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Lachguar A, Del Rosal I, Maron L, Jeanneau E, Veyre L, Thieuleux C, Camp C. π-Bonding of Group 11 Metals to a Tantalum Alkylidyne Alkyl Complex Promotes Unusual Tautomerism to Bis-alkylidene and CO 2 to Ketenyl Transformation. J Am Chem Soc 2024; 146:18306-18319. [PMID: 38936814 PMCID: PMC11240581 DOI: 10.1021/jacs.4c02172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/29/2024]
Abstract
A salt metathesis synthetic strategy is used to access rare tantalum/coinage metal (Cu, Ag, Au) heterobimetallic complexes. Specifically, complex [Li(THF)2][Ta(CtBu)(CH2tBu)3], 1, reacts with (IPr)MCl (M = Cu, Ag, Au, IPr = 1,3-bis(2,6-diisopropylphenyl)imidazol-2-ylidene) to afford the alkylidyne-bridged species [Ta(CH2tBu)3(μ-CtBu)M(IPr)] 2-M. Interestingly, π-bonding of group 11 metals to the Ta─C moiety promotes a rare alkylidyne alkyl to bis-alkylidene tautomerism, in which compounds 2-M are in equilibrium with [Ta(CHtBu)(CH2tBu)2(μ-CHtBu)M(IPr)] 3-M. This equilibrium was studied in detail using NMR spectroscopy and computational studies. This reveals that the equilibrium position is strongly dependent on the nature of the coinage metal going down the group 11 triad, thus offering a new valuable avenue for controlling this phenomenon. Furthermore, we show that these uncommon bimetallic couples could open attractive opportunities for synergistic reactivity. We notably report an uncommon deoxygenative carbyne transfer to CO2 resulting in rare examples of coinage metal ketenyl species, (tBuCCO)M(IPr), 4-M (M = Cu, Ag, Au). In the case of the Ta/Li analogue 1, the bis(alkylidene) tautomer is not detected, and the reaction with CO2 does not cleanly yield ketenyl species, which highlights the pivotal role played by the coinage metal partner in controlling these unconventional reactions.
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Affiliation(s)
- Abdelhak Lachguar
- Laboratory of Catalysis, Polymerization, Processes and Materials (CP2M UMR 5128), CNRS, Universite Claude Bernard Lyon 1, CPE-Lyon, Institut de Chimie de Lyon, 43 Bd du 11 Novembre 1918, Villeurbanne F-69616, France
| | - Iker Del Rosal
- CNRS, INSA, UPS, UMR 5215, LPCNO, Université de Toulouse, 135 Avenue de Rangueil, Toulouse F-31077, France
| | - Laurent Maron
- CNRS, INSA, UPS, UMR 5215, LPCNO, Université de Toulouse, 135 Avenue de Rangueil, Toulouse F-31077, France
| | - Erwann Jeanneau
- Centre de Diffractométrie Henri Longchambon, Université de Lyon, 5 Rue de la Doua, Villeurbanne 69100, France
| | - Laurent Veyre
- Laboratory of Catalysis, Polymerization, Processes and Materials (CP2M UMR 5128), CNRS, Universite Claude Bernard Lyon 1, CPE-Lyon, Institut de Chimie de Lyon, 43 Bd du 11 Novembre 1918, Villeurbanne F-69616, France
| | - Chloé Thieuleux
- Laboratory of Catalysis, Polymerization, Processes and Materials (CP2M UMR 5128), CNRS, Universite Claude Bernard Lyon 1, CPE-Lyon, Institut de Chimie de Lyon, 43 Bd du 11 Novembre 1918, Villeurbanne F-69616, France
| | - Clément Camp
- Laboratory of Catalysis, Polymerization, Processes and Materials (CP2M UMR 5128), CNRS, Universite Claude Bernard Lyon 1, CPE-Lyon, Institut de Chimie de Lyon, 43 Bd du 11 Novembre 1918, Villeurbanne F-69616, France
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Tafazolian H, Schrock RR, Müller P. Synthesis of Molybdenum(VI) Neopentylidene Neopentylidyne Complexes. Organometallics 2019. [DOI: 10.1021/acs.organomet.9b00412] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Hosein Tafazolian
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
- Department of Chemistry, University of California at Riverside, Riverside, California 92521, United States
| | - Richard R. Schrock
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
- Department of Chemistry, University of California at Riverside, Riverside, California 92521, United States
| | - Peter Müller
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
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Wolczanski PT. Activation of Carbon–Hydrogen Bonds via 1,2-RH-Addition/-Elimination to Early Transition Metal Imides. Organometallics 2018. [DOI: 10.1021/acs.organomet.7b00753] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Peter T. Wolczanski
- Department of Chemistry & Chemical Biology, Baker Laboratory, Cornell University, Ithaca, New York 14853, United States
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Bendjeriou-Sedjerari A, Sofack-Kreutzer J, Minenkov Y, Abou-Hamad E, Hamzaoui B, Werghi B, Anjum DH, Cavallo L, Huang KW, Basset JM. Tungsten(VI) Carbyne/Bis(carbene) Tautomerization Enabled by N-Donor SBA15 Surface Ligands: A Solid-State NMR and DFT Study. Angew Chem Int Ed Engl 2016; 55:11162-6. [PMID: 27514022 DOI: 10.1002/anie.201605934] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2016] [Indexed: 11/11/2022]
Abstract
Designing supported well-defined bis(carbene) complexes remains a key challenge in heterogeneous catalysis. The reaction of W(≡CtBu)(CH2 tBu)3 with amine-modified mesoporous SBA15 silica, which has vicinal silanol/silylamine pairs [(≡SiOH)(≡SiNH2 )], leads to [(≡SiNH2 -)(≡SiO-)W(≡CHtBu)(CH2 tBu)2 ] and [(≡SiNH2 -)(≡SiO-)W(=CHtBu)2 (CH2 tBu). Variable temperature, (1) H-(1) H 2D double-quantum, (1) H-(13) C HETCOR, and HETCOR with spin diffusion solid-state NMR spectroscopy demonstrate tautomerization between the alkyl alkylidyne and the bis(alkylidene) on the SBA15 surface. Such equilibrium is possible through the coordination of W to the surface [(≡Si-OH)(≡Si-NH2 )] groups, which act as a [N,O] pincer ligand. DFT calculations provide a rationalization for the surface-complex tautomerization and support the experimental results. This direct observation of such a process shows the strong similarity between molecular mechanisms in homogeneous and heterogeneous catalysis. In propane metathesis (at 150 °C), the tungsten bis(carbene) tautomer is favorable, with a turnover number (TON) of 262. It is the highest TON among all the tungsten alkyl-supported catalysts.
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Affiliation(s)
- Anissa Bendjeriou-Sedjerari
- King Abdullah University of Science and Technology (KAUST), Kaust Catalysis Center (KCC), Thuwal, 23955-6900, Saudi Arabia
| | - Julien Sofack-Kreutzer
- King Abdullah University of Science and Technology (KAUST), Kaust Catalysis Center (KCC), Thuwal, 23955-6900, Saudi Arabia
| | - Yury Minenkov
- King Abdullah University of Science and Technology (KAUST), Kaust Catalysis Center (KCC), Thuwal, 23955-6900, Saudi Arabia
| | - Edy Abou-Hamad
- King Abdullah University of Science and Technology (KAUST), Kaust Catalysis Center (KCC), Thuwal, 23955-6900, Saudi Arabia
| | - Bilel Hamzaoui
- King Abdullah University of Science and Technology (KAUST), Kaust Catalysis Center (KCC), Thuwal, 23955-6900, Saudi Arabia
| | - Baraa Werghi
- King Abdullah University of Science and Technology (KAUST), Kaust Catalysis Center (KCC), Thuwal, 23955-6900, Saudi Arabia
| | - Dalaver H Anjum
- King Abdullah University of Science and Technology (KAUST), Kaust Catalysis Center (KCC), Thuwal, 23955-6900, Saudi Arabia
| | - Luigi Cavallo
- King Abdullah University of Science and Technology (KAUST), Kaust Catalysis Center (KCC), Thuwal, 23955-6900, Saudi Arabia
| | - Kuo-Wei Huang
- King Abdullah University of Science and Technology (KAUST), Kaust Catalysis Center (KCC), Thuwal, 23955-6900, Saudi Arabia
| | - Jean-Marie Basset
- King Abdullah University of Science and Technology (KAUST), Kaust Catalysis Center (KCC), Thuwal, 23955-6900, Saudi Arabia.
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Bendjeriou-Sedjerari A, Sofack-Kreutzer J, Minenkov Y, Abou-Hamad E, Hamzaoui B, Werghi B, Anjum DH, Cavallo L, Huang KW, Basset JM. Tungsten(VI) Carbyne/Bis(carbene) Tautomerization Enabled by N-Donor SBA15 Surface Ligands: A Solid-State NMR and DFT Study. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201605934] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Anissa Bendjeriou-Sedjerari
- King Abdullah University of Science and Technology (KAUST), Kaust Catalysis Center (KCC); Thuwal 23955-6900 Saudi Arabia
| | - Julien Sofack-Kreutzer
- King Abdullah University of Science and Technology (KAUST), Kaust Catalysis Center (KCC); Thuwal 23955-6900 Saudi Arabia
| | - Yury Minenkov
- King Abdullah University of Science and Technology (KAUST), Kaust Catalysis Center (KCC); Thuwal 23955-6900 Saudi Arabia
| | - Edy Abou-Hamad
- King Abdullah University of Science and Technology (KAUST), Kaust Catalysis Center (KCC); Thuwal 23955-6900 Saudi Arabia
| | - Bilel Hamzaoui
- King Abdullah University of Science and Technology (KAUST), Kaust Catalysis Center (KCC); Thuwal 23955-6900 Saudi Arabia
| | - Baraa Werghi
- King Abdullah University of Science and Technology (KAUST), Kaust Catalysis Center (KCC); Thuwal 23955-6900 Saudi Arabia
| | - Dalaver H. Anjum
- King Abdullah University of Science and Technology (KAUST), Kaust Catalysis Center (KCC); Thuwal 23955-6900 Saudi Arabia
| | - Luigi Cavallo
- King Abdullah University of Science and Technology (KAUST), Kaust Catalysis Center (KCC); Thuwal 23955-6900 Saudi Arabia
| | - Kuo-Wei Huang
- King Abdullah University of Science and Technology (KAUST), Kaust Catalysis Center (KCC); Thuwal 23955-6900 Saudi Arabia
| | - Jean-Marie Basset
- King Abdullah University of Science and Technology (KAUST), Kaust Catalysis Center (KCC); Thuwal 23955-6900 Saudi Arabia
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Hunter SC, Chen SJ, Steren CA, Richmond MG, Xue ZL. Syntheses and Characterization of Tantalum Alkyl Imides and Amide Imides. DFT Studies of Unusual α-SiMe3 Abstraction by an Amide Ligand. Organometallics 2015. [DOI: 10.1021/acs.organomet.5b00558] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Seth C. Hunter
- Department of Chemistry, The University of Tennessee, Knoxville, Tennessee 37996, United States
| | - Shu-Jian Chen
- Department of Chemistry, The University of Tennessee, Knoxville, Tennessee 37996, United States
| | - Carlos A. Steren
- Department of Chemistry, The University of Tennessee, Knoxville, Tennessee 37996, United States
| | - Michael G. Richmond
- Department of Chemistry, The University of North Texas, Denton, Texas 76203, United States
| | - Zi-Ling Xue
- Department of Chemistry, The University of Tennessee, Knoxville, Tennessee 37996, United States
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Affiliation(s)
- Christopher J. Varjas
- Department of Chemistry and
Biochemistry, Stephenson Life Science Research Center, University of Oklahoma, 101 Stephenson Parkway, Norman, Oklahoma 73019, United States
| | - Douglas R. Powell
- Department of Chemistry and
Biochemistry, Stephenson Life Science Research Center, University of Oklahoma, 101 Stephenson Parkway, Norman, Oklahoma 73019, United States
| | - Robert K. Thomson
- Department of Chemistry and
Biochemistry, Stephenson Life Science Research Center, University of Oklahoma, 101 Stephenson Parkway, Norman, Oklahoma 73019, United States
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Chen P, Dougan BA, Zhang X, Wu YD, Xue ZL. Reactions of a tungsten alkylidyne complex with mono-dentate phosphines: Thermodynamic and theoretical studies. Polyhedron 2013. [DOI: 10.1016/j.poly.2012.07.042] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Xue ZL, Morton LA. Transition metal alkylidene complexes. Pathways in their formation and tautomerization between bis-alkylidenes and alkyl alkylidynes. J Organomet Chem 2011. [DOI: 10.1016/j.jorganchem.2011.06.048] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Dougan BA, Xue ZL. Unusual reaction of a tungsten alkylidyne complex with water. Formation, characterization, and crystal structures of oxo trimers. Sci China Chem 2011. [DOI: 10.1007/s11426-011-4419-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Herndon JW. The chemistry of the carbon–transition metal double and triple bond: Annual survey covering the year 2009. Coord Chem Rev 2011. [DOI: 10.1016/j.ccr.2010.07.003] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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