA, UMR 5069), 118 Route de Narbonne, 31062 Toulouse Cedex 09, France
| | - Didier Bourissou
- CNRS,
Université Paul Sabatier, Laboratoire Hétérochimie
Fondamentale et Appliquée (LHFA, UMR 5069), 118 Route de Narbonne, 31062 Toulouse Cedex 09, France
| | - J. Chris Slootweg
- Van
’t Hoff Institute for Molecular Sciences, University of Amsterdam, Science Park 904, P.O. Box 94157, 1090
GD Amsterdam, The Netherlands
- E-mail: (J.C.S.)
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35
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Tagne Kuate AC, Lalancette RA, Bannenberg T, Jäkle F. Diferrocenylmercury‐Bridged Diphosphine: A Chiral, Ambiphilic, and Redox‐Active Bidentate Ligand. Angew Chem Int Ed Engl 2018; 57:6552-6557. [DOI: 10.1002/anie.201803086] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2018] [Indexed: 11/05/2022]
Affiliation(s)
- Alain C. Tagne Kuate
- Department of Chemistry Rutgers University—Newark 73 Warren Street Newark NJ 07102 USA
- Department of Chemistry Faculty of Science University of Dschang P.O. Box 67 Dschang Cameroon
| | - Roger A. Lalancette
- Department of Chemistry Rutgers University—Newark 73 Warren Street Newark NJ 07102 USA
| | - Thomas Bannenberg
- Institut für Anorganische und Analytische Chemie Technische Universität Braunschweig Hagenring 30 38106 Braunschweig Germany
| | - Frieder Jäkle
- Department of Chemistry Rutgers University—Newark 73 Warren Street Newark NJ 07102 USA
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36
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Shang R, Saito S, Jimenez-Halla JOC, Yamamoto Y. Facile reactions of gold(i) complexes with tri(tert-butyl)azadiboriridine. Dalton Trans 2018; 47:5181-5188. [PMID: 29589620 DOI: 10.1039/c8dt00697k] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Direct structural evidence for group 11 metal-mediated B-B bond activation was obtained from reactions of tri(tert-butyl)azadiboriridine (1) with AuCl(L) complexes. The AuCl(SMe2) reaction afforded [η2-B,B-B(tBu)N(tBu)B(tBu)]AuCl (2) by ligand displacement. More donating phosphines as co-ligands led to B-B bond cleavage accompanied by either halide or L migration to form boron-gold complexes 3 (L = PPh3) and 4 (L = PMe3). A similar product 5, which is isostructural to 4, was obtained by the addition of dimethylaminopyridine (DMAP) to 2-4. Complexes 2-5 constitute rare examples of metal complexes bearing two Lewis acidic centres. The effect of the boryl ligand was demonstrated in the formation of a gold(i) complex 6 bearing a 5-membered heterocycle from 3 and tert-butylisonitrile. Plausible reaction mechanisms that led to these complexes and their bonding situation were explored computationally at the DFT level.
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Affiliation(s)
- Rong Shang
- Department of the Chemistry, Graduate School of Science, Hiroshima University, 1-3-1 Kagamiyama, 7398526 Higashi-Hiroshima, Japan.
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37
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Possart J, Uhl W. Influence of the Lewis Acidity of Gallium Atoms on the Reactivity of a Frustrated Lewis Pair: Experimental and Theoretical Studies. Organometallics 2018. [DOI: 10.1021/acs.organomet.8b00075] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Josephine Possart
- Institut für Anorganische und Analytische Chemie der Universität Münster, Corrensstraße 30, D-48149 Münster, Germany
| | - Werner Uhl
- Institut für Anorganische und Analytische Chemie der Universität Münster, Corrensstraße 30, D-48149 Münster, Germany
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38
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Thomas CM, Hatzis GP, Pepi MJ. Examining the effects of variations in ligand framework and pnictogen substitution on the geometry and electronic structure of metal complexes of N-heterocyclic phosphido ligands incorporated into a diphosphine pincer ligand framework. Polyhedron 2018. [DOI: 10.1016/j.poly.2017.11.015] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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39
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Hoy R, Lönnecke P, Hey-Hawkins E. Selective formation of a two-dimensional coordination polymer based on a tridentate phospholane ligand and gold(i). Dalton Trans 2018; 47:14515-14520. [DOI: 10.1039/c8dt03630f] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The tridentate phosphine ligand 1,3,5-tris[(E)-(4-phospho-lano-2,6-diethyl)styryl]benzene reacts with [AuCl(tht)] independent of the stoichiometry employed with selective formation of a 2D coordination polymer (ratio 1 : 1) with gold(i) in a trigonal-planar [3 + 1] coordination geometry.
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Affiliation(s)
- Reinhard Hoy
- Faculty of Chemistry and Mineralogy
- Institute of Inorganic Chemistry
- Leipzig University
- D-04103 Leipzig
- Germany
| | - Peter Lönnecke
- Faculty of Chemistry and Mineralogy
- Institute of Inorganic Chemistry
- Leipzig University
- D-04103 Leipzig
- Germany
| | - Evamarie Hey-Hawkins
- Faculty of Chemistry and Mineralogy
- Institute of Inorganic Chemistry
- Leipzig University
- D-04103 Leipzig
- Germany
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40
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Takaya J, Iwasawa N. Synthesis, Structure, and Catalysis of Palladium Complexes Bearing a Group 13 Metalloligand: Remarkable Effect of an Aluminum-Metalloligand in Hydrosilylation of CO2. J Am Chem Soc 2017; 139:6074-6077. [DOI: 10.1021/jacs.7b02553] [Citation(s) in RCA: 130] [Impact Index Per Article: 18.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Jun Takaya
- Department of Chemistry,
School of Science, Tokyo Institute of Technology, O-okayama, Meguro-ku, Tokyo 152-8551, Japan
| | - Nobuharu Iwasawa
- Department of Chemistry,
School of Science, Tokyo Institute of Technology, O-okayama, Meguro-ku, Tokyo 152-8551, Japan
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41
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Lin TP, Gabbaï FP. Bis- and tris-phosphinostannane gold complexes featuring Au → Sn dative interactions: Synthesis, structures, and DFT calculations. Polyhedron 2017. [DOI: 10.1016/j.poly.2016.07.010] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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42
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Backs J, Lange M, Possart J, Wollschläger A, Mück-Lichtenfeld C, Uhl W. Einfache Modulierung von FLP-Eigenschaften: ein Phosphanylvinyl-Grignard-Reagenz und Ga/P- oder In/P2
-basierte frustrierte Lewis-Paare. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201612485] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Jana Backs
- Institut für Anorganische und Analytische Chemie der; Westfälischen Wilhelms-Universität Münster; Corrensstraße 30 48149 Münster Deutschland
| | - Merten Lange
- Institut für Anorganische und Analytische Chemie der; Westfälischen Wilhelms-Universität Münster; Corrensstraße 30 48149 Münster Deutschland
| | - Josephine Possart
- Institut für Anorganische und Analytische Chemie der; Westfälischen Wilhelms-Universität Münster; Corrensstraße 30 48149 Münster Deutschland
| | - Agnes Wollschläger
- Institut für Anorganische und Analytische Chemie der; Westfälischen Wilhelms-Universität Münster; Corrensstraße 30 48149 Münster Deutschland
| | - Christian Mück-Lichtenfeld
- Organisch-Chemisches Institut der; Westfälischen Wilhelms-Universität Münster und Center of Multiscale Theory and Computation; Corrensstraße 40 48149 Münster Deutschland
| | - Werner Uhl
- Institut für Anorganische und Analytische Chemie der; Westfälischen Wilhelms-Universität Münster; Corrensstraße 30 48149 Münster Deutschland
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43
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Backs J, Lange M, Possart J, Wollschläger A, Mück-Lichtenfeld C, Uhl W. Facile Modulation of FLP Properties: A Phosphinylvinyl Grignard Reagent and Ga/P- and In/P 2 -Based Frustrated Lewis Pairs. Angew Chem Int Ed Engl 2017; 56:3094-3097. [PMID: 28156031 DOI: 10.1002/anie.201612485] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2016] [Indexed: 12/27/2022]
Abstract
An Al/P-based frustrated Lewis pair (FLP) reacted with PhMgCl by an unexpected transmetalation and formation of a phosphinylvinyl Grignard reagent. This compound is well suited for the transfer of the basic FLP component to other Lewis acidic metal atoms and allowed the generation of a Ga/P and an In/P2 FLP. The Ga FLP showed a behavior different to that of the corresponding Al FLP, the In FLP allowed the chelating coordination of an Au atom by Au-Cl bond activation.
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Affiliation(s)
- Jana Backs
- Institut für Anorganische und Analytische Chemie der, Westfälischen Wilhelms-Universität Münster, Corrensstrasse 30, 48149, Münster, Germany
| | - Merten Lange
- Institut für Anorganische und Analytische Chemie der, Westfälischen Wilhelms-Universität Münster, Corrensstrasse 30, 48149, Münster, Germany
| | - Josephine Possart
- Institut für Anorganische und Analytische Chemie der, Westfälischen Wilhelms-Universität Münster, Corrensstrasse 30, 48149, Münster, Germany
| | - Agnes Wollschläger
- Institut für Anorganische und Analytische Chemie der, Westfälischen Wilhelms-Universität Münster, Corrensstrasse 30, 48149, Münster, Germany
| | - Christian Mück-Lichtenfeld
- Organisch-Chemisches Institut der, Westfälischen Wilhelms-Universität Münster and Center of Multiscale Theory and Computation, Corrensstrasse 40, 48149, Münster, Germany
| | - Werner Uhl
- Institut für Anorganische und Analytische Chemie der, Westfälischen Wilhelms-Universität Münster, Corrensstrasse 30, 48149, Münster, Germany
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44
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Moore JT, Smith NE, Lu CC. Structure and dynamic NMR behavior of rhodium complexes supported by Lewis acidic group 13 metallatranes. Dalton Trans 2017; 46:5689-5701. [DOI: 10.1039/c6dt04769f] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Z-type complexes featuring Rh → Al and Rh → Ga interactions show distorted Rh centers and fluxionality on the NMR timescale.
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45
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Jones JS, Gabbai FP. Activation of an Au-Cl Bond by a Pendent Sb III Lewis Acid: Impact on Structure and Catalytic Activity. Chemistry 2016; 23:1136-1144. [PMID: 27813226 DOI: 10.1002/chem.201604521] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2016] [Indexed: 11/05/2022]
Abstract
With the objective of identifying new coordination modes of ambiphilic ligands, we have investigated the bidentate Sb/P ligands (o-(Ph2 P)C6 H4 )SbCl2 (LCl ) and (o-(Ph2 P)C6 H4 )SbPh2 (LPh ). Reaction of these ligands with (tht)AuCl affords the monoligated species LCl AuCl (1) and LPh AuCl (2), respectively, in which the antimony centers are only weakly engaged with the coordinated gold atom. Treatment of 1 with PPh3 induces an intramolecular transfer of a chloride ligand from gold to antimony to form the zwitterionic species o-(Cl3 Sb)C6 H4 (Ph2 P)Au(PPh3 ) (3). Natural bond orbital (NBO) calculations show that the antimony and gold centers are involved in weak Sb→Au and Au→Sb interactions, the latter reflecting the Lewis acidity of the pendent antimony group. Finally, we demonstrate that the ability of the antimony center in 1 to abstract a gold-bound chloride in the presence of a Lewis basic substrate may be utilized to activate the gold center for the electrophilic cycloisomerization of propargylic amides.
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Affiliation(s)
- J Stuart Jones
- Department of Chemistry, Texas A&M University, College Station, Texas, 77843, USA
| | - François P Gabbai
- Department of Chemistry, Texas A&M University, College Station, Texas, 77843, USA
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46
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Kleinhans G, Hansmann MM, Guisado-Barrios G, Liles DC, Bertrand G, Bezuidenhout DI. Nucleophilic T-Shaped (LXL)Au(I)-Pincer Complexes: Protonation and Alkylation. J Am Chem Soc 2016; 138:15873-15876. [PMID: 27960301 DOI: 10.1021/jacs.6b11359] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
We report the synthesis and reactivity of unusual T-shaped (LXL)Au(I)-pincer complexes, based on a carbazole framework flanked by two mesoionic carbenes (MICs). In contrast to other Au(I) complexes, these complexes react with electrophiles. Protonation and alkylation occur either at the metal or the ligand, depending on steric factors. Of particular interest, protonation at gold leads to an unprecedented cationic Au(III) hydride, which gives a 1H NMR resonance at δ -8.34 ppm. The reactivity of this "hydride", however, shows protic and not hydridic behavior.
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Affiliation(s)
- George Kleinhans
- Chemistry Department, University of Pretoria , Private Bag X20, Hatfield 0028, Pretoria, South Africa
| | - Max M Hansmann
- UCSD-CNRS Joint Research Laboratory (UMI 3555), Department of Chemistry and Biochemistry, University of California, San Diego , La Jolla, California 92093-0358, United States
| | - Gregorio Guisado-Barrios
- Institute of Advance Materials (INAM), Universitat Jaume I , Avenida Vicente Sos Baynat s/n, 12071 Castellon, Spain
| | - David C Liles
- Chemistry Department, University of Pretoria , Private Bag X20, Hatfield 0028, Pretoria, South Africa
| | - Guy Bertrand
- UCSD-CNRS Joint Research Laboratory (UMI 3555), Department of Chemistry and Biochemistry, University of California, San Diego , La Jolla, California 92093-0358, United States
| | - Daniela I Bezuidenhout
- Chemistry Department, University of Pretoria , Private Bag X20, Hatfield 0028, Pretoria, South Africa.,Molecular Sciences Institute, School of Chemistry, University of the Witwatersrand , Johannesburg 2050, South Africa
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47
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Liu L, Wei J, Chi Y, Zhang WX, Xi Z. Structure and Reaction Chemistry of Magnesium Organocuprates Derived from Magnesiacyclopentadienes and Copper(I) Salts. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201607355] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Liang Liu
- Beijing National Laboratory for Molecular Sciences (BNLMS); Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education; College of Chemistry; Peking University; Beijing 100871 China
| | - Junnian Wei
- Beijing National Laboratory for Molecular Sciences (BNLMS); Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education; College of Chemistry; Peking University; Beijing 100871 China
| | - Yue Chi
- Beijing National Laboratory for Molecular Sciences (BNLMS); Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education; College of Chemistry; Peking University; Beijing 100871 China
| | - Wen-Xiong Zhang
- Beijing National Laboratory for Molecular Sciences (BNLMS); Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education; College of Chemistry; Peking University; Beijing 100871 China
| | - Zhenfeng Xi
- Beijing National Laboratory for Molecular Sciences (BNLMS); Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education; College of Chemistry; Peking University; Beijing 100871 China
- State Key Laboratory of Organometallic Chemistry; Shanghai Institute of Organic Chemistry; Shanghai 200032 China
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48
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Liu L, Wei J, Chi Y, Zhang W, Xi Z. Structure and Reaction Chemistry of Magnesium Organocuprates Derived from Magnesiacyclopentadienes and Copper(I) Salts. Angew Chem Int Ed Engl 2016; 55:14762-14765. [DOI: 10.1002/anie.201607355] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2016] [Indexed: 11/11/2022]
Affiliation(s)
- Liang Liu
- Beijing National Laboratory for Molecular Sciences (BNLMS) Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education College of Chemistry Peking University Beijing 100871 China
| | - Junnian Wei
- Beijing National Laboratory for Molecular Sciences (BNLMS) Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education College of Chemistry Peking University Beijing 100871 China
| | - Yue Chi
- Beijing National Laboratory for Molecular Sciences (BNLMS) Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education College of Chemistry Peking University Beijing 100871 China
| | - Wen‐Xiong Zhang
- Beijing National Laboratory for Molecular Sciences (BNLMS) Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education College of Chemistry Peking University Beijing 100871 China
| | - Zhenfeng Xi
- Beijing National Laboratory for Molecular Sciences (BNLMS) Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education College of Chemistry Peking University Beijing 100871 China
- State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic Chemistry Shanghai 200032 China
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49
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Sen S, Ke IS, Gabbaï FP. Anion-Controlled Positional Switching of a Phenyl Group about the Dinuclear Core of a AuSb Complex. Inorg Chem 2016; 55:9162-72. [PMID: 27583565 DOI: 10.1021/acs.inorgchem.6b01290] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
As part of our continuing interest in redox-active, anion-responsive main-group transition-metal platforms, we have investigated the effect of chloride by fluoride anion substitution on the core structure of a dinuclear AuSb platform. Starting from [(o-(iPr2P)C6H4)2Cl2SbPh]AuCl (2) in which the antimony-bound phenyl group is positioned trans to the gold atom, we found that the introduction of fluoride anions, as in [(o-(iPr2P)C6H4)2F2SbPh]AuCl (3) and [(o-(iPr2P)C6H4)2ClFSbPh]AuCl (4), produces structures in which the phenyl group switches to a perpendicular direction with respect to the gold atom. Replacement of the gold-bound chloride anion in 3 by a fluoride anion can be achieved by successive treatment with TlPF6 and [nBu4N][Ph3SiF2]. These reactions, which proceed via the intermediate zwitterionc gold antimonate complex [o-(iPr2P)C6H4)2F3SbPh]Au (6), trigger migration of the phenyl group to gold and afford [(o-(iPr2P)C6H4)2F3Sb]AuPh (7). Because the phenyl group in 7 is orthogonal to that in 3 and opposite to that in 2, the title AuSb platform can be regarded as a molecular analogue of a mechanical three-way switch in which the switching element is a phenyl group. Finally, while all complexes involved retain a Au → Sb interaction, this interaction is no longer present in the zwitterionic derivative 6 because of the neutralization of the Lewis acidity of the antimony center.
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Affiliation(s)
- Srobona Sen
- Department of Chemistry, Texas A&M University , College Station, Texas 77843-3255, United States
| | - Iou-Sheng Ke
- Department of Chemistry, Texas A&M University , College Station, Texas 77843-3255, United States
| | - François P Gabbaï
- Department of Chemistry, Texas A&M University , College Station, Texas 77843-3255, United States
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50
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Jones JS, Gabbaï FP. Coordination and Redox Non-innocent Behavior of Hybrid Ligands Containing Tellurium. CHEM LETT 2016. [DOI: 10.1246/cl.160103] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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