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Neururer F, Huter K, Seidl M, Hohloch S. Reactivity and Structure of a Bis-phenolate Niobium NHC Complex. ACS ORGANIC & INORGANIC AU 2022; 3:59-71. [PMID: 36748079 PMCID: PMC9896488 DOI: 10.1021/acsorginorgau.2c00028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Revised: 11/18/2022] [Accepted: 11/21/2022] [Indexed: 12/12/2022]
Abstract
We report the facile synthesis of a rare niobium(V) imido NHC complex with a dianionic OCO-pincer benzimidazolylidene ligand (L 1 ) with the general formula [NbL 1 (N t Bu)PyCl] 1-Py. We achieved this by in situ deprotonation of the corresponding azolium salt [H 3 L 1 ][Cl] and subsequent reaction with [Nb(N t Bu)Py 2 Cl 3 ]. The pyridine ligand in 1-Py can be removed by the addition of B(C6F5)3 as a strong Lewis acid leading to the formation of the pyridine-free complex 1. In contrast to similar vanadium(V) complexes, complex 1-Py was found to be a good precursor for various salt metathesis reactions, yielding a series of chalcogenido and pnictogenido complexes with the general formula [ NbL 1 (N t Bu)Py(EMes)] (E = O (2), S (3), NH (4), and PH (5)). Furthermore, complex 1-Py can be converted to alkyl complex (6) with 1 equiv of neosilyl lithium as a transmetallation agent. Addition of a second equivalent yields a new trianionic supporting ligand on the niobium center (7) in which the benzimidazolylidene ligand is alkylated at the former carbene carbon atom. The latter is an interesting chemically "noninnocent" feature of the benzimidazolylidene ligand potentially useful in catalysis and atom transfer reactions. Addition of mesityl lithium to 1-Py gives the pyridine-free aryl complex 8, which is stable toward "overarylation" by an additional equivalent of mesityl lithium. Electrochemical investigation revealed that complexes 1-Py and 1 are inert toward reduction in dichloromethane but show two irreversible reduction processes in tetrahydrofuran as a solvent. However, using standard reduction agents, e.g., KC8, K-mirror, and Na/Napht, no reduced products could be isolated. All complexes have been thoroughly studied by various techniques, including 1H-, 13C{1H}-, and 1H-15N HMBC NMR spectroscopy, IR spectroscopy, and X-ray diffraction analysis.
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2
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Romain C, Bellemin-Laponnaz S, Dagorne S. Recent progress on NHC-stabilized early transition metal (group 3–7) complexes: Synthesis and applications. Coord Chem Rev 2020. [DOI: 10.1016/j.ccr.2020.213411] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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3
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Petrov PA, Golubitskaya EA, Kompankov NB, Eltsov IV, Sukhikh TS, Sokolov MN. Binuclear Niobium Complex with Coordinated N-Heterocyclic Carbene. J STRUCT CHEM+ 2020. [DOI: 10.1134/s0022476619120151] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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4
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Srivastava R, Quadrelli EA, Camp C. Lability of Ta–NHC adducts as a synthetic route towards heterobimetallic Ta/Rh complexes. Dalton Trans 2020; 49:3120-3128. [DOI: 10.1039/d0dt00344a] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This work highlights the reactivity of Ta–NHC adducts and the aptitude of the NHC motif to transfer from Ta to Rh which is used with profit as an efficient synthetic route to access early/late heterobimetallic complexes.
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Affiliation(s)
- Ravi Srivastava
- Université de Lyon
- Institut de Chimie de Lyon
- C2P2 UMR 5265 CNRS
- F-69616 Villeurbanne
- France
| | | | - Clément Camp
- Université de Lyon
- Institut de Chimie de Lyon
- C2P2 UMR 5265 CNRS
- F-69616 Villeurbanne
- France
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5
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Zupanek Ž, Tramšek M, Kokalj A, Tavčar G. The peculiar case of conformations in coordination compounds of group V pentahalides with N-heterocyclic carbene and synthesis of their imidazolium salts. J Fluor Chem 2019. [DOI: 10.1016/j.jfluchem.2019.109373] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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6
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Bartalucci N, Belpassi L, Marchetti F, Pampaloni G, Zacchini S, Ciancaleoni G. Ubiquity of cis-Halide → Isocyanide Direct Interligand Interaction in Organometallic Complexes. Inorg Chem 2018; 57:14554-14563. [PMID: 30430836 DOI: 10.1021/acs.inorgchem.8b02088] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We recently reported a density functional theory (DFT) analysis of the Nb(V)-C bond in various NbCl5(L) complexes, discovering that the carbon ligand L receives electronic density from the metal (classical back-donation) and from the chlorides in the cis position (direct interligand interaction). Here we report the synthesis and the structural characterization of two new coordination compounds of niobium pentahalides, i.e., NbX5(CNXyl) (X = Cl, Br; Xyl = 2,6-C6H3Me2), and the corresponding DFT analyses of the Nb(V)-C bond using the Natural Orbitals for Chemical Valence-Charge Displacement (NOCV-CD) approach, confirming the presence of a cis-halide → isocyanide direct interligand interaction. To verify whether the latter is limited to Nb complexes or not, we performed a NOCV-CD analysis on a series of several organometallic complexes based on Ti(IV), Nb(V), Ta(V), Rh(III), Pd(II), and Au(III), all of which bear one halide ligand and m-xylyl-isocyanide in a mutual cis position, revealing that the cis-halide → isocyanide interaction is always present.
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Affiliation(s)
- Niccolò Bartalucci
- Dipartimento di Chimica e Chimica Industriale , Università di Pisa , Via Giuseppe Moruzzi 13 , Pisa 56124 , Italy
| | - Leonardo Belpassi
- Istituto di Scienze e Tecnologie Molecolari del CNR (CNR-ISTM), c/o Dipartimento di Chimica, Biologia e Biotecnologie, Università degli Studi di Perugia , via Elce di Sotto 8 , Perugia I-06123 , Italy
| | - Fabio Marchetti
- Dipartimento di Chimica e Chimica Industriale , Università di Pisa , Via Giuseppe Moruzzi 13 , Pisa 56124 , Italy
| | - Guido Pampaloni
- Dipartimento di Chimica e Chimica Industriale , Università di Pisa , Via Giuseppe Moruzzi 13 , Pisa 56124 , Italy
| | - Stefano Zacchini
- Dipartimento di Chimica Industriale "Toso Montanari" , Università di Bologna , Viale Risorgimento 4 , I-40136 Bologna , Italy
| | - Gianluca Ciancaleoni
- Dipartimento di Chimica e Chimica Industriale , Università di Pisa , Via Giuseppe Moruzzi 13 , Pisa 56124 , Italy
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7
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Ziegler JA, Prange C, Lohrey TD, Bergman RG, Arnold J. Hydroboration Reactivity of Niobium Bis(N-heterocyclic carbene)borate Complexes. Inorg Chem 2018; 57:5213-5224. [DOI: 10.1021/acs.inorgchem.8b00247] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Jessica A. Ziegler
- Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - Céline Prange
- Department of Chemistry, University of California, Berkeley, California 94720, United States
- Department of Chemistry and Applied Biosciences, Eidgenössische Technische Hochschule Zürich, Zürich CH-8093, Switzerland
| | - Trevor D. Lohrey
- Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - Robert G. Bergman
- Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - John Arnold
- Department of Chemistry, University of California, Berkeley, California 94720, United States
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8
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Srivastava R, Moneuse R, Petit J, Pavard PA, Dardun V, Rivat M, Schiltz P, Solari M, Jeanneau E, Veyre L, Thieuleux C, Quadrelli EA, Camp C. Early/Late Heterobimetallic Tantalum/Rhodium Species Assembled Through a Novel Bifunctional NHC-OH Ligand. Chemistry 2018; 24:4361-4370. [DOI: 10.1002/chem.201705507] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2017] [Indexed: 01/17/2023]
Affiliation(s)
- Ravi Srivastava
- C2P2 UMR 5265, Institut de Chimie de Lyon; Université de Lyon, CNRS, Université Lyon 1, ESCPE Lyon; 43 Bd du 11 Novembre 1918 F-69616 Villeurbanne France
| | - Raphaël Moneuse
- C2P2 UMR 5265, Institut de Chimie de Lyon; Université de Lyon, CNRS, Université Lyon 1, ESCPE Lyon; 43 Bd du 11 Novembre 1918 F-69616 Villeurbanne France
| | - Julien Petit
- C2P2 UMR 5265, Institut de Chimie de Lyon; Université de Lyon, CNRS, Université Lyon 1, ESCPE Lyon; 43 Bd du 11 Novembre 1918 F-69616 Villeurbanne France
| | - Paul-Alexis Pavard
- C2P2 UMR 5265, Institut de Chimie de Lyon; Université de Lyon, CNRS, Université Lyon 1, ESCPE Lyon; 43 Bd du 11 Novembre 1918 F-69616 Villeurbanne France
| | - Vincent Dardun
- C2P2 UMR 5265, Institut de Chimie de Lyon; Université de Lyon, CNRS, Université Lyon 1, ESCPE Lyon; 43 Bd du 11 Novembre 1918 F-69616 Villeurbanne France
| | - Madleen Rivat
- C2P2 UMR 5265, Institut de Chimie de Lyon; Université de Lyon, CNRS, Université Lyon 1, ESCPE Lyon; 43 Bd du 11 Novembre 1918 F-69616 Villeurbanne France
| | - Pauline Schiltz
- C2P2 UMR 5265, Institut de Chimie de Lyon; Université de Lyon, CNRS, Université Lyon 1, ESCPE Lyon; 43 Bd du 11 Novembre 1918 F-69616 Villeurbanne France
| | - Marius Solari
- C2P2 UMR 5265, Institut de Chimie de Lyon; Université de Lyon, CNRS, Université Lyon 1, ESCPE Lyon; 43 Bd du 11 Novembre 1918 F-69616 Villeurbanne France
| | - Erwann Jeanneau
- Centre de Diffractométrie Henri Longchambon; Université de Lyon, Université Lyon 1, Site CLEA-Bâtiment ISA; 5 rue de la Doua 69100 Villeurbanne France
| | - Laurent Veyre
- C2P2 UMR 5265, Institut de Chimie de Lyon; Université de Lyon, CNRS, Université Lyon 1, ESCPE Lyon; 43 Bd du 11 Novembre 1918 F-69616 Villeurbanne France
| | - Chloé Thieuleux
- C2P2 UMR 5265, Institut de Chimie de Lyon; Université de Lyon, CNRS, Université Lyon 1, ESCPE Lyon; 43 Bd du 11 Novembre 1918 F-69616 Villeurbanne France
| | - Elsje Alessandra Quadrelli
- C2P2 UMR 5265, Institut de Chimie de Lyon; Université de Lyon, CNRS, Université Lyon 1, ESCPE Lyon; 43 Bd du 11 Novembre 1918 F-69616 Villeurbanne France
| | - Clément Camp
- C2P2 UMR 5265, Institut de Chimie de Lyon; Université de Lyon, CNRS, Université Lyon 1, ESCPE Lyon; 43 Bd du 11 Novembre 1918 F-69616 Villeurbanne France
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9
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Free methylidyne? CCC-NHC tantalum bis(imido) reactivity: protonation, rearrangement to a mixed unsymmetrical CCC-N-heterocyclic carbene/N-heterocyclic dicarbene (CCC-NHC/NHDC) pincer tantalum bis(imido) complex. Inorganica Chim Acta 2018. [DOI: 10.1016/j.ica.2017.08.050] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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10
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Ciancaleoni G, Belpassi L, Marchetti F. Back-Donation in High-Valent d0 Metal Complexes: Does It Exist? The Case of NbV. Inorg Chem 2017; 56:11266-11274. [DOI: 10.1021/acs.inorgchem.7b01635] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Gianluca Ciancaleoni
- Dipartimento di
Chimica e Chimica Industriale, Università degli Studi di Pisa, via Giuseppe Moruzzi 13, Pisa 56124, Italy
| | - Leonardo Belpassi
- Istituto di Scienze
e Tecnologie Molecolari del CNR (CNR-ISTM), c/o Dipartimento di Chimica,
Biologia e Biotecnologie, Università degli Studi di Perugia, via Elce di Sotto 8, Perugia I-06123, Italy
| | - Fabio Marchetti
- Dipartimento di
Chimica e Chimica Industriale, Università degli Studi di Pisa, via Giuseppe Moruzzi 13, Pisa 56124, Italy
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11
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Petrov PA, Sukhikh TS, Sokolov MN. NHC adducts of tantalum amidohalides: the first example of NHC abnormally coordinated to an early transition metal. Dalton Trans 2017; 46:4902-4906. [DOI: 10.1039/c7dt00748e] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
The first abnormally coordinated NHC complex of an early transition metal, [(aIMes)TaCl2(NMe2)3], is prepared.
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Affiliation(s)
- Pavel A. Petrov
- Nikolaev Institute of Inorganic Chemistry SB RAS
- 630090 Novosibirsk
- Russian Federation
- Novosibirsk State University
- 630090 Novosibirsk
| | - Taisiya S. Sukhikh
- Nikolaev Institute of Inorganic Chemistry SB RAS
- 630090 Novosibirsk
- Russian Federation
| | - Maxim N. Sokolov
- Nikolaev Institute of Inorganic Chemistry SB RAS
- 630090 Novosibirsk
- Russian Federation
- Novosibirsk State University
- 630090 Novosibirsk
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12
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Bortoluzzi M, Ferretti E, Marchetti F, Pampaloni G, Zacchini S. A crystallographic and DFT study on a NHC complex of niobium oxide trifluoride. J COORD CHEM 2016. [DOI: 10.1080/00958972.2016.1214950] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Marco Bortoluzzi
- Dipartimento di Scienze Molecolari e Nanosistemi, Ca’ Foscari Università di Venezia, Mestre (Venezia), Italy
| | - Eleonora Ferretti
- Dipartimento di Chimica e Chimica Industriale, Università di Pisa, Pisa, Italy
| | - Fabio Marchetti
- Dipartimento di Chimica e Chimica Industriale, Università di Pisa, Pisa, Italy
- Institut für Anorganische Chemie, Georg-August-Universität Göttingen, Göttingen, Germany
| | - Guido Pampaloni
- Dipartimento di Chimica e Chimica Industriale, Università di Pisa, Pisa, Italy
| | - Stefano Zacchini
- Dipartimento di Chimica Industriale “Toso Montanari”, Università di Bologna, Bologna, Italy
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