1
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Tiddens MR, Kappé BT, Smak TJ, Lutz M, Moret ME. Coordination of a Phosphine-Tethered Aminoborane to Group 10 Metals. Chemistry 2024:e202400666. [PMID: 38577933 DOI: 10.1002/chem.202400666] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2024] [Revised: 04/04/2024] [Accepted: 04/05/2024] [Indexed: 04/06/2024]
Abstract
While π-complexes of C=C bonds are ubiquitous in organometallic chemistry, analogous complexes of the isoelectronic but strongly polarized B=N double bond of aminoboranes are extremely scarce. To address this gap, a diphosphine-aminoborane ligand (PhDPBAiPr) is introduced and its coordination with group 10 metals is investigated. The B=N bond does not coordinate to the metal in Pt(0) and Pd(II) complexes. In contrast, side-on coordination of the B=N bond is observed in the Ni(0) complex (PhDPBAiPr)Ni(NCPh), and the X-ray crystal structure reveals B-N bond elongation compared to the free ligand. The choice of co-ligand strongly influences the presence or absence of side-on coordination at Ni(0) as evidenced by NMR spectroscopy. While the B=N π-complex is geometrically similar to C=C analogues, a bonding analysis reveals that the interaction of the B=N motif with the electron-rich Ni(0) center is best described as 3c4e hyperbond, in which Ni and N are competing for the empty orbital on B.
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Affiliation(s)
- Martine R Tiddens
- Organic Chemistry and Catalysis, Faculty of Science, Utrecht University, Institute for Sustainable and Circular Chemistry, Universiteitsweg 99, 3584 CG, Utrecht, The Netherlands
| | - Bram T Kappé
- Organic Chemistry and Catalysis, Faculty of Science, Utrecht University, Institute for Sustainable and Circular Chemistry, Universiteitsweg 99, 3584 CG, Utrecht, The Netherlands
| | - Tom J Smak
- Organic Chemistry and Catalysis, Faculty of Science, Utrecht University, Institute for Sustainable and Circular Chemistry, Universiteitsweg 99, 3584 CG, Utrecht, The Netherlands
| | - Martin Lutz
- Structural Biochemistry, Faculty of Science, Utrecht University, Bijvoet Centre for Biomolecular Research, Universiteitsweg 99, 3584 CG, Utrecht, The Netherlands
| | - Marc-Etienne Moret
- Organic Chemistry and Catalysis, Faculty of Science, Utrecht University, Institute for Sustainable and Circular Chemistry, Universiteitsweg 99, 3584 CG, Utrecht, The Netherlands
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2
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Krämer F, Radius M, Berberich H, Fernández I, Breher F. A neutral, acyclic, borataalkene-like ligand for group 11 metals: L- and Z-type ligands side by side. Chem Commun (Camb) 2022; 58:3905-3908. [PMID: 35237782 DOI: 10.1039/d2cc00199c] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
The overall neutral α-borylated phosphorus ylide Ph3PC(Me)BEt2 behaves like a polar borataalkene and can act as acyclic, ambiphilic π-type ligand with L- and Z-type functionalities side by side. In the complexes [MX{η2-Ph3PC(Me)BEt2}] (M = Cu, (Ag), Au; X = Cl, NTf2), the bonding is dominated by the highly nucleophilic ylidic carbon atom (L-type ligand). The Lewis acidic boron atom furnishes nonetheless a small but significant bonding contribution (Z-type ligand).
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Affiliation(s)
- Felix Krämer
- Institute of Inorganic Chemistry, Karlsruhe Institute of Technology (KIT), Engesserstr. 15, Karlsruhe 76131, Germany.
| | - Michael Radius
- Institute of Inorganic Chemistry, Karlsruhe Institute of Technology (KIT), Engesserstr. 15, Karlsruhe 76131, Germany.
| | - Helga Berberich
- Institute of Inorganic Chemistry, Karlsruhe Institute of Technology (KIT), Engesserstr. 15, Karlsruhe 76131, Germany.
| | - Israel Fernández
- Departamento de Química Orgánica I, Facultad de Ciencias Químicas and Centro de Innovación en Química Avanzada (ORFEO-CINQA), Universidad Complutense de Madrid, Madrid 28040, Spain.
| | - Frank Breher
- Institute of Inorganic Chemistry, Karlsruhe Institute of Technology (KIT), Engesserstr. 15, Karlsruhe 76131, Germany.
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3
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Watanabe K, Ueno A, Tao X, Škoch K, Jie X, Vagin S, Rieger B, Daniliuc CG, Letzel MC, Kehr G, Erker G. Reactions of an anionic chelate phosphane/borata-alkene ligand with [Rh(nbd)Cl] 2, [Rh(CO) 2Cl] 2 and [Ir(cod)Cl] 2. Chem Sci 2020; 11:7349-7355. [PMID: 33209245 PMCID: PMC7654189 DOI: 10.1039/d0sc02223c] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2020] [Accepted: 06/18/2020] [Indexed: 11/21/2022] Open
Abstract
Borata-alkenes can serve as anionic olefin equivalent ligands in transition metal chemistry. A chelate ligand of this type is described and used for metal coordination. Deprotonation of the Mes2P(CH2)2B(C6F5)2 frustrated Lewis pair in the α-CH[B] position gave the methylene-bridged phosphane/borata-alkene anion. It reacted with the [Rh(nbd)Cl] or [Rh(CO)2Cl] dimers to give the respective neutral chelate [P/C[double bond, length as m-dash]B][Rh] complexes. The reaction of the [P/C[double bond, length as m-dash]B]- anion with [Ir(cod)Cl]2 proceeded similarly, only that the complex underwent a subsequent oxidative addition reaction at the mesityl substituent. Both the resulting Ir(iii)hydride complex 15 and the P/borata-alkene Rh system 12 were used as hydrogenation catalysts. The [P/C[double bond, length as m-dash]B(C6F5)2]Rh(nbd) complex 12 served as a catalyst for arylacetylene polymerization.
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Affiliation(s)
- Kohei Watanabe
- Organisch-Chemisches Institut , Westfälische Wilhelms-Universität Münster , Corrensstraße 40 , 48149 Münster , Germany .
| | - Atsushi Ueno
- Organisch-Chemisches Institut , Westfälische Wilhelms-Universität Münster , Corrensstraße 40 , 48149 Münster , Germany .
| | - Xin Tao
- Organisch-Chemisches Institut , Westfälische Wilhelms-Universität Münster , Corrensstraße 40 , 48149 Münster , Germany .
| | - Karel Škoch
- Organisch-Chemisches Institut , Westfälische Wilhelms-Universität Münster , Corrensstraße 40 , 48149 Münster , Germany .
| | - Xiaoming Jie
- Organisch-Chemisches Institut , Westfälische Wilhelms-Universität Münster , Corrensstraße 40 , 48149 Münster , Germany .
| | - Sergei Vagin
- Wacker-Lehrstuhl für Makromolekulare Chemie , Fakultät für Chemie , Technische Universität München , Lichtenbergstraße 4, 85747 Garching bei München , Germany
| | - Bernhard Rieger
- Wacker-Lehrstuhl für Makromolekulare Chemie , Fakultät für Chemie , Technische Universität München , Lichtenbergstraße 4, 85747 Garching bei München , Germany
| | - Constantin G Daniliuc
- Organisch-Chemisches Institut , Westfälische Wilhelms-Universität Münster , Corrensstraße 40 , 48149 Münster , Germany .
| | - Matthias C Letzel
- Organisch-Chemisches Institut , Westfälische Wilhelms-Universität Münster , Corrensstraße 40 , 48149 Münster , Germany .
| | - Gerald Kehr
- Organisch-Chemisches Institut , Westfälische Wilhelms-Universität Münster , Corrensstraße 40 , 48149 Münster , Germany .
| | - Gerhard Erker
- Organisch-Chemisches Institut , Westfälische Wilhelms-Universität Münster , Corrensstraße 40 , 48149 Münster , Germany .
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4
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O'Brien NJ, Kano N, Havare N, Uematsu R, Ramozzi R, Morokuma K. Synthesis, Structure and Reactivities of Pentacoordinated Phosphorus–Boron Bonded Compounds. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.202000229] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Nathan J. O'Brien
- Department of Chemistry Graduate School of Science The University of Tokyo 7‐3‐1 Hongo, Bunkyo‐ku 113‐0033 Tokyo Japan
| | - Naokazu Kano
- Department of Chemistry Graduate School of Science The University of Tokyo 7‐3‐1 Hongo, Bunkyo‐ku 113‐0033 Tokyo Japan
| | - Nizam Havare
- Department of Chemistry Graduate School of Science The University of Tokyo 7‐3‐1 Hongo, Bunkyo‐ku 113‐0033 Tokyo Japan
| | - Ryohei Uematsu
- Fukui Institute for Fundamental Chemistry Kyoto University Takano‐Nishihiraki‐cho 34‐4, Sakyou‐ku 606‐8103 Kyoto Japan
| | - Romain Ramozzi
- Fukui Institute for Fundamental Chemistry Kyoto University Takano‐Nishihiraki‐cho 34‐4, Sakyou‐ku 606‐8103 Kyoto Japan
| | - Keiji Morokuma
- Fukui Institute for Fundamental Chemistry Kyoto University Takano‐Nishihiraki‐cho 34‐4, Sakyou‐ku 606‐8103 Kyoto Japan
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5
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Weinhart MAK, Lisovenko AS, Timoshkin AY, Scheer M. Nur durch eine Lewis‐Base stabilisierte Phosphanylalane und ‐gallane. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201914046] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
| | - Anna S. Lisovenko
- Institut für Chemie Staatliche Universität St. Petersburg Universitetskaya emb. 7/9 199034 St. Petersburg Russland
| | - Alexey Y. Timoshkin
- Institut für Chemie Staatliche Universität St. Petersburg Universitetskaya emb. 7/9 199034 St. Petersburg Russland
| | - Manfred Scheer
- Institut für Anorganische Chemie Universität Regensburg 93040 Regensburg Deutschland
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6
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Weinhart MAK, Lisovenko AS, Timoshkin AY, Scheer M. Phosphanylalanes and Phosphanylgallanes Stabilized only by a Lewis Base. Angew Chem Int Ed Engl 2020; 59:5541-5545. [PMID: 31815355 PMCID: PMC7155101 DOI: 10.1002/anie.201914046] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Indexed: 11/23/2022]
Abstract
The synthesis and characterization of the first parent phosphanylalane and phosphanylgallane stabilized only by a Lewis base (LB) are reported. The corresponding substituted compounds, such as IDipp⋅GaH2 PCy2 (1) (IDipp=1,3-bis(2,6-diisopropylphenyl)-imidazolin-2-ylidene) were obtained by the reaction of LiPCy2 with IDipp⋅GaH2 Cl. However, the LB-stabilized parent compounds IDipp⋅GaH2 PH2 (3) and IDipp⋅AlH2 PH2 (4) were prepared via a salt metathesis of LiPH2 ⋅DME with IDipp⋅E'H2 Cl (E'=Ga, Al) or by H2 -elimination reactions of IDipp⋅E'H3 (E'=Ga, Al) and PH3 , respectively. The compounds could be isolated as crystalline solids and completely characterized. Supporting DFT computations gave insight into the reaction pathways as well as into the stability of these compounds with respect to their decomposition behavior.
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Affiliation(s)
| | - Anna S. Lisovenko
- Institute of ChemistrySaint Petersburg State UniversityUniversitetskaya emb. 7/9199034St. PetersburgRussia
| | - Alexey Y. Timoshkin
- Institute of ChemistrySaint Petersburg State UniversityUniversitetskaya emb. 7/9199034St. PetersburgRussia
| | - Manfred Scheer
- Institut für Anorganische ChemieUniversität Regensburg93040RegensburgGermany
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7
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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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8
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Morris LJ, Rajabi NA, Hill MS, Manners I, McMullin CL, Mahon MF. Phosphinoborane interception at magnesium by borane-assisted phosphine-borane dehydrogenation. Dalton Trans 2020; 49:14584-14591. [DOI: 10.1039/d0dt03415k] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Ph2PBH2 is generated and trapped on-metal by addition of B(C6F5)3 to a β-diketiminato magnesium phospidoborane complex, similar reactivity is meanwhile prevented for the analogous calcium-based system by formation of a stable η6-toluene complex.
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Affiliation(s)
| | | | | | - Ian Manners
- Department of Chemistry
- University of Victoria
- Victoria
- Canada
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9
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Stennett TE, Jayaraman A, Brückner T, Schneider L, Braunschweig H. Hydrophosphination of boron-boron multiple bonds. Chem Sci 2019; 11:1335-1341. [PMID: 34123256 PMCID: PMC8148080 DOI: 10.1039/c9sc05908c] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
Five compounds containing boron–boron multiple bonds are shown to undergo hydrophosphination reactions with diphenylphosphine in the absence of a catalyst. With diborenes, the products obtained are highly dependent on the substitution pattern at the boron atoms, with both 1,1- and 1,2-hydrophosphinations observed. With a symmetrical diboryne, 1,2-hydrophosphination yields a hydro(phosphino)diborene. The different mechanistic pathways for the hydrophosphination of diborenes are rationalised with the aid of density functional theory calculations. Compounds containing boron–boron double and triple bonds are shown to undergo uncatalysed hydrophosphination reactions with diphenylphosphine.![]()
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Affiliation(s)
- Tom E Stennett
- Institut für Anorganische Chemie, 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
| | - Arumugam Jayaraman
- Institut für Anorganische Chemie, 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
| | - Tobias Brückner
- Institut für Anorganische Chemie, 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
| | - Lea Schneider
- Institut für Anorganische Chemie, 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
| | - Holger Braunschweig
- Institut für Anorganische Chemie, 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
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10
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Ordyszewska A, Szynkiewicz N, Perzanowski E, Chojnacki J, Wiśniewska A, Grubba R. Structural and spectroscopic analysis of a new family of monomeric diphosphinoboranes. Dalton Trans 2019; 48:12482-12495. [PMID: 31361287 DOI: 10.1039/c9dt02195g] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We present a series of amino- and aryl(diphosphino)boranes R2PB(R'')PR'2, where R2P, R'2P = tBu2P, tBuPhP, Ph2P, Cy2P, and R'' = iPr2N, Ph, which were obtained via the metathesis reaction of iPr2NBBr2 or PhBBr2 with selected lithium phosphides. The structures of isolated diphosphinoboranes were characterized in the solid state and in solution by means of X-ray diffraction and NMR spectroscopy, respectively. The utility of these P-B-P species as ligands for transition metal complexes was tested in the reaction with [(COD)PtMe2]. Moreover, we carried out DFT calculations to elucidate bonding interactions and philicity of the reactive centers as well as to analyze conformations of the studied species. Electronic and steric properties of substituents on P and B atoms were found to have a strong influence on the structures of the obtained compounds. Three main types of diphosphinoboranes were distinguished, based on the strength of P-B π-interaction within the molecule: (i) application of strong electron-donating substituents on P-atoms and electron-accepting phenyl groups on B atoms led to the structure with one double P[double bond, length as m-dash]B and one single P-B bond and diverse planar and pyramidal geometry of phosphanyl groups; (ii) reduction of the donor ability of phosphanyl groups gave diphosphanylboranes with delocalized P-B-P π-interactions; (iii) introduction of amino groups with strong donor abilities on B atoms canceled P-B π-interactions and allowed compounds with two very long P-B bonds and two pyramidal phosphanyl groups to be obtained.
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Affiliation(s)
- Anna Ordyszewska
- Department of Inorganic Chemistry, Faculty of Chemistry, Gdańsk University of Technology, G. Narutowicza St. 11/12, PL-80-233, Gdansk, Poland.
| | - Natalia Szynkiewicz
- Department of Inorganic Chemistry, Faculty of Chemistry, Gdańsk University of Technology, G. Narutowicza St. 11/12, PL-80-233, Gdansk, Poland.
| | - Emil Perzanowski
- Department of Inorganic Chemistry, Faculty of Chemistry, Gdańsk University of Technology, G. Narutowicza St. 11/12, PL-80-233, Gdansk, Poland.
| | - Jarosław Chojnacki
- Department of Inorganic Chemistry, Faculty of Chemistry, Gdańsk University of Technology, G. Narutowicza St. 11/12, PL-80-233, Gdansk, Poland.
| | - Aleksandra Wiśniewska
- Department of Inorganic Chemistry, Faculty of Chemistry, Gdańsk University of Technology, G. Narutowicza St. 11/12, PL-80-233, Gdansk, Poland.
| | - Rafał Grubba
- Department of Inorganic Chemistry, Faculty of Chemistry, Gdańsk University of Technology, G. Narutowicza St. 11/12, PL-80-233, Gdansk, Poland.
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11
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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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12
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Kaaz M, Locke RJC, Merz L, Benedikter M, König S, Bender J, Schlindwein SH, Nieger M, Gudat D. Phosphines with N‐Heterocyclic Boryl‐Substituents: Ligands for Coordination Chemistry and Catalysis. Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201801081] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Manuel Kaaz
- Institut für Anorganische Chemie University of Stuttgart Pfaffenwaldring 55 70550 Stuttgart Germany
| | - Ralf J. C. Locke
- Institut für Anorganische Chemie University of Stuttgart Pfaffenwaldring 55 70550 Stuttgart Germany
| | - Luisa Merz
- Institut für Anorganische Chemie University of Stuttgart Pfaffenwaldring 55 70550 Stuttgart Germany
| | - Mathis Benedikter
- Institut für Anorganische Chemie University of Stuttgart Pfaffenwaldring 55 70550 Stuttgart Germany
| | - Simon König
- Institut für Anorganische Chemie University of Stuttgart Pfaffenwaldring 55 70550 Stuttgart Germany
| | - Johannes Bender
- Institut für Anorganische Chemie University of Stuttgart Pfaffenwaldring 55 70550 Stuttgart Germany
| | - Simon H. Schlindwein
- Institut für Anorganische Chemie University of Stuttgart Pfaffenwaldring 55 70550 Stuttgart Germany
| | - Martin Nieger
- Department of Chemistry University of Helsinki P.O. Box 55 00014 University of Helsinki Finland
| | - Dietrich Gudat
- Institut für Anorganische Chemie University of Stuttgart Pfaffenwaldring 55 70550 Stuttgart Germany
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13
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Han D, Anke F, Trose M, Beweries T. Recent advances in transition metal catalysed dehydropolymerisation of amine boranes and phosphine boranes. Coord Chem Rev 2019. [DOI: 10.1016/j.ccr.2018.09.016] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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14
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Lorenzini F, Lagueux-Tremblay PL, Kayser LV, Anderson E, Arndtsen BA. Synthesis, structure and palladium coordination of ambiphilic, pyridine- and phosphine-tethered N-boryl imine ligands. Dalton Trans 2019; 48:5766-5772. [DOI: 10.1039/c8dt05100c] [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
New classes of ambiphilic ligands incorporating N-boryl imines can be generated in two steps from aldehydes, and their structure modulated by the ligand motif.
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15
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Drover MW, Peters JC. Expanding the allyl analogy: accessing η 3-P,B,P diphosphinoborane complexes of group 10. Dalton Trans 2018; 47:3733-3738. [PMID: 29441396 PMCID: PMC6005356 DOI: 10.1039/c8dt00058a] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Using the diphosphinoborane, (PPh2)2BMes (Mes = 2,4,6-Me3C6H3), we report the first examples of η3-P,B,P-ligated complexes using Ni(0) and Pt(ii). Reaction of (PPh2)2BMes with Ni(COD)2 or Pt(COD)Me2 (COD = 1,5-cyclooctadiene) results in gradual COD displacement to give [η3-P,B,P-(PPh2)2BMes]Ni(COD) (3) or [η3-P,B,P-(PPh2)2BMes]Pt(CH3)2 (6). Complex 3 serves as a versatile Ni-containing synthon for the preparation of square planar or tetrahedral Ni(0) complexes. Notably, the M-B interaction in these systems is non-negligible - with coordination resulting in an upfield shift of ca. 80 ppm in the 11B NMR spectrum. We also show that treatment of the PtIV halide precursor, [PtMe3I]4 with this ligand framework results in migration of X-type ligands (CH3- and I-) to boron and reductive elimination of ethane (C2H6) to give a distorted square planar zwitterionic PtII complex, Pt[κ2-P,P-(PPh2)2B(Mes)(CH3)][κ2-P,P-(PPh2)2B(Mes)(I)] (10). This reactivity suggests the feasibility of (PPh2)2BMes-ligand-induced labilization of M-X ligands.
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Affiliation(s)
- Marcus W Drover
- Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, USA.
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16
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Geier SJ, Vogels CM, Mellonie NR, Daley EN, Decken A, Doherty S, Westcott SA. The Phosphinoboration ofN-Heterocycles. Chemistry 2017; 23:14485-14499. [DOI: 10.1002/chem.201702203] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2017] [Indexed: 01/08/2023]
Affiliation(s)
- Stephen J. Geier
- Department of Chemistry and Biochemistry; Mount Allison University; Sackville NB E4L 1G8 Canada
| | - Christopher M. Vogels
- Department of Chemistry and Biochemistry; Mount Allison University; Sackville NB E4L 1G8 Canada
| | - Niall R. Mellonie
- NUCAT, School of Chemistry, Bedson Building; Newcastle University; Newcastle upon Tyne NE1 7RU England
| | - Erika N. Daley
- Department of Chemistry and Biochemistry; Mount Allison University; Sackville NB E4L 1G8 Canada
| | - Andreas Decken
- Department of Chemistry; University of New Brunswick; Fredericton NB E3B 5A3 Canada
| | - Simon Doherty
- NUCAT, School of Chemistry, Bedson Building; Newcastle University; Newcastle upon Tyne NE1 7RU England
| | - Stephen A. Westcott
- Department of Chemistry and Biochemistry; Mount Allison University; Sackville NB E4L 1G8 Canada
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Kano N, O'Brien NJ, Uematsu R, Ramozzi R, Morokuma K. Trihydroborates and Dihydroboranes Bearing a Pentacoordinated Phosphorus Atom: Double Ring Expansion To Balance the Coordination States. Angew Chem Int Ed Engl 2017; 56:5882-5885. [PMID: 28436088 DOI: 10.1002/anie.201701718] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2017] [Revised: 03/24/2017] [Indexed: 01/09/2023]
Abstract
The first trihydroborate bearing a pentacoordinated phosphorus atom was synthesized as a new P-B bonded compound. Hydride abstraction of the trihydroborate gave an intermediary dihydroborane, which showed hydroboration reactivity and was trapped with pyridine whilst maintaining the P-B bond. The dihydroborane underwent a rearrangement, which involved a double ring expansion to compensate for the unbalanced coordination states of the phosphorus and boron atoms, to give a new fused bicyclic phosphine-boronate.
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Affiliation(s)
- Naokazu Kano
- Department of Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Nathan J O'Brien
- Department of Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Ryohei Uematsu
- Fukui Institute for Fundamental Chemistry, Kyoto University, Takano-Nishihiraki-cho 34-4, Sakyou-ku, Kyoto, 606-8103, Japan
| | - Romain Ramozzi
- Fukui Institute for Fundamental Chemistry, Kyoto University, Takano-Nishihiraki-cho 34-4, Sakyou-ku, Kyoto, 606-8103, Japan
| | - Keiji Morokuma
- Fukui Institute for Fundamental Chemistry, Kyoto University, Takano-Nishihiraki-cho 34-4, Sakyou-ku, Kyoto, 606-8103, Japan
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18
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Kano N, O'Brien NJ, Uematsu R, Ramozzi R, Morokuma K. Trihydroborates and Dihydroboranes Bearing a Pentacoordinated Phosphorus Atom: Double Ring Expansion To Balance the Coordination States. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201701718] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Naokazu Kano
- Department of Chemistry; Graduate School of Science; The University of Tokyo; 7-3-1 Hongo, Bunkyo-ku Tokyo 113-0033 Japan
| | - Nathan J. O'Brien
- Department of Chemistry; Graduate School of Science; The University of Tokyo; 7-3-1 Hongo, Bunkyo-ku Tokyo 113-0033 Japan
| | - Ryohei Uematsu
- Fukui Institute for Fundamental Chemistry; Kyoto University; Takano-Nishihiraki-cho 34-4, Sakyou-ku Kyoto 606-8103 Japan
| | - Romain Ramozzi
- Fukui Institute for Fundamental Chemistry; Kyoto University; Takano-Nishihiraki-cho 34-4, Sakyou-ku Kyoto 606-8103 Japan
| | - Keiji Morokuma
- Fukui Institute for Fundamental Chemistry; Kyoto University; Takano-Nishihiraki-cho 34-4, Sakyou-ku Kyoto 606-8103 Japan
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19
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Hooper TN, Weller AS, Beattie NA, Macgregor SA. Dehydrocoupling of phosphine-boranes using the [RhCp*Me(PMe 3)(CH 2Cl 2)][BAr F4] precatalyst: stoichiometric and catalytic studies. Chem Sci 2015; 7:2414-2426. [PMID: 29997783 PMCID: PMC6003611 DOI: 10.1039/c5sc04150c] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2015] [Accepted: 12/19/2015] [Indexed: 01/08/2023] Open
Abstract
Detailed experimental and computational studies are reported on the fundamental B–H and P–H bond activation steps involved in the dehydrocoupling/dehydropolymerization of primary and secondary phosphine–boranes, H3B·PPhR′H (R = Ph, H), using the [RhCp*(PMe3)Me(ClCH2Cl)][BArF4] catalyst.
We report a detailed, combined experimental and computational study on the fundamental B–H and P–H bond activation steps involved in the dehydrocoupling/dehydropolymerization of primary and secondary phosphine–boranes, H3B·PPhR′H (R = Ph, H), using [RhCp*(PMe3)Me(ClCH2Cl)][BArF4], to either form polyphosphino-boranes [H2B·PPhH]n (Mn ∼ 15 000 g mol–1, PDI = 2.2) or the linear diboraphosphine H3B·PPh2BH2·PPh2H. A likely polymer-growth pathway of reversible chain transfer step-growth is suggested for H3B·PPhH2. Using secondary phosphine–boranes as model substrates a combined synthesis, structural (X-ray crystallography), labelling and computational approach reveals: initial bond activation pathways (B–H activation precedes P–H activation); key intermediates (phosphido-boranes, α-B-agostic base-stabilized boryls); and a catalytic route to the primary diboraphosphine (H3B·PPhHBH2·PPhH2). It is also shown that by changing the substituent at phosphorus (Ph or Cy versustBu) different final products result (phosphido-borane or base stabilized phosphino-borane respectively). These studies provide detailed insight into the pathways that are operating during dehydropolymerization.
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Affiliation(s)
- Thomas N Hooper
- Department of Chemistry , Chemistry Research Laboratories , University of Oxford , Mansfield Road , Oxford , OX1 3TA , UK .
| | - Andrew S Weller
- Department of Chemistry , Chemistry Research Laboratories , University of Oxford , Mansfield Road , Oxford , OX1 3TA , UK .
| | - Nicholas A Beattie
- Institute of Chemical Sciences , Heriot Watt University , Edinburgh , EH14 4AS , UK .
| | - Stuart A Macgregor
- Institute of Chemical Sciences , Heriot Watt University , Edinburgh , EH14 4AS , UK .
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20
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Lisovenko AS, Timoshkin AY. Comparative Computational Studies of Gaseous Alkali Metal AmidoboranesMNH2BH3and their Carbon AnalogsMC2H5(M= Li - Cs): Formation and Unimolecular Hydrogen Evolution. Z Anorg Allg Chem 2015. [DOI: 10.1002/zaac.201500714] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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21
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Marquardt C, Jurca T, Schwan KC, Stauber A, Virovets AV, Whittell GR, Manners I, Scheer M. Metal-Free Addition/Head-to-Tail Polymerization of Transient Phosphinoboranes, RPH-BH2: A Route to Poly(alkylphosphinoboranes). Angew Chem Int Ed Engl 2015; 54:13782-6. [PMID: 26427911 PMCID: PMC4648028 DOI: 10.1002/anie.201507084] [Citation(s) in RCA: 77] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2015] [Indexed: 11/12/2022]
Abstract
Mild thermolysis of Lewis base stabilized phosphinoborane monomers R(1)R(2)P-BH2⋅NMe3 (R(1),R(2)=H, Ph, or tBu/H) at room temperature to 100 °C provides a convenient new route to oligo- and polyphosphinoboranes [R(1)R(2)P-BH2]n. The polymerization appears to proceed via the addition/head-to-tail polymerization of short-lived free phosphinoborane monomers, R(1)R(2)P-BH2. This method offers access to high molar mass materials, as exemplified by poly(tert-butylphosphinoborane), that are currently inaccessible using other routes (e.g. catalytic dehydrocoupling).
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Affiliation(s)
- Christian Marquardt
- Universität Regensburg, Institut für Anorganische Chemie93040 Regensburg (Germany) E-mail:
| | - Titel Jurca
- School of Chemistry, Bristol UniversityCantock's Close, BS8 1TS, Bristol (UK) E-mail:
| | - Karl-Christian Schwan
- Universität Regensburg, Institut für Anorganische Chemie93040 Regensburg (Germany) E-mail:
| | - Andreas Stauber
- Universität Regensburg, Institut für Anorganische Chemie93040 Regensburg (Germany) E-mail:
| | - Alexander V Virovets
- Universität Regensburg, Institut für Anorganische Chemie93040 Regensburg (Germany) E-mail:
| | - George R Whittell
- School of Chemistry, Bristol UniversityCantock's Close, BS8 1TS, Bristol (UK) E-mail:
| | - Ian Manners
- School of Chemistry, Bristol UniversityCantock's Close, BS8 1TS, Bristol (UK) E-mail:
| | - Manfred Scheer
- Universität Regensburg, Institut für Anorganische Chemie93040 Regensburg (Germany) E-mail:
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22
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Marquardt C, Jurca T, Schwan KC, Stauber A, Virovets AV, Whittell GR, Manners I, Scheer M. Metallfreie Additions-/Kopf-Schwanz-Polymerisation von intermediär gebildeten Phosphanylboranen, RPH-BH2: ein Weg zu Poly(alkylphosphanylboranen). Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201507084] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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23
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24
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Chen J, Murillo Parra DA, Lalancette RA, Jäkle F. Diferrocenophosphaborin: A Planar-Chiral, Redox-Active and Anion-Responsive Ambiphilic Ligand. Angew Chem Int Ed Engl 2015; 54:10202-5. [DOI: 10.1002/anie.201504922] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2015] [Indexed: 11/11/2022]
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25
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Chen J, Murillo Parra DA, Lalancette RA, Jäkle F. Diferrocenophosphaborin: A Planar-Chiral, Redox-Active and Anion-Responsive Ambiphilic Ligand. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201504922] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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26
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Schäfer A, Jurca T, Turner J, Vance JR, Lee K, Du VA, Haddow MF, Whittell GR, Manners I. Iron-Catalyzed Dehydropolymerization: A Convenient Route to Poly(phosphinoboranes) with Molecular-Weight Control. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201411957] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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27
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Schäfer A, Jurca T, Turner J, Vance JR, Lee K, Du VA, Haddow MF, Whittell GR, Manners I. Iron-catalyzed dehydropolymerization: a convenient route to poly(phosphinoboranes) with molecular-weight control. Angew Chem Int Ed Engl 2015; 54:4836-41. [PMID: 25712707 DOI: 10.1002/anie.201411957] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2014] [Revised: 01/29/2015] [Indexed: 01/21/2023]
Abstract
The catalyst loading is the key to control the molecular weight of the polymer in the iron-catalyzed dehydropolymerization of phosphine-borane adducts. Studies showed that the reaction proceeds through a chain-growth coordination-insertion mechanism.
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Affiliation(s)
- André Schäfer
- School of Chemistry, Bristol University, Cantock's Close, BS8 1TS, Bristol (UK); Current adress: Saarland University, Department 8.1-Chemistry, 66123 Saarbrücken (Germany)
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28
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Bailey JA, Sparkes HA, Pringle PG. Single Oxygen-Atom Insertion into PB Bonds: On- and Off-Metal Transformation of a Borylphosphine into a Borylphosphinite. Chemistry 2015; 21:5360-3. [DOI: 10.1002/chem.201500378] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2015] [Indexed: 11/09/2022]
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29
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Devillard M, Nicolas E, Ehlers AW, Backs J, Mallet-Ladeira S, Bouhadir G, Slootweg JC, Uhl W, Bourissou D. Dative Au→Al interactions: crystallographic characterization and computational analysis. Chemistry 2014; 21:74-9. [PMID: 25418872 DOI: 10.1002/chem.201405610] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2014] [Indexed: 11/06/2022]
Abstract
Hitherto unknown Au→Al interactions have been evidenced upon coordination of the geminal phosphorus-aluminum Lewis pair Mes2 PC(=CHPh)AltBu2 (Mes=2,4,6-trimethylphenyl). Four different gold(I) complexes featuring alkyl (Me), aryl (Ph, C6F5), and alkynyl (C≡CPh) co-ligands have been prepared. X-ray diffraction analyses show that P→Au→Al bridging coordination induces noticeable bending of the ligand (the PCAl bond angle shrinks by 13°). This new type of transition metal→Lewis acid interaction has been analyzed by DFT calculations.
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Affiliation(s)
- Marc Devillard
- Université de Toulouse, UPS, LHFA, 118 route de Narbonne, 31062 Toulouse (France); CNRS, LHFA, UMR 5069, 31062 Toulouse (France)
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30
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Li ZF, Yang XP, Hui-Xue L, Guo Z. Electronic Structure of Gold Carbonyl Compounds RAuL (R = CF3, BO, Br, Cl, CH3, HCC, Mes3P, SIDipp; L = CO, N2, BO) and Origins of Aurophilic Interactions in the Clusters [RAuL]n (n = 2–4): A Theoretical Study. Organometallics 2014. [DOI: 10.1021/om4007505] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Zhi-Feng Li
- College
of Life Science and Chemistry, Key Laboratory for New Molecule Design
and Function of Gansu Universities, Tianshui Normal University, Tianshui 741001, People’s Republic of China
| | - Xiao-Ping Yang
- College
of Life Science and Chemistry, Key Laboratory for New Molecule Design
and Function of Gansu Universities, Tianshui Normal University, Tianshui 741001, People’s Republic of China
| | - Li Hui-Xue
- College
of Life Science and Chemistry, Key Laboratory for New Molecule Design
and Function of Gansu Universities, Tianshui Normal University, Tianshui 741001, People’s Republic of China
| | - Zhen Guo
- Department
of Chemistry, State Key Laboratory of Synthetic Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong
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31
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Bailey JA, Ploeger M, Pringle PG. Mono-, di-, and triborylphosphine analogues of triarylphosphines. Inorg Chem 2014; 53:7763-9. [PMID: 24975933 DOI: 10.1021/ic501133n] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Diazaborinylphosphines based on the 1,8-diaminonaphthylboronamide heterocycle are prepared by a chlorosilane-elimination reaction, and their structural and bonding properties are compared to those of PPh3. The precursor chloroborane ClB{1,8-(NH)2C10H6} (I) is fully characterized including its crystal structure, which features intermolecular π-π stacking, B···N interactions, and N-H···Cl hydrogen bonding. Treatment of I with Ph3-nP(SiMe3)n gave the corresponding Ph3-nP(B{1,8-(NH)2C10H6})n, {L1 (n = 1), L2 (n = 2), and L3 (n = 3)}. The crystal structures of L1-3 reveal an increase in the planarity at P as a function of n, and the steric bulk of the diazaborinyl substituent B{1,8-(NH)2C10H6} is similar to that of a phenyl. Nucleus-independent chemical shift calculations were carried out that suggest that the 14 π-electron diazaborinyl substituent can be described as aromatic overall, though the BN2-containing ring is slightly antiaromatic. The complexes cis-[Mo(L1-3)2(CO)4] (1-3) are prepared from [Mo(nbd)(CO)4] (nbd = norbornadiene) and L1-3. From the position of the ν(CO) (A1) band in the IR spectra of 1-3, it is deduced that the diazaborinyl substituent has a donating capacity similar to an alkyl group.
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Affiliation(s)
- Jonathan A Bailey
- School of Chemistry, University of Bristol , Cantock's Close, Bristol BS8 1TS, U.K
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32
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He G, Shynkaruk O, Lui MW, Rivard E. Small Inorganic Rings in the 21st Century: From Fleeting Intermediates to Novel Isolable Entities. Chem Rev 2014; 114:7815-80. [DOI: 10.1021/cr400547x] [Citation(s) in RCA: 156] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Gang He
- Department of Chemistry, University of Alberta, 11227 Saskatchewan
Drive, Edmonton, Alberta, Canada T6G 2G2
| | - Olena Shynkaruk
- Department of Chemistry, University of Alberta, 11227 Saskatchewan
Drive, Edmonton, Alberta, Canada T6G 2G2
| | - Melanie W. Lui
- Department of Chemistry, University of Alberta, 11227 Saskatchewan
Drive, Edmonton, Alberta, Canada T6G 2G2
| | - Eric Rivard
- Department of Chemistry, University of Alberta, 11227 Saskatchewan
Drive, Edmonton, Alberta, Canada T6G 2G2
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33
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Bailey JA, Haddow MF, Pringle PG. A simple route to azaborinylphosphines: isoelectronic B–N analogues of arylphosphine ligands. Chem Commun (Camb) 2014; 50:1432-4. [DOI: 10.1039/c3cc49000a] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Azaborinylphosphines are readily prepared by the reaction of silylphosphines with a chloroborane under mild conditions; they are shown to contain P–B bonds that are sufficiently robust to allow these ligands to be used in homogeneous catalysis.
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34
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Sajid M, Lawzer A, Dong W, Rosorius C, Sander W, Schirmer B, Grimme S, Daniliuc CG, Kehr G, Erker G. Carbonylation reactions of intramolecular vicinal frustrated phosphane/borane Lewis pairs. J Am Chem Soc 2013; 135:18567-74. [PMID: 24147963 DOI: 10.1021/ja408815k] [Citation(s) in RCA: 77] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The intramolecular frustrated Lewis pair (FLP) Mes2PCH2CH2B(C6F5)2 4 adds cooperatively to carbon monoxide to form the five-membered heterocyclic carbonyl compound 5. The intramolecular FLP 7 contains an exo-3-B(C6F5)2 Lewis acid and an endo-2-PMes2 Lewis base functionality coordinated at the norbornane framework. This noninteracting FLP adds carbon monoxide in solution at -35 °C cooperatively to yield a five-membered heterocyclic FLP-carbonyl compound 8. In contrast, FLP 7 is carbonylated in a CO-doped argon matrix at 25 K to selectively form a borane carbonyl 9 without involvement of the adjacent phosphanyl moiety. The free FLP 7 was generated in the gas phase from its FLPH2 product 10. A DFT study has shown that the phosphonium hydrido borate zwitterion 10 is formed exergonically in solution but tends to lose H2 when brought into the gas phase.
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Affiliation(s)
- Muhammad Sajid
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität , Corrensstraße 40, 48149 Münster, Germany
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35
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Jana R, Blacque O, Jiang Y, Berke H. Coordination Properties of Multidentate Phosphanylborane Ligands in Tungsten Nitrosyl Complexes. Eur J Inorg Chem 2013. [DOI: 10.1002/ejic.201201565] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Rajkumar Jana
- Institute of Inorganic Chemistry, University of Zürich, Winterthurerstrasse 190, 8057 Zürich, Switzerland, Fax: +41‐44‐6356802, http://www.aci.uzh.ch/en/research‐groups/emeriti/berke‐group/prof‐dr‐heinz‐berke/?tx_wfqbe_pi1
| | - Olivier Blacque
- Institute of Inorganic Chemistry, University of Zürich, Winterthurerstrasse 190, 8057 Zürich, Switzerland, Fax: +41‐44‐6356802, http://www.aci.uzh.ch/en/research‐groups/emeriti/berke‐group/prof‐dr‐heinz‐berke/?tx_wfqbe_pi1
| | - Yanfeng Jiang
- Institute of Inorganic Chemistry, University of Zürich, Winterthurerstrasse 190, 8057 Zürich, Switzerland, Fax: +41‐44‐6356802, http://www.aci.uzh.ch/en/research‐groups/emeriti/berke‐group/prof‐dr‐heinz‐berke/?tx_wfqbe_pi1
| | - Heinz Berke
- Institute of Inorganic Chemistry, University of Zürich, Winterthurerstrasse 190, 8057 Zürich, Switzerland, Fax: +41‐44‐6356802, http://www.aci.uzh.ch/en/research‐groups/emeriti/berke‐group/prof‐dr‐heinz‐berke/?tx_wfqbe_pi1
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36
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Thoms C, Marquardt C, Timoshkin AY, Bodensteiner M, Scheer M. Die Oligomerisierung von Phosphanylboran durch Titankomplexe. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201209703] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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37
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Thoms C, Marquardt C, Timoshkin AY, Bodensteiner M, Scheer M. The oligomerization of phosphinoborane by titanium complexes. Angew Chem Int Ed Engl 2013; 52:5150-4. [PMID: 23576333 DOI: 10.1002/anie.201209703] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2012] [Revised: 01/22/2013] [Indexed: 11/05/2022]
Affiliation(s)
- Christine Thoms
- Institut für Anorganische Chemie, Universität Regensburg, 93040 Regensburg, Germany
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38
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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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39
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40
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Amgoune A, Bouhadir G, Bourissou D. Reactions of Phosphine-Boranes and Related Frustrated Lewis Pairs with Transition Metal Complexes. Top Curr Chem (Cham) 2012; 334:281-311. [DOI: 10.1007/128_2012_370] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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