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Asia, Sammer Y, Vendier L, Massiot G. Structure and Synthesis of Vindolicine and Derivatives. Chem Biodivers 2024; 21:e202301928. [PMID: 38409504 DOI: 10.1002/cbdv.202301928] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Accepted: 01/15/2024] [Indexed: 02/28/2024]
Abstract
This article describes the reaction of vindoline with formaldehyde and trimethyl orthoformate to prepare vindolicine, tris-vindolicinyl methane and higher molecular weight homologues. The synthesis of 10-formyl vindoline as an intermediate allowed further exploration of its chemistry, in particular the reaction with acetone which yielded a symmetrical dimer, which was further reacted with vindoline to give molecules containing three and four vindoline units. These molecules were characterized by NMR and for some of them (vindolicine, 10-formyl vindoline, 10-(1'-(but-1'-en-3'-one))-vindoline) by X-ray crystallography. Depending on the substitution and on the absence of axes of symmetry, the NMR spectra displayed non-equivalent spin systems for the vindoline moieties. The dimer formed from the double condensation of 10-formyl vindoline with acetone showed cytotoxic activity in the micromolar range.
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Affiliation(s)
- Asia
- H. E. J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, 75270, Sindh, Pakistan
| | - Yousuf Sammer
- H. E. J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, 75270, Sindh, Pakistan
| | - Laure Vendier
- UPR CNRS 8241, Laboratoire de Chimie de Coordination, 205 Route de Narbonne, 31077, Toulouse Cedex 04, France
| | - Georges Massiot
- Institut de Chimie Moléculaire de Reims, UMR CNRS 7312, Université Reims-Champagne-Ardenne, UFR Sciences, BP 1039, CEDEX 2, 51687, Reims, France
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2
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Morales A, Gonçalves C, Sournia-Saquet A, Vendier L, Lledós A, Baslé O, Bontemps S. Single electron reduction of NHC-CO 2-borane compounds. Chem Sci 2024; 15:3165-3173. [PMID: 38425525 PMCID: PMC10901481 DOI: 10.1039/d3sc06325a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Accepted: 01/18/2024] [Indexed: 03/02/2024] Open
Abstract
The carbon dioxide radical anion [CO2˙-] is a highly reactive species of fundamental and synthetic interest. However, the direct one-electron reduction of CO2 to generate [CO2˙-] occurs at very negative reduction potentials, which is often a limiting factor for applications. Here, we show that NHC-CO2-BR3 species - generated from the Frustrated Lewis Pair (FLP)-type activation of CO2 by N-heterocyclic carbenes (NHCs) and boranes (BR3) - undergo single electron reduction at a less negative potential than free CO2. A net gain of more than one volt was notably measured with a CAAC-CO2-B(C6F5)3 adduct, which was chemically reduced to afford [CAAC-CO2-B(C6F5)3˙-]. This room temperature stable radical anion was characterized by EPR spectroscopy and by single-crystal X-ray diffraction analysis. Of particular interest, DFT calculations showed that, thanks to the electron withdrawing properties of the Lewis acid, significant unpaired spin density is localised on the carbon atom of the CO2 moiety. Finally, these species were shown to exhibit analogous reactivity to the carbon dioxide radical anion [CO2˙-] toward DMPO. This work demonstrates the advantage provided by FLP systems in the generation and stabilization of [CO2˙-]-like species.
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Affiliation(s)
- Agustín Morales
- LCC-CNRS, Université de Toulouse, CNRS, 205 route de Narbonne 31077 Toulouse Cedex 04 France
- Departament de Química, Universitat Autonoma de Barcelona 08193 Cerdanyola del Valles Catalonia Spain
| | - Caroline Gonçalves
- LCC-CNRS, Université de Toulouse, CNRS, 205 route de Narbonne 31077 Toulouse Cedex 04 France
| | - Alix Sournia-Saquet
- LCC-CNRS, Université de Toulouse, CNRS, 205 route de Narbonne 31077 Toulouse Cedex 04 France
| | - Laure Vendier
- LCC-CNRS, Université de Toulouse, CNRS, 205 route de Narbonne 31077 Toulouse Cedex 04 France
| | - Agustí Lledós
- Departament de Química, Universitat Autonoma de Barcelona 08193 Cerdanyola del Valles Catalonia Spain
| | - Olivier Baslé
- LCC-CNRS, Université de Toulouse, CNRS, 205 route de Narbonne 31077 Toulouse Cedex 04 France
| | - Sébastien Bontemps
- LCC-CNRS, Université de Toulouse, CNRS, 205 route de Narbonne 31077 Toulouse Cedex 04 France
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3
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Gulyaeva ES, Osipova ES, Kovalenko SA, Filippov OA, Belkova NV, Vendier L, Canac Y, Shubina ES, Valyaev DA. Two active species from a single metal halide precursor: a case study of highly productive Mn-catalyzed dehydrogenation of amine-boranes via intermolecular bimetallic cooperation. Chem Sci 2024; 15:1409-1417. [PMID: 38274083 PMCID: PMC10806649 DOI: 10.1039/d3sc05356c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Accepted: 12/06/2023] [Indexed: 01/27/2024] Open
Abstract
Metal-metal cooperation for inert bond activation is a ubiquitous concept in coordination chemistry and catalysis. While the great majority of such transformations proceed via intramolecular mode in binuclear complexes, to date only a few examples of intermolecular small molecule activation using usually bimetallic frustrated Lewis pairs (Mδ+⋯M'δ-) have been reported. We introduce herein an alternative approach for the intermolecular bimetallic cooperativity observed in the catalytic dehydrogenation of amine-boranes, in which the concomitant activation of N-H and B-H bonds of the substrate via the synergetic action of Lewis acidic (M+) and basic hydride (M-H) metal species derived from the same mononuclear complex (M-Br). It was also demonstrated that this system generated in situ from the air-stable Mn(i) complex fac-[(CO)3(bis(NHC))MnBr] and NaBPh4 shows high activity for H2 production from several substrates (Me2NHBH3, tBuNH2BH3, MeNH2BH3, NH3BH3) at low catalyst loading (0.1% to 50 ppm), providing outstanding efficiency for Me2NHBH3 (TON up to 18 200) that is largely superior to all known 3d-, s-, p-, f-block metal derivatives and frustrated Lewis pairs (FLPs). These results represent a step forward towards more extensive use of intermolecular bimetallic cooperation concepts in modern homogeneous catalysis.
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Affiliation(s)
- Ekaterina S Gulyaeva
- LCC-CNRS, Université de Toulouse, CNRS, UPS 205 Route de Narbonne 31077 Toulouse Cedex 4 France
- A. N. Nesmeyanov Institute of Organoelement Compounds (INEOS), Russian Academy of Sciences 28/1 Vavilov Str., GSP-1, B-334 Moscow 119334 Russia
| | - Elena S Osipova
- A. N. Nesmeyanov Institute of Organoelement Compounds (INEOS), Russian Academy of Sciences 28/1 Vavilov Str., GSP-1, B-334 Moscow 119334 Russia
| | - Sergey A Kovalenko
- A. N. Nesmeyanov Institute of Organoelement Compounds (INEOS), Russian Academy of Sciences 28/1 Vavilov Str., GSP-1, B-334 Moscow 119334 Russia
| | - Oleg A Filippov
- A. N. Nesmeyanov Institute of Organoelement Compounds (INEOS), Russian Academy of Sciences 28/1 Vavilov Str., GSP-1, B-334 Moscow 119334 Russia
| | - Natalia V Belkova
- A. N. Nesmeyanov Institute of Organoelement Compounds (INEOS), Russian Academy of Sciences 28/1 Vavilov Str., GSP-1, B-334 Moscow 119334 Russia
| | - Laure Vendier
- LCC-CNRS, Université de Toulouse, CNRS, UPS 205 Route de Narbonne 31077 Toulouse Cedex 4 France
| | - Yves Canac
- LCC-CNRS, Université de Toulouse, CNRS, UPS 205 Route de Narbonne 31077 Toulouse Cedex 4 France
| | - Elena S Shubina
- A. N. Nesmeyanov Institute of Organoelement Compounds (INEOS), Russian Academy of Sciences 28/1 Vavilov Str., GSP-1, B-334 Moscow 119334 Russia
| | - Dmitry A Valyaev
- LCC-CNRS, Université de Toulouse, CNRS, UPS 205 Route de Narbonne 31077 Toulouse Cedex 4 France
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4
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Specklin D, Boegli MC, Coffinet A, Escomel L, Vendier L, Grellier M, Simonneau A. An orbitally adapted push-pull template for N 2 activation and reduction to diazene-diide. Chem Sci 2023; 14:14262-14270. [PMID: 38098710 PMCID: PMC10718075 DOI: 10.1039/d3sc04390h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Accepted: 11/19/2023] [Indexed: 12/17/2023] Open
Abstract
A Lewis superacidic bis(borane) C6F4{B(C6F5)2}2 was reacted with tungsten N2-complexes [W(N2)2(R2PCH2CH2PR2)2] (R = Ph or Et), affording zwitterionic boryldiazenido W(ii) complexes trans-[W(L)(R2PCH2CH2PR2)2(N2{B(C6F5)2(C6F4B(C6F5)3})] (L = ø, N2 or THF). These compounds feature only one N-B linkage of the covalent type, as a result of intramolecular boron-to-boron C6F5 transfer. Complex trans-[W(THF)(Et2PCH2CH2PEt2)2(N2{B(C6F5)2C6F4B(C6F5)3})] (5) was shown to split H2, leading to a seven-coordinate complex [W(H)2(Et2PCH2CH2PEt2)2(N2{B(C6F5)2}2C6F4)] (7). Interestingly, hydride storage at the metal triggers backward C6F5 transfer. This reverts the bis(boron) moiety to its bis(borane) state, now doubly binding the distal N, with structural parameters and DFT computations pointing to dative N→B bonding. By comparison with an N2 complex [W(H)2(Et2PCH2CH2PEt2)2(N2{B(C6F5)3}] (10) differing only in the Lewis acid (LA), namely B(C6F5)3, coordinated to the distal N, we demonstrate that two-fold LA coordination imparts strong N2 activation up to the diazene-diide (N22-) state. To the best of our knowledge, this is the first example of a neutral LA coordination that induces reduction of N2.
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Affiliation(s)
- David Specklin
- LCC-CNRS, Université de Toulouse, CNRS, UPS 205 route de Narbonne BP44099 F-31077 Toulouse Cedex 4 France
| | - Marie-Christine Boegli
- LCC-CNRS, Université de Toulouse, CNRS, UPS 205 route de Narbonne BP44099 F-31077 Toulouse Cedex 4 France
| | - Anaïs Coffinet
- LCC-CNRS, Université de Toulouse, CNRS, UPS 205 route de Narbonne BP44099 F-31077 Toulouse Cedex 4 France
| | - Léon Escomel
- LCC-CNRS, Université de Toulouse, CNRS, UPS 205 route de Narbonne BP44099 F-31077 Toulouse Cedex 4 France
| | - Laure Vendier
- LCC-CNRS, Université de Toulouse, CNRS, UPS 205 route de Narbonne BP44099 F-31077 Toulouse Cedex 4 France
| | - Mary Grellier
- LCC-CNRS, Université de Toulouse, CNRS, UPS 205 route de Narbonne BP44099 F-31077 Toulouse Cedex 4 France
| | - Antoine Simonneau
- LCC-CNRS, Université de Toulouse, CNRS, UPS 205 route de Narbonne BP44099 F-31077 Toulouse Cedex 4 France
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5
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Le Dé Q, Bouammali A, Bijani C, Vendier L, Del Rosal I, Valyaev DA, Dinoi C, Simonneau A. An Experimental and Computational Investigation Rules Out Direct Nucleophilic Addition on the N 2 Ligand in Manganese Dinitrogen Complex [Cp(CO) 2 Mn(N 2 )]. Angew Chem Int Ed Engl 2023; 62:e202305235. [PMID: 37379032 DOI: 10.1002/anie.202305235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Revised: 06/27/2023] [Accepted: 06/28/2023] [Indexed: 06/29/2023]
Abstract
We have re-examined the reactivity of the manganese dinitrogen complex [Cp(CO)2 Mn(N2 )] (1, Cp=η5 -cyclopentadienyl, C5 H5 ) with phenylithium (PhLi). By combining experiment and density functional theory (DFT), we have found that, unlike previously reported, the direct nucleophilic attack of the carbanion onto coordinated dinitrogen does not occur. Instead, PhLi reacts with one of the CO ligands to provide an anionic acylcarbonyl dinitrogen metallate [Cp(CO)(N2 )MnCOPh]Li (3) that is stable only below -40 °C. Full characterization of 3 (including single crystal X-ray diffraction) was performed. This complex decomposes quickly above -20 °C with N2 loss to give a phenylate complex [Cp(CO)2 MnPh]Li (2). The latter compound was erroneously formulated as an anionic diazenido compound [Cp(CO)2 MnN(Ph)=N]Li in earlier reports, ruling out the claimed and so-far unique behavior of the N2 ligand in 1. DFT calculations were run to explore both the hypothesized and the experimentally verified reactivity of 1 with PhLi and are fully consistent with our results. Direct attack of a nucleophile on metal-coordinated N2 remains to be demonstrated.
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Affiliation(s)
- Quentin Le Dé
- LCC-CNRS, Université de Toulouse, CNRS, UPS, 205 route de Narbonne, BP44099, 31077, Toulouse cedex 4, France
| | - Amal Bouammali
- LCC-CNRS, Université de Toulouse, CNRS, UPS, 205 route de Narbonne, BP44099, 31077, Toulouse cedex 4, France
| | - Christian Bijani
- LCC-CNRS, Université de Toulouse, CNRS, UPS, 205 route de Narbonne, BP44099, 31077, Toulouse cedex 4, France
| | - Laure Vendier
- LCC-CNRS, Université de Toulouse, CNRS, UPS, 205 route de Narbonne, BP44099, 31077, Toulouse cedex 4, France
| | - Iker Del Rosal
- LPCNO, CNRS & INSA, Université Paul Sabatier, 135 Avenue de Rangueil, 31077, Toulouse, France
| | - Dmitry A Valyaev
- LCC-CNRS, Université de Toulouse, CNRS, UPS, 205 route de Narbonne, BP44099, 31077, Toulouse cedex 4, France
| | - Chiara Dinoi
- LPCNO, CNRS & INSA, Université Paul Sabatier, 135 Avenue de Rangueil, 31077, Toulouse, France
| | - Antoine Simonneau
- LCC-CNRS, Université de Toulouse, CNRS, UPS, 205 route de Narbonne, BP44099, 31077, Toulouse cedex 4, France
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6
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Kapusterynska A, Bijani C, Paliwoda D, Vendier L, Bourdon V, Imbert N, Cojean S, Loiseau PM, Recchia D, Scoffone VC, Degiacomi G, Akhir A, Saxena D, Chopra S, Lubenets V, Baltas M. Mechanochemical Studies on Coupling of Hydrazines and Hydrazine Amides with Phenolic and Furanyl Aldehydes-Hydrazones with Antileishmanial and Antibacterial Activities. Molecules 2023; 28:5284. [PMID: 37446945 DOI: 10.3390/molecules28135284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Revised: 06/22/2023] [Accepted: 06/26/2023] [Indexed: 07/15/2023] Open
Abstract
Hydrazone compounds represent an important area of research that includes, among others, synthetic approaches and biological studies. A series of 17 hydrazones have been synthesized by mechanochemical means. The fragments chosen were phenolic and furanyl aldehydes coupled with 12 heterocyclic hydrazines or hydrazinamides. All compounds can be obtained quantitatively when operating on a planetary ball mill and a maximum reaction time of 180 min (6 cycles of 30 min each). Complete spectroscopic analyses of hydrazones revealed eight compounds (3-5, 8-11, 16) present in one geometric form, six compounds (1, 2, 13-15) present in two isomeric forms, and three compounds (6, 7, 12) where one rotation is restricted giving rise to two different forms. The single crystal X-ray structure of one of the hydrazones bearing the isoniazid fragment (8) indicates a crystal lattice consisting of two symmetry-independent molecules with different geometries. All compounds obtained were tested for anti-infectious and antibacterial activities. Four compounds (1, 3, 5 and 8) showed good activity against Mycobacterium tuberculosis, and one (7) was very potent against Staphylococcus aureus. Most interesting, this series of compounds displayed very promising antileishmanial activity. Among all, compound 9 exhibited an IC50 value of 0.3 µM on the Leishmania donovani intramacrophage amastigote in vitro model and a good selectivity index, better than miltefosine, making it worth evaluating in vivo.
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Affiliation(s)
- Anna Kapusterynska
- CNRS, LCC (Laboratoire de Chimie de Coordination), Université de Toulouse, UPS, INPT, Inserm ERL 1289, 205 Route de Narbonne, BP 44099, CEDEX 4, 31077 Toulouse, France
| | - Christian Bijani
- CNRS, LCC (Laboratoire de Chimie de Coordination), Université de Toulouse, UPS, INPT, Inserm ERL 1289, 205 Route de Narbonne, BP 44099, CEDEX 4, 31077 Toulouse, France
| | - Damian Paliwoda
- CNRS, LCC (Laboratoire de Chimie de Coordination), Université de Toulouse, UPS, INPT, Inserm ERL 1289, 205 Route de Narbonne, BP 44099, CEDEX 4, 31077 Toulouse, France
| | - Laure Vendier
- CNRS, LCC (Laboratoire de Chimie de Coordination), Université de Toulouse, UPS, INPT, Inserm ERL 1289, 205 Route de Narbonne, BP 44099, CEDEX 4, 31077 Toulouse, France
| | - Valérie Bourdon
- Technological and Expert Platform, Chemistry Institute of Toulouse ICT-UAR2599, University of Toulouse, CNRS, 118 Route de Narbonne, CEDEX 9, 31062 Toulouse, France
| | - Nicolas Imbert
- Antiparasite Chemotherapy, UMR 8076 CNRS BioCIS, Faculty of Pharmacy, University Paris-Saclay, 91400 Orsay, France
| | - Sandrine Cojean
- Antiparasite Chemotherapy, UMR 8076 CNRS BioCIS, Faculty of Pharmacy, University Paris-Saclay, 91400 Orsay, France
| | - Philippe Marie Loiseau
- Antiparasite Chemotherapy, UMR 8076 CNRS BioCIS, Faculty of Pharmacy, University Paris-Saclay, 91400 Orsay, France
| | - Deborah Recchia
- Department of Biology and Biotechnology "Lazzaro Spallanzani", University of Pavia, 27100 Pavia, Italy
| | - Viola Camilla Scoffone
- Department of Biology and Biotechnology "Lazzaro Spallanzani", University of Pavia, 27100 Pavia, Italy
| | - Giulia Degiacomi
- Department of Biology and Biotechnology "Lazzaro Spallanzani", University of Pavia, 27100 Pavia, Italy
| | - Abdul Akhir
- Division of Microbiology, CSIR-Central Drug Research Institute, Sector 10, Janakipuram Extension, Sitapur Road, Lucknow 226031, Uttar Pradesh, India
| | - Deepanshi Saxena
- Division of Microbiology, CSIR-Central Drug Research Institute, Sector 10, Janakipuram Extension, Sitapur Road, Lucknow 226031, Uttar Pradesh, India
| | - Sidharth Chopra
- Division of Microbiology, CSIR-Central Drug Research Institute, Sector 10, Janakipuram Extension, Sitapur Road, Lucknow 226031, Uttar Pradesh, India
| | - Vira Lubenets
- Department of Biologically Active Substances, Pharmacy and Biotechnology, Lviv Polytechnic National University, S. Bandery, 12, 79013 Lviv, Ukraine
| | - Michel Baltas
- CNRS, LCC (Laboratoire de Chimie de Coordination), Université de Toulouse, UPS, INPT, Inserm ERL 1289, 205 Route de Narbonne, BP 44099, CEDEX 4, 31077 Toulouse, France
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7
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Camy A, Vendier L, Bijani C, Fernández I, Bontemps S. Synthesis and Coordination of a Bisphosphine-[NHC-borane] Compound: A Ligand Framework for Bimetallic Structure Featuring a Boron-Bridging Moiety. Inorg Chem 2023. [PMID: 37232581 DOI: 10.1021/acs.inorgchem.3c00785] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
We report herein the synthesis of a bisphosphine-[NHC-BH3] compound and its coordination toward gold. The ligand is shown to support a bimetallic structure bisphosphine-[NHC-BH3](AuCl)2. The abstraction of one chloride from the gold metal center triggers the activation of a BH3 fragment, leading to the reductive elimination of H2 and the formation of a dicationic Au42+ complex featuring Au centers at the +0.5 oxidation state, via a (μ-H)Au2 intermediate, characterized in situ at 183 K. The reactivity of Au4 with thiophenol led to the reoxidation of the gold metal centers to a (μ-S(Ph))Au2 complex. In the different complexes, borane fragment was shown to bridge the Au2 core via weak interaction with [BH], [BCl], and [BH2] moieties.
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Affiliation(s)
- Aurèle Camy
- LCC-CNRS, Université de Toulouse, CNRS, 205 route de Narbonne, 31077 Toulouse Cedex 04, France
| | - Laure Vendier
- LCC-CNRS, Université de Toulouse, CNRS, 205 route de Narbonne, 31077 Toulouse Cedex 04, France
| | - Christian Bijani
- LCC-CNRS, Université de Toulouse, CNRS, 205 route de Narbonne, 31077 Toulouse Cedex 04, France
| | - Israel Fernández
- 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
| | - Sébastien Bontemps
- LCC-CNRS, Université de Toulouse, CNRS, 205 route de Narbonne, 31077 Toulouse Cedex 04, France
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8
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Coffinet A, Specklin D, Le Dé Q, Bennaamane S, Muñoz L, Vendier L, Clot E, Mézailles N, Simonneau A. Assessing Combinations of B(C 6 F 5 ) 3 and N 2 -Derived Molybdenum Nitrido Complexes for Heterolytic Bond Activation. Chemistry 2023; 29:e202203774. [PMID: 36805704 DOI: 10.1002/chem.202203774] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Revised: 02/10/2023] [Accepted: 02/20/2023] [Indexed: 02/22/2023]
Abstract
Two different dinitrogen-derived molybdenum nitrido complexes varying by their geometry, ligand spheres and oxidations states were shown to engage their N ligand in dative bonding with the strong Lewis acid B(C6 F5 )3 . The stable adducts were assessed for frustrated Lewis pair-type heterolytic E-H bond splitting of hydrosilanes (E=Si) and HB(C6 F5 )2 . Whereas Si-H bond activation was achieved, HB(C6 F5 )2 was shown to substitute B(C6 F5 )3 in a quantitative or equilibrated fashion, depending on the nature of the nitrido complex. No B-H bond splitting was observed. Thermodynamics of these reactions, computed by DFT, are in agreement with the experimental outcomes.
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Affiliation(s)
- Anaïs Coffinet
- LCC-CNRS, Université de Toulouse, CNRS, UPS, 205 route de Narbonne, BP44099, F-31077, Toulouse cedex 4, France
| | - David Specklin
- LCC-CNRS, Université de Toulouse, CNRS, UPS, 205 route de Narbonne, BP44099, F-31077, Toulouse cedex 4, France
| | - Quentin Le Dé
- LCC-CNRS, Université de Toulouse, CNRS, UPS, 205 route de Narbonne, BP44099, F-31077, Toulouse cedex 4, France
| | - Soukaina Bennaamane
- Laboratoire Hétérochimie Fondamentale et Appliquée, Université Paul Sabatier, CNRS, 118 Route de Narbonne, 31062, Toulouse, France
| | - Luna Muñoz
- LCC-CNRS, Université de Toulouse, CNRS, UPS, 205 route de Narbonne, BP44099, F-31077, Toulouse cedex 4, France
| | - Laure Vendier
- LCC-CNRS, Université de Toulouse, CNRS, UPS, 205 route de Narbonne, BP44099, F-31077, Toulouse cedex 4, France
| | - Eric Clot
- ICGM, Univ. Montpellier, CNRS, ENSCM, 34000, Montpellier, France
| | - Nicolas Mézailles
- Laboratoire Hétérochimie Fondamentale et Appliquée, Université Paul Sabatier, CNRS, 118 Route de Narbonne, 31062, Toulouse, France
| | - Antoine Simonneau
- LCC-CNRS, Université de Toulouse, CNRS, UPS, 205 route de Narbonne, BP44099, F-31077, Toulouse cedex 4, France
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9
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Dé QL, Orbay F, Vendier L, Simonneau A. Syntheses of N2-bridged heterobimetallic complexes, their structural and qualitative bonding analyses. J Organomet Chem 2022. [DOI: 10.1016/j.jorganchem.2022.122604] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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10
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Koumpoura C, Nguyen M, Bijani C, Vendier L, Salina EG, Buroni S, Degiacomi G, Cojean S, Loiseau PM, Benoit-Vical F, García-Sosa AT, Baltas M. Design of Anti-infectious Agents from Lawsone in a Three-Component Reaction with Aldehydes and Isocyanides. ACS Omega 2022; 7:35635-35655. [PMID: 36249398 PMCID: PMC9558256 DOI: 10.1021/acsomega.2c03421] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Accepted: 09/07/2022] [Indexed: 06/16/2023]
Abstract
The first effective synthetic approach to naphthofuroquinones via a reaction involving lawsone, various aldehydes, and three isocyanides under microwave irradiation afforded derivatives in moderate to good yields. In addition, for less-reactive aldehydes, two naphtho-enaminodione quinones were obtained for the first time, as result of condensation between lawsone and isocyanides. X-ray structure determination for 9 and 2D-NMR spectra of 28 confirmed the obtained structures. All compounds were evaluated for their anti-infectious activities against Plasmodium falciparum, Leishmania donovani, and Mycobacterium tuberculosis. Among the naphthofuroquinone series, 17 exhibited comparatively the best activity against P. falciparum (IC50 = 2.5 μM) and M. tuberculosis (MIC = 9 μM) with better (P. falciparum) or equivalent (M. tuberculosis) values to already-known naphthofuroquinone compounds. Among the two naphtho-enaminodione quinones, 28 exhibited a moderate activity against P. falciparum with a good selectivity index (SI > 36) while also a very high potency against L. donovani (IC50 = 3.5 μM and SI > 28), rendering it very competitive to the reference drug miltefosine. All compounds were studied through molecular modeling on their potential targets for P. falciparum, Pfbc1, and PfDHODH, where 17 showed the most favorable interactions.
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Affiliation(s)
- Christina
L. Koumpoura
- Laboratoire
de Chimie de Coordination du CNRS−UPR8241, Inserm ERL 1289
Team “New antiplasmodial molecules and pharmacological approaches”, 205 route de Narbonne, BP 44099, Toulouse Cedex 31077, France
| | - Michel Nguyen
- Laboratoire
de Chimie de Coordination du CNRS−UPR8241, Inserm ERL 1289
Team “New antiplasmodial molecules and pharmacological approaches”, 205 route de Narbonne, BP 44099, Toulouse Cedex 31077, France
| | - Christian Bijani
- Laboratoire
de Chimie de Coordination du CNRS−UPR8241, Inserm ERL 1289
Team “New antiplasmodial molecules and pharmacological approaches”, 205 route de Narbonne, BP 44099, Toulouse Cedex 31077, France
| | - Laure Vendier
- Laboratoire
de Chimie de Coordination du CNRS−UPR8241, Inserm ERL 1289
Team “New antiplasmodial molecules and pharmacological approaches”, 205 route de Narbonne, BP 44099, Toulouse Cedex 31077, France
| | - Elena G. Salina
- Bach
Institute of Biochemistry, Research Center
of Biotechnology of the Russian Academy of Sciences, Moscow 119071, Russia
| | - Silvia Buroni
- Department
of Biology and Biotechnology “Lazzaro Spallanzani”, University of Pavia, Pavia 27100, Italy
| | - Giulia Degiacomi
- Department
of Biology and Biotechnology “Lazzaro Spallanzani”, University of Pavia, Pavia 27100, Italy
| | - Sandrine Cojean
- Antiparasite
Chemotherapy, UMR 8076 CNRS BioCIS, Faculty of Pharmacy, University
Paris-Saclay, Châtenay-Malabry 92290, France
| | - Philippe M. Loiseau
- Antiparasite
Chemotherapy, UMR 8076 CNRS BioCIS, Faculty of Pharmacy, University
Paris-Saclay, Châtenay-Malabry 92290, France
| | - Françoise Benoit-Vical
- Laboratoire
de Chimie de Coordination du CNRS−UPR8241, Inserm ERL 1289
Team “New antiplasmodial molecules and pharmacological approaches”, 205 route de Narbonne, BP 44099, Toulouse Cedex 31077, France
| | - Alfonso T. García-Sosa
- Department
of Molecular Technology, Institute of Chemistry, University of Tartu, Ravila 14a, Tartu 50411, Estonia
| | - Michel Baltas
- Laboratoire
de Chimie de Coordination du CNRS−UPR8241, Inserm ERL 1289
Team “New antiplasmodial molecules and pharmacological approaches”, 205 route de Narbonne, BP 44099, Toulouse Cedex 31077, France
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11
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Paliwoda D, Vendier L, Nicolazzi W, Molnár G, Bousseksou A. Pressure Tuning of Coupled Structural and Spin State Transitions in the Molecular Complex [Fe(H 2B(pz) 2) 2(phen)]. Inorg Chem 2022; 61:15991-16002. [PMID: 36162137 DOI: 10.1021/acs.inorgchem.2c02286] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The large volume change, which accompanies the molecular spin crossover (SCO) phenomenon in some transition metal complexes, prompts frequently the coupling of the SCO with other instabilities. Understanding the driving mechanism(s) of such coupled phase transitions is not only important for fundamental reasons but also provides scope for the development of multifunctional materials. The general theoretical expectation is that the coupling has elastic origin, and the sequence of transitions can be tuned by an externally applied pressure, but dedicated experiments remain scarce. Here, we used high-pressure and low-temperature single-crystal X-ray diffraction to investigate the high-spin (HS) to low-spin (LS) transitions in the molecular complexes [FeII(H2B(pz)2)2(bipy)] and [FeII(H2B(pz)2)2(phen)]. In the bipyridine complex, the SCO is continuous and isostructural over the whole T, P-range (100-300 K, 0-2 GPa). In the phenanthroline derivative, however, the SCO is concomitant with a symmetry-breaking transition (C2/c to P1̅). Structural analysis reveals that the coupling between the two phenomena can be tuned by external pressure from a virtually simultaneous HSC2/c-LSP1̅ transition to the sequence of HSC2/c-LSC2/c-LSP1̅ transitions. The correlation of spontaneous strain and order parameter behaviors highlights that the "separated" transitions remain still connected via strain coupling, whereas the "simultaneous" transitions are partially split.
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Affiliation(s)
- Damian Paliwoda
- LCC, CNRS & Université de Toulouse (UPS, INP), 31077 Toulouse, France
| | - Laure Vendier
- LCC, CNRS & Université de Toulouse (UPS, INP), 31077 Toulouse, France
| | - William Nicolazzi
- LCC, CNRS & Université de Toulouse (UPS, INP), 31077 Toulouse, France
| | - Gábor Molnár
- LCC, CNRS & Université de Toulouse (UPS, INP), 31077 Toulouse, France
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12
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Paliwoda D, Vendier L, Molnár G, Bousseksou A. Decoupling spin-crossover and structural phase transition in iron(II) molecular complex. Acta Cryst Sect A 2022. [DOI: 10.1107/s2053273322091239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/19/2023]
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13
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Vendier L, Nguyen M, Meunier B, Robert A. Structural study of copper and zinc complexes of monoquinolines potentially active against Alzheimer's disease. Acta Cryst Sect A 2022. [DOI: 10.1107/s2053273322091124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/19/2023]
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14
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Ruamps M, Bastin S, Rechignat L, Sournia-Saquet A, Vendier L, Lugan N, Mouesca JM, Valyaev DA, Maurel V, César V. Redox-Switchable Behavior of Transition-Metal Complexes Supported by Amino-Decorated N-Heterocyclic Carbenes. Molecules 2022; 27:molecules27123776. [PMID: 35744903 PMCID: PMC9227367 DOI: 10.3390/molecules27123776] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Revised: 06/07/2022] [Accepted: 06/08/2022] [Indexed: 11/16/2022]
Abstract
The coordination chemistry of the N-heterocyclic carbene ligand IMes(NMe2)2, derived from the well-known IMes ligand by substitution of the carbenic heterocycle with two dimethylamino groups, was investigated with d6 [Mn(I), Fe(II)], d8 [Rh(I)], and d10 [Cu(I)] transition-metal centers. The redox behavior of the resulting organometallic complexes was studied through a combined experimental/theoretical study, involving electrochemistry, EPR spectroscopy, and DFT calculations. While the complexes [CuCl(IMes(NMe2)2)], [RhCl(COD)(IMes(NMe2)2)], and [FeCp(CO)2 (IMes(NMe2)2)](BF4) exhibit two oxidation waves, the first oxidation wave is fully reversible but only for the first complex the second oxidation wave is reversible. The mono-oxidation event for these complexes occurs on the NHC ligand, with a spin density mainly located on the diaminoethylene NHC-backbone, and has a dramatic effect on the donating properties of the NHC ligand. Conversely, as the Mn(I) center in the complex [MnCp(CO)2 ((IMes(NMe2)2)] is easily oxidizable, the latter complex is first oxidized on the metal center to form the corresponding cationic Mn(II) complex, and the NHC ligand is oxidized in a second reversible oxidation wave.
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Affiliation(s)
- Mirko Ruamps
- LCC-CNRS, Université de Toulouse, CNRS, 31077 Toulouse, France; (M.R.); (S.B.); (L.R.); (A.S.-S.); (L.V.); (N.L.)
| | - Stéphanie Bastin
- LCC-CNRS, Université de Toulouse, CNRS, 31077 Toulouse, France; (M.R.); (S.B.); (L.R.); (A.S.-S.); (L.V.); (N.L.)
| | - Lionel Rechignat
- LCC-CNRS, Université de Toulouse, CNRS, 31077 Toulouse, France; (M.R.); (S.B.); (L.R.); (A.S.-S.); (L.V.); (N.L.)
| | - Alix Sournia-Saquet
- LCC-CNRS, Université de Toulouse, CNRS, 31077 Toulouse, France; (M.R.); (S.B.); (L.R.); (A.S.-S.); (L.V.); (N.L.)
| | - Laure Vendier
- LCC-CNRS, Université de Toulouse, CNRS, 31077 Toulouse, France; (M.R.); (S.B.); (L.R.); (A.S.-S.); (L.V.); (N.L.)
| | - Noël Lugan
- LCC-CNRS, Université de Toulouse, CNRS, 31077 Toulouse, France; (M.R.); (S.B.); (L.R.); (A.S.-S.); (L.V.); (N.L.)
| | - Jean-Marie Mouesca
- Université Grenoble Alpes, CEA, CNRS, IRIG, SyMMES, 38000 Grenoble, France;
| | - Dmitry A. Valyaev
- LCC-CNRS, Université de Toulouse, CNRS, 31077 Toulouse, France; (M.R.); (S.B.); (L.R.); (A.S.-S.); (L.V.); (N.L.)
- Correspondence: (D.A.V.); (V.M.); (V.C.)
| | - Vincent Maurel
- Université Grenoble Alpes, CEA, CNRS, IRIG, SyMMES, 38000 Grenoble, France;
- Correspondence: (D.A.V.); (V.M.); (V.C.)
| | - Vincent César
- LCC-CNRS, Université de Toulouse, CNRS, 31077 Toulouse, France; (M.R.); (S.B.); (L.R.); (A.S.-S.); (L.V.); (N.L.)
- Correspondence: (D.A.V.); (V.M.); (V.C.)
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15
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Puig E, Verron R, Kechaou-Perrot M, Vendier L, Gornitzka H, Miqueu K, Sotiropoulos JM, Fischmeister C, Sutra P, Igau A. Shvo-Type Metal–Ligand Cooperative Catalysts: Tethered η 5-Oxocyclohexadienyl Ruthenium Complexes. Organometallics 2022. [DOI: 10.1021/acs.organomet.2c00123] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Emmanuel Puig
- CNRS, LCC (Laboratoire de Chimie de Coordination), 205 Route de Narbonne, BP 44099, Toulouse Cedex 4 F-31077, France
- Université de Toulouse, UPS, INPT, Toulouse Cedex 4 F-31077, France
| | - Raphaël Verron
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes)─UMR 6226, Rennes F-35042, France
| | - Manel Kechaou-Perrot
- CNRS, LCC (Laboratoire de Chimie de Coordination), 205 Route de Narbonne, BP 44099, Toulouse Cedex 4 F-31077, France
- Université de Toulouse, UPS, INPT, Toulouse Cedex 4 F-31077, France
| | - Laure Vendier
- CNRS, LCC (Laboratoire de Chimie de Coordination), 205 Route de Narbonne, BP 44099, Toulouse Cedex 4 F-31077, France
- Université de Toulouse, UPS, INPT, Toulouse Cedex 4 F-31077, France
| | - Heinz Gornitzka
- CNRS, LCC (Laboratoire de Chimie de Coordination), 205 Route de Narbonne, BP 44099, Toulouse Cedex 4 F-31077, France
- Université de Toulouse, UPS, INPT, Toulouse Cedex 4 F-31077, France
| | - Karinne Miqueu
- CNRS/Université de Pau & des Pays de l’Adour, E2S-UPPA, Institut des Sciences Analytiques et de Physico-Chimie pour l’Environnement et les Matériaux (IPREM), UMR CNRS 5254, 2 Avenue du Président P. Angot, Pau 64053, Cedex 09, France
| | - Jean-Marc Sotiropoulos
- CNRS/Université de Pau & des Pays de l’Adour, E2S-UPPA, Institut des Sciences Analytiques et de Physico-Chimie pour l’Environnement et les Matériaux (IPREM), UMR CNRS 5254, 2 Avenue du Président P. Angot, Pau 64053, Cedex 09, France
| | - Cédric Fischmeister
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes)─UMR 6226, Rennes F-35042, France
| | - Pierre Sutra
- CNRS, LCC (Laboratoire de Chimie de Coordination), 205 Route de Narbonne, BP 44099, Toulouse Cedex 4 F-31077, France
- Université de Toulouse, UPS, INPT, Toulouse Cedex 4 F-31077, France
| | - Alain Igau
- CNRS, LCC (Laboratoire de Chimie de Coordination), 205 Route de Narbonne, BP 44099, Toulouse Cedex 4 F-31077, France
- Université de Toulouse, UPS, INPT, Toulouse Cedex 4 F-31077, France
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16
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Pallova L, Abella L, Jean M, Vanthuyne N, Barthes C, Vendier L, Autschbach J, Crassous J, Bastin S, César V. Helical Chiral N-Heterocyclic Carbene Ligands in Enantioselective Gold Catalysis. Chemistry 2022; 28:e202200166. [PMID: 35143078 DOI: 10.1002/chem.202200166] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Indexed: 12/29/2022]
Abstract
The first chiral helicene-NHC gold(I) complexes efficient in enantioselective catalysis were prepared. The L-shaped chiral ligand is composed of an imidazo[1,5-a]pyridin-3-ylidene (IPy) scaffold laterally substituted by a configurationally stable [5]-helicenoid unit. The chiral information was introduced in a key post-functionalization step of a NHC-gold(I) complex bearing a symmetrical anionic fluoreno[5]helicene substituent, leading to a racemic mixture of complexes featuring three correlated elements of chirality, namely central, axial and helical chirality. After HPLC enantiomeric resolution, X-ray crystallography and theoretical calculations enabled structural and stereochemical characterization of these configurationally stable NHC-gold(I) complexes. The high potential in asymmetric catalysis is demonstrated in the benchmark cycloisomerization of N-tethered 1,6-enynes with up to 95 : 5 er.
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Affiliation(s)
- Lenka Pallova
- LCC-CNRS, Université de Toulouse, CNRS, Toulouse, France
| | - Laura Abella
- Department of chemistry, University at Buffalo-State University of New York, Buffalo, NY 14260, USA
| | - Marion Jean
- Aix Marseille university, CNRS, Centrale Marseille, Ism2, Marseille, France
| | - Nicolas Vanthuyne
- Aix Marseille university, CNRS, Centrale Marseille, Ism2, Marseille, France
| | - Cécile Barthes
- LCC-CNRS, Université de Toulouse, CNRS, Toulouse, France
| | - Laure Vendier
- LCC-CNRS, Université de Toulouse, CNRS, Toulouse, France
| | - Jochen Autschbach
- Department of chemistry, University at Buffalo-State University of New York, Buffalo, NY 14260, USA
| | - Jeanne Crassous
- Institut des Sciences Chimiques de Rennes, UMR 6226, Institut de Physique de Rennes, UMR 6251, Campus de Beaulieu CNRS-Université de Rennes 1, 35042, Rennes Cedex, France
| | | | - Vincent César
- LCC-CNRS, Université de Toulouse, CNRS, Toulouse, France
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17
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Li Y, Nguyen M, Vendier L, Robert A, Liu Y, Meunier B. X-Ray diffraction structure of Cu(II) and Zn(II) complexes of 8-aminoquinoline derivatives (TDMQ), related to the activity of these chelators as potential drugs against Alzheimer's disease. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2021.132078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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18
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Costes JP, Duhayon C, Vendier L, Wernsdorfer W. Structural determinations and magnetic properties of a "chiral at metal" complex and its resulting [Cu-Ln] 2 compounds. Dalton Trans 2022; 51:2805-2814. [PMID: 35088784 DOI: 10.1039/d1dt04249a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
A chiral trianionic ligand possessing one amide, one imine, two phenol functions and one asymmetric carbon atom into its diamino chain reacts with CuII ions to yield anionic [LCu]- units that crystallize in a non-centrosymmetric space group as infinite 1D zig-zag chains in which a transmission of chirality to the CuII ion is effective. The distorted square planar environment of the CuII ion is large enough to induce the presence of a stereogenic CuII centre. Further reaction with LnIII ions in presence of ancillary ligands does not preserve such an arrangement but yields a tetranuclear complex made of two [LCu-Ln] units in a head-to-tail position. The tetranuclear [LCu-Ln]2 complexes made with the racemic and chiral LCu units crystallize in different space groups, so that racemization does not occur. The structural determinations confirm that a symmetry centre is present in the two structures, except for the methyl groups linked to the chiral carbon atoms, which appear as disordered in the (S-S) tetranuclear entity. Such an arrangement implies a conformation change of the diamino chain linked to the CuII ion in one [LCu-Ln] unit of the (S-S) entity, and cancels any chirality contribution of the CuII ions, as in the meso compound. Ferromagnetic Cu-Ln interactions, resulting from an alternate distribution of the CuII and LnIII ions, are the only ones to be active. Eventually the micro-Squid studies confirm that the hysteresis loops of the corresponding racemate and chiral tetranuclear [LCu-Dy]2 entities are slightly different.
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Affiliation(s)
- Jean-Pierre Costes
- Laboratoire de Chimie de Coordination du CNRS, 205, route de Narbonne, BP 44099, F-31077 Toulouse Cedex 4, France. .,Université de Toulouse, UPS, INPT, F-31077 Toulouse Cedex 4, France
| | - Carine Duhayon
- Laboratoire de Chimie de Coordination du CNRS, 205, route de Narbonne, BP 44099, F-31077 Toulouse Cedex 4, France. .,Université de Toulouse, UPS, INPT, F-31077 Toulouse Cedex 4, France
| | - Laure Vendier
- Laboratoire de Chimie de Coordination du CNRS, 205, route de Narbonne, BP 44099, F-31077 Toulouse Cedex 4, France. .,Université de Toulouse, UPS, INPT, F-31077 Toulouse Cedex 4, France
| | - Wolfgang Wernsdorfer
- Institute of Nanotechnology (INT), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, D-76344 Eggenstein-Leopoldshafen, Germany.,Institut Néel, CNRS/Université Grenoble Alpes, 25 rue des Martyrs, F-38000 Grenoble, France
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19
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Fajardo AM, Queyraiux N, Camy A, Vendier L, Grellier M, Del Rosal I, Maron L, Bontemps S. A masked form of an O-borylated Breslow intermediate for the diastereoselective FLP-type activation of aldehydes. Chemistry 2021; 28:e202104122. [PMID: 34964516 DOI: 10.1002/chem.202104122] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Indexed: 11/07/2022]
Abstract
Breslow intermediates are very often elusive species whose application in Frustrated Lewis Pair chemistry is unprecedented. We describe herein the use of a masked form of an O-Borylated Breslow (OBB) intermediate that performs FLP-type activation of the carbonyl function of five different benzaldehyde derivatives with complete diastereoselectivity. The resulting compounds are characterised in solution by NMR spectroscopy (compounds 4 - 8 ) and in solid state by X-Ray diffraction analysis (compounds 4 - 6 ). A combined kinetic and theoretical investigation reveals the associative nature of the rate determining step and suggests that the OBB intermediate part is never released during the whole process.
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Affiliation(s)
| | | | - Aurèle Camy
- Laboratoire de Chimie de Coordination, chemistry, FRANCE
| | - Laure Vendier
- Laboratoire de Chimie de Coordination, chemistry, FRANCE
| | - Mary Grellier
- Laboratoire de Chimie de Coordination, chemistry, FRANCE
| | - Iker Del Rosal
- LPCNO: Laboratoire de physique et chimie des nano-objets, chemistry, FRANCE
| | - Laurent Maron
- LPCNO: Laboratoire de physique et chimie des nano-objets, chemistry, FRANCE
| | - Sébastien Bontemps
- Centre National de la Recherche Scientifique, Laboratoire de Chimie de Coordination, 205 route de Narbonne, 31077 cedex 04, toulouse, FRANCE
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20
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Bouammali A, Coffinet A, Vendier L, Simonneau A. Dinitrogen-derived (diarylboryl)diazenido complexes with differing coordination to the thallium cation. Dalton Trans 2021; 51:10697-10701. [PMID: 34908087 DOI: 10.1039/d1dt03905a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
To prepare N2-derived cationic boryldiazenido-tungsten complexes as models of semimetallic metal-borinium frustrated Lewis pairs activating N2, we have attempted halide abstraction from trans-(diarylboryl)diazenido-halo-tungsten complexes. Reactions with Tl+ led to adducts in which coordination of the cation differs depending on the boryldiazenide substituents and the ancillary ligand. Chloride scavenging was not observed.
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Affiliation(s)
- Amal Bouammali
- LCC-CNRS, Université de Toulouse, CNRS, UPS, 205 route de Narbonne, BP44099, F-31077 Toulouse cedex 4, France.
| | - Anaïs Coffinet
- LCC-CNRS, Université de Toulouse, CNRS, UPS, 205 route de Narbonne, BP44099, F-31077 Toulouse cedex 4, France.
| | - Laure Vendier
- LCC-CNRS, Université de Toulouse, CNRS, UPS, 205 route de Narbonne, BP44099, F-31077 Toulouse cedex 4, France.
| | - Antoine Simonneau
- LCC-CNRS, Université de Toulouse, CNRS, UPS, 205 route de Narbonne, BP44099, F-31077 Toulouse cedex 4, France.
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21
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Palucci B, Zanchin G, Ricci G, Vendier L, Lorber C, Leone G. Vanadium-Catalyzed Terpolymerization of α,ω-Dienes with Ethylene and Cyclic Olefins: Ready Access to Polar-Functionalized Polyolefins. Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c02142] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Benedetta Palucci
- Consiglio Nazionale delle Ricerche-Istituto di Scienze e Tecnologie Chimiche “Giulio Natta” (SCITEC), via A. Corti 12, Milano I-20133, Italy
| | - Giorgia Zanchin
- Consiglio Nazionale delle Ricerche-Istituto di Scienze e Tecnologie Chimiche “Giulio Natta” (SCITEC), via A. Corti 12, Milano I-20133, Italy
| | - Giovanni Ricci
- Consiglio Nazionale delle Ricerche-Istituto di Scienze e Tecnologie Chimiche “Giulio Natta” (SCITEC), via A. Corti 12, Milano I-20133, Italy
| | - Laure Vendier
- LCC (Laboratoire de Chimie de Coordination), Centre national de la recherche scientifique, 205 route de Narbonne, BP44099, Toulouse 31077, France
- Université de Toulouse, UPS, INPT, LCC, Toulouse 31077, France
| | - Christian Lorber
- LCC (Laboratoire de Chimie de Coordination), Centre national de la recherche scientifique, 205 route de Narbonne, BP44099, Toulouse 31077, France
- Université de Toulouse, UPS, INPT, LCC, Toulouse 31077, France
| | - Giuseppe Leone
- Consiglio Nazionale delle Ricerche-Istituto di Scienze e Tecnologie Chimiche “Giulio Natta” (SCITEC), via A. Corti 12, Milano I-20133, Italy
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22
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Desmons S, Grayson-Steel K, Nuñez-Dallos N, Vendier L, Hurtado J, Clapés P, Fauré R, Dumon C, Bontemps S. Enantioselective Reductive Oligomerization of Carbon Dioxide into l-Erythrulose via a Chemoenzymatic Catalysis. J Am Chem Soc 2021; 143:16274-16283. [PMID: 34546049 DOI: 10.1021/jacs.1c07872] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
A cell-free enantioselective transformation of the carbon atom of CO2 has never been reported. In the urgent context of transforming CO2 into products of high value, the enantiocontrolled synthesis of chiral compounds from CO2 would be highly desirable. Using an original hybrid chemoenzymatic catalytic process, we report herein the reductive oligomerization of CO2 into C3 (dihydroxyacetone, DHA) and C4 (l-erythrulose) carbohydrates, with perfect enantioselectivity of the latter chiral product. This was achieved with the key intermediacy of formaldehyde. CO2 is first reduced selectively by 4e- by an iron-catalyzed hydroboration reaction, leading to the isolation and complete characterization of a new bis(boryl)acetal compound derived from dimesitylborane. In an aqueous buffer solution at 30 °C, this compound readily releases formaldehyde, which is then involved in selective enzymatic transformations, giving rise either (i) to DHA using a formolase (FLS) catalysis or (ii) to l-erythrulose with a cascade reaction combining FLS and d-fructose-6-phosphate aldolase (FSA) A129S variant. Finally, the nature of the synthesized products is noteworthy, since carbohydrates are of high interest for the chemical and pharmaceutical industries. The present results prove that the cell-free de novo synthesis of carbohydrates from CO2 as a sustainable carbon source is a possible alternative pathway in addition to the intensely studied biomass extraction and de novo syntheses from fossil resources.
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Affiliation(s)
- Sarah Desmons
- LCC-CNRS, Université de Toulouse, CNRS, F-31077 Toulouse Cedex 4, France.,TBI, Université de Toulouse, CNRS, INRAE, INSA, 31077 Toulouse, France
| | | | - Nelson Nuñez-Dallos
- LCC-CNRS, Université de Toulouse, CNRS, F-31077 Toulouse Cedex 4, France.,Department of Chemistry, Universidad de los Andes, Carrera 1 No. 18A-12, 111711 Bogotá, Colombia
| | - Laure Vendier
- LCC-CNRS, Université de Toulouse, CNRS, F-31077 Toulouse Cedex 4, France
| | - John Hurtado
- Department of Chemistry, Universidad de los Andes, Carrera 1 No. 18A-12, 111711 Bogotá, Colombia
| | - Pere Clapés
- Biological Chemistry Department, Institute for Advanced Chemistry of Catalonia, IQAC-CSIC, Jordi Girona 18-26, 08034 Barcelona, Spain
| | - Régis Fauré
- TBI, Université de Toulouse, CNRS, INRAE, INSA, 31077 Toulouse, France
| | - Claire Dumon
- TBI, Université de Toulouse, CNRS, INRAE, INSA, 31077 Toulouse, France
| | - Sébastien Bontemps
- LCC-CNRS, Université de Toulouse, CNRS, F-31077 Toulouse Cedex 4, France
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23
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Benaissa I, Gajda K, Vendier L, Lugan N, Kajetanowicz A, Grela K, Michelet V, César V, Bastin S. An Anionic, Chelating C(sp 3)/NHC ligand from the Combination of an N-heterobicyclic Carbene and Barbituric Heterocycle. Organometallics 2021. [DOI: 10.1021/acs.organomet.1c00458] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Idir Benaissa
- LCC-CNRS, Université de Toulouse, CNRS, 205 route de Narbonne, 31077 Toulouse Cedex 4, France
| | - Katarzyna Gajda
- LCC-CNRS, Université de Toulouse, CNRS, 205 route de Narbonne, 31077 Toulouse Cedex 4, France
- Faculty of Chemistry, Biological and Chemical Research Centre, University of Warsaw, Żwirki i Wigury 101, 02-089 Warsaw, Poland
| | - Laure Vendier
- LCC-CNRS, Université de Toulouse, CNRS, 205 route de Narbonne, 31077 Toulouse Cedex 4, France
| | - Noël Lugan
- LCC-CNRS, Université de Toulouse, CNRS, 205 route de Narbonne, 31077 Toulouse Cedex 4, France
| | - Anna Kajetanowicz
- Faculty of Chemistry, Biological and Chemical Research Centre, University of Warsaw, Żwirki i Wigury 101, 02-089 Warsaw, Poland
| | - Karol Grela
- Faculty of Chemistry, Biological and Chemical Research Centre, University of Warsaw, Żwirki i Wigury 101, 02-089 Warsaw, Poland
| | - Véronique Michelet
- University Côte d’Azur, Institut de Chimie de Nice, UMR 7272 CNRS Parc Valrose, Faculté des Sciences, 06100 Nice, France
| | - Vincent César
- LCC-CNRS, Université de Toulouse, CNRS, 205 route de Narbonne, 31077 Toulouse Cedex 4, France
| | - Stéphanie Bastin
- LCC-CNRS, Université de Toulouse, CNRS, 205 route de Narbonne, 31077 Toulouse Cedex 4, France
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24
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Ayyappan R, Saha K, Grellier M, Clot E, Vendier L, Ghosh S, Sabo-Etienne S, Bontemps S. Impact of the Alkali Metal on the Structural and Dynamic Properties of the Anionic Pentahydride Ruthenium Complexes [M(THF) x][RuH 5(PCy 3) 2] (M = Li, Na, K). Organometallics 2021. [DOI: 10.1021/acs.organomet.1c00384] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Ramaraj Ayyappan
- LCC−CNRS, Université de Toulouse, CNRS, F-31077 CEDEX 4 Toulouse, France
| | - Koushik Saha
- LCC−CNRS, Université de Toulouse, CNRS, F-31077 CEDEX 4 Toulouse, France
- Department of Chemistry, Indian Institute of Technology Madras, Chennai, 600036, India
| | - Mary Grellier
- LCC−CNRS, Université de Toulouse, CNRS, F-31077 CEDEX 4 Toulouse, France
| | - Eric Clot
- ICGM, Univ Montpellier, CNRS, ENSCM, 34000 Montpellier, France
| | - Laure Vendier
- LCC−CNRS, Université de Toulouse, CNRS, F-31077 CEDEX 4 Toulouse, France
| | - Sundargopal Ghosh
- Department of Chemistry, Indian Institute of Technology Madras, Chennai, 600036, India
| | | | - Sébastien Bontemps
- LCC−CNRS, Université de Toulouse, CNRS, F-31077 CEDEX 4 Toulouse, France
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25
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Garcia OJ, Vendier L, Etienne M, Gwaltney S, Ressler A, Muñoz-Hernández MÁ. Cyclooctadiene Rh(I) Bis- and Tris(pyrazolyl)aluminate Complexes and Their Catalytic Activity on the Polymerization of Phenylacetylene. Inorg Chem 2021; 60:10757-10763. [PMID: 34227812 DOI: 10.1021/acs.inorgchem.1c01434] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
In this work, we report the transfer of alkyl bis- and tris(pyrazolyl)aluminates metalloligands to an electron-rich organotransition metal center. The 16-electron heterobimetallic complexes of rhodium [Rh(COD){Al(Ph2pz)2Me2}] (3) and [Rh(COD){Al(Ph2pz)3Me}] (4) were obtained by metathesis reaction of the sodium bis- (1) and tris(pyrazolyl)aluminate (2) with [RhCl(COD)]2. For 3, 1H and 13C NMR in solution along with DFT calculations are consistent with a κ2-coordination mode of the bis(pyrazolyl)aluminate to a square-planar Rh(I) center. The X-ray structure of 4 shows a similar κ2-coordination mode of the tris(pyrazolyl)aluminate to Rh(I) with a pendant pyrazolyl moiety. The attempted synthesis of aluminate-rhodium complexes with R = CF3, tBu on the pyrazolate ring afforded [Rh(R2pz)(COD)]2 and [R2pzAlMe2]2. Complexes 3 and 4 were investigated as homogeneous catalysts in the polymerization of phenylacetylene (PA). Both complexes showed enhanced catalytic activity compared to analogous rhodium poly(pyrazolyl)borates. Optimized gas-phase DFT geometries of 3, 4, [Rh(COD){B(Ph2pz)2Me2}], and [Rh(COD){B(Ph2pz)3Me}] were used to compare bite angles, while DFT geometries of 3-CO, 4-CO, [Rh(CO)2{B(Ph2pz)2Me2}], and [Rh(CO)2{B(Ph2pz)3Me}] were employed to probe the electronic situation of the rhodium center through IR CO stretching modes. The wider bite angles and the less electron-rich rhodium center of the poly(pyrazolyl)aluminates compared with their borate analogues could be implicated in the better performance of the active catalytic species during polymerization of PA.
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Affiliation(s)
- Omar J Garcia
- Department of Chemistry, Mississippi State University, Box 9573, Mississippi State, Mississippi 39762, United States
| | - Laure Vendier
- LCC-CNRS, Université de Toulouse, CNRS, UPS, 205 route de Narbonne, 31077 Toulouse Cedex 4, France
| | - Michel Etienne
- LCC-CNRS, Université de Toulouse, CNRS, UPS, 205 route de Narbonne, 31077 Toulouse Cedex 4, France
| | - Steven Gwaltney
- Department of Chemistry, Mississippi State University, Box 9573, Mississippi State, Mississippi 39762, United States
| | - Abigail Ressler
- Department of Chemistry, Mississippi State University, Box 9573, Mississippi State, Mississippi 39762, United States
| | - Miguel-Ángel Muñoz-Hernández
- Department of Chemistry, Mississippi State University, Box 9573, Mississippi State, Mississippi 39762, United States
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26
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Pallova L, Gauthier ES, Abella L, Jean M, Vanthuyne N, Dorcet V, Vendier L, Autschbach J, Crassous J, Bastin S, César V. Synthesis and Properties of Partially Saturated Fluorenyl-Derived [n]Helicenes Featuring an Overcrowded Alkene. Chemistry 2021; 27:7722-7730. [PMID: 33780559 DOI: 10.1002/chem.202100150] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Indexed: 01/25/2023]
Abstract
The straightforward, multigram-scale synthesis of the partially saturated H6 -fluoreno[n]helicenes (n=5 or 7) featuring a central, overcrowded alkene is described. The key cyclization step was based on an intramolecular McMurry reaction from the corresponding 1,5-diketones. Chiral stationary phase HPLC analysis and isomer separation indicate that each helicenic compound is constituted of three diastereoisomers at room temperature, i. e. the configurationally stable (R,R,P)/(S,S,M) pair of enantiomers and an apparently achiral compound resulting from the rapid interconversion between the (R,S,P) and (S,R,M) enantiomers. The partially saturated H6 -fluoreno[n]helicenes are oxidatively aromatized to give an efficient access to the corresponding fluoreno[n]helicenes. The chiroptical properties (vibrational and electronic circular dichroism) of the chiral, enantiopure compounds have been measured and analyzed by quantum-chemical calculations, confirming their helicoidal nature.
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Affiliation(s)
- Lenka Pallova
- LCC-CNRS, Université de Toulouse, CNRS, 31077, Toulouse, France
| | - Etienne S Gauthier
- Institut des Sciences Chimiques de Rennes, UMR 6226, Institut de Physique de Rennes, UMR 6251, Campus de Beaulieu, CNRS-Université de Rennes 1, 35042, Rennes Cedex, France
| | - Laura Abella
- Department of chemistry, University at Buffalo - State University of New York, Buffalo, NY 14260, USA
| | - Marion Jean
- Aix Marseille university, CNRS, Centrale Marseille, Ism2, 13397, Marseille, France
| | - Nicolas Vanthuyne
- Aix Marseille university, CNRS, Centrale Marseille, Ism2, 13397, Marseille, France
| | - Vincent Dorcet
- Institut des Sciences Chimiques de Rennes, UMR 6226, Institut de Physique de Rennes, UMR 6251, Campus de Beaulieu, CNRS-Université de Rennes 1, 35042, Rennes Cedex, France
| | - Laure Vendier
- LCC-CNRS, Université de Toulouse, CNRS, 31077, Toulouse, France
| | - Jochen Autschbach
- Department of chemistry, University at Buffalo - State University of New York, Buffalo, NY 14260, USA
| | - Jeanne Crassous
- Institut des Sciences Chimiques de Rennes, UMR 6226, Institut de Physique de Rennes, UMR 6251, Campus de Beaulieu, CNRS-Université de Rennes 1, 35042, Rennes Cedex, France
| | | | - Vincent César
- LCC-CNRS, Université de Toulouse, CNRS, 31077, Toulouse, France
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27
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Specklin D, Coffinet A, Vendier L, del Rosal I, Dinoi C, Simonneau A. Synthesis, Characterization, and Comparative Theoretical Investigation of Dinitrogen-Bridged Group 6-Gold Heterobimetallic Complexes. Inorg Chem 2021; 60:5545-5562. [PMID: 33724789 PMCID: PMC8058778 DOI: 10.1021/acs.inorgchem.0c03271] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Indexed: 01/21/2023]
Abstract
We have prepared and characterized a series of unprecedented group 6-group 11, N2-bridged, heterobimetallic [ML4(η1-N2)(μ-η1:η1-N2)Au(NHC)]+ complexes (M = Mo, W, L2 = diphosphine) by treatment of trans-[ML4(N2)2] with a cationic gold(I) complex [Au(NHC)]+. The adducts are very labile in solution and in the solid, especially in the case of molybdenum, and decomposition pathways are likely initiated by electron transfers from the zerovalent group 6 atom to gold. Spectroscopic and structural parameters point to the fact that the gold adducts are very similar to Lewis pairs formed out of strong main-group Lewis acids (LA) and low-valent, end-on dinitrogen complexes, with a bent M-N-N-Au motif. To verify how far the analogy goes, we computed the electronic structures of [W(depe)2(η1-N2)(μ-η1:η1-N2)AuNHC]+ (10W+) and [W(depe)2(η1-N2)(μ-η1:η1-N2)B(C6F5)3] (11W). A careful analysis of the frontier orbitals of both compounds shows that a filled orbital resulting from the combination of the π* orbital of the bridging N2 with a d orbital of the group 6 metal overlaps in 10W+ with an empty sd hybrid orbital at gold, whereas in 11W with an sp3 hybrid orbital at boron. The bent N-N-LA arrangement maximizes these interactions, providing a similar level of N2 "push-pull" activation in the two compounds. In the gold case, the HOMO-2 orbital is further delocalized to the empty carbenic p orbital, and an NBO analysis suggests an important electrostatic component in the μ-N2-[Au(NHC)]+ bond.
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Affiliation(s)
- David Specklin
- LCC−CNRS,
Université de Toulouse, CNRS, UPS, 205 route de Narbonne, BP44099, F-31077 Toulouse cedex 4, France
| | - Anaïs Coffinet
- LCC−CNRS,
Université de Toulouse, CNRS, UPS, 205 route de Narbonne, BP44099, F-31077 Toulouse cedex 4, France
| | - Laure Vendier
- LCC−CNRS,
Université de Toulouse, CNRS, UPS, 205 route de Narbonne, BP44099, F-31077 Toulouse cedex 4, France
| | - Iker del Rosal
- LPCNO,
CNRS, and INSA, Université Paul Sabatier, 135 Avenue de Rangueil, 31077 Toulouse, France
| | - Chiara Dinoi
- LPCNO,
CNRS, and INSA, Université Paul Sabatier, 135 Avenue de Rangueil, 31077 Toulouse, France
| | - Antoine Simonneau
- LCC−CNRS,
Université de Toulouse, CNRS, UPS, 205 route de Narbonne, BP44099, F-31077 Toulouse cedex 4, France
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28
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Queyriaux N, Esmieu C, Gupta AK, Vendier L, Ott S, Orio M, Hammarström L. Electrochemical, Spectroscopic, and Computational Investigation of a Series of Polypyridyl Ruthenium(II) Complexes: Characterization of Reduced States. Eur J Inorg Chem 2021. [DOI: 10.1002/ejic.202001165] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Nicolas Queyriaux
- Department of Chemistry Ångström Laboratories Uppsala University, Box 523, 751 20 Uppsala Sweden
- CNRS, LCC (Laboratoire de Chimie de Coordination) 31077 Toulouse France
| | - Charlène Esmieu
- Department of Chemistry Ångström Laboratories Uppsala University, Box 523, 751 20 Uppsala Sweden
| | - Arvind K. Gupta
- Department of Chemistry Ångström Laboratories Uppsala University, Box 523, 751 20 Uppsala Sweden
| | - Laure Vendier
- CNRS, LCC (Laboratoire de Chimie de Coordination) 31077 Toulouse France
| | - Sascha Ott
- Department of Chemistry Ångström Laboratories Uppsala University, Box 523, 751 20 Uppsala Sweden
| | - Maylis Orio
- CNRS Centrale Marseille, iSm2 Aix Marseille University 13397 Marseille France
| | - Leif Hammarström
- Department of Chemistry Ångström Laboratories Uppsala University, Box 523, 751 20 Uppsala Sweden
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29
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Ayyappan R, Coppel Y, Vendier L, Ghosh S, Sabo-Etienne S, Bontemps S. Synthesis and reactivity of phosphine borohydride compounds. Chem Commun (Camb) 2021; 57:375-378. [PMID: 33325466 DOI: 10.1039/d0cc07072f] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Four lithium phosphine borohydride compounds featuring phenyl and naphthyl linkers have been synthesized. In-depth NMR analysis affords evidence for non-bonded through space P-B coupling. Reactivity towards CO2 leads to LiH transfer and to the quantitative formation of the corresponding ambiphilic phosphine-borane products.
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Affiliation(s)
- Ramaraj Ayyappan
- LCC-CNRS, Université de Toulouse, CNRS, 205 route de Narbonne, 31077 Toulouse Cedex 04, France.
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30
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Abstract
The borylation of ligated dinitrogen by 1,3-B-H bond addition over a W-N[triple bond, length as m-dash]N unit using various hydroboranes has been examined. In a previous study, we have shown that Piers' borane (1) reacted with the tungsten dinitrogen complex 2 to afford a boryldiazenido-hydrido-tungsten species. The ease and mildness of this reaction have encouraged us to extend its scope, with the working hypothesis that 1 could potentially catalyse the 1,3-B-H bond addition of other hydroboranes. Under productive reaction conditions, dicyclohexylborane (HBCy2) and diisopinocampheylborane (HBIpc2) underwent retro-hydroboration to give cyclohexylborane (H2BCy) or isopinocampheylborane (H2BIpc), respectively; these monoalkylboranes act as N2-borylating agents in the presence of a catalytic amount of 1. Under similar conditions, 9-borabicyclononane (9-BBN) slowly adds over the W-N[triple bond, length as m-dash]N unit without rearrangement to a monoalkylborane. Catecholborane (HBcat) undergoes the 1,3-B-H bond addition without the need for a catalyst. We were not able to build more than one covalent B-N bond between the terminal N of the N2 ligand and the boron reagent with this methodology.
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Affiliation(s)
- Anaïs Coffinet
- LCC-CNRS, Université de Toulouse, CNRS, UPS, 205 route de Narbonne, BP44099, F-31077 Toulouse cedex 4, France.
| | - Dan Zhang
- LCC-CNRS, Université de Toulouse, CNRS, UPS, 205 route de Narbonne, BP44099, F-31077 Toulouse cedex 4, France.
| | - Laure Vendier
- LCC-CNRS, Université de Toulouse, CNRS, UPS, 205 route de Narbonne, BP44099, F-31077 Toulouse cedex 4, France.
| | - Sébastien Bontemps
- LCC-CNRS, Université de Toulouse, CNRS, UPS, 205 route de Narbonne, BP44099, F-31077 Toulouse cedex 4, France.
| | - Antoine Simonneau
- LCC-CNRS, Université de Toulouse, CNRS, UPS, 205 route de Narbonne, BP44099, F-31077 Toulouse cedex 4, France.
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31
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Azouzi K, Bruneau-Voisine A, Vendier L, Sortais JB, Bastin S. Asymmetric transfer hydrogenation of ketones promoted by manganese(I) pre-catalysts supported by bidentate aminophosphines. CATAL COMMUN 2020. [DOI: 10.1016/j.catcom.2020.106040] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
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32
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Romero N, Dufrois Q, Crespo N, Pujol A, Vendier L, Etienne M. Regioselective C–F Bond Activation/C–C Bond Formation between Fluoropyridines and Cyclopropyl Groups at Zirconium. Organometallics 2020. [DOI: 10.1021/acs.organomet.0c00218] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Nuria Romero
- LCC-CNRS, Université de Toulouse, CNRS,
UPS, 205 route de Narbonne, 31077 Toulouse Cedex 4, France
| | - Quentin Dufrois
- LCC-CNRS, Université de Toulouse, CNRS,
UPS, 205 route de Narbonne, 31077 Toulouse Cedex 4, France
| | - Natalie Crespo
- LCC-CNRS, Université de Toulouse, CNRS,
UPS, 205 route de Narbonne, 31077 Toulouse Cedex 4, France
| | - Anthony Pujol
- LCC-CNRS, Université de Toulouse, CNRS,
UPS, 205 route de Narbonne, 31077 Toulouse Cedex 4, France
| | - Laure Vendier
- LCC-CNRS, Université de Toulouse, CNRS,
UPS, 205 route de Narbonne, 31077 Toulouse Cedex 4, France
| | - Michel Etienne
- LCC-CNRS, Université de Toulouse, CNRS,
UPS, 205 route de Narbonne, 31077 Toulouse Cedex 4, France
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33
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Affiliation(s)
- Amal Bouammali
- LCC‐CNRS Université de Toulouse, CNRS, UPS 205 route de Narbonne, BP 44099 31077 Toulouse cedex 4 France
| | - Christian Bijani
- LCC‐CNRS Université de Toulouse, CNRS, UPS 205 route de Narbonne, BP 44099 31077 Toulouse cedex 4 France
| | - Laure Vendier
- LCC‐CNRS Université de Toulouse, CNRS, UPS 205 route de Narbonne, BP 44099 31077 Toulouse cedex 4 France
| | - Michel Etienne
- LCC‐CNRS Université de Toulouse, CNRS, UPS 205 route de Narbonne, BP 44099 31077 Toulouse cedex 4 France
| | - Antoine Simonneau
- LCC‐CNRS Université de Toulouse, CNRS, UPS 205 route de Narbonne, BP 44099 31077 Toulouse cedex 4 France
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34
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Puyo M, Lebon E, Vendier L, Kahn ML, Fau P, Fajerwerg K, Lepetit C. Topological Analysis of Ag-Ag and Ag-N Interactions in Silver Amidinate Precursor Complexes of Silver Nanoparticles. Inorg Chem 2020; 59:4328-4339. [PMID: 32157877 DOI: 10.1021/acs.inorgchem.9b03166] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A series of silver amidinate complexes has been studied both experimentally and theoretically, in order to investigate the role of the precursor complex in the control of the synthesis of silver nanoparticles via an organometallic route. The replacement of the methyl substituent of the central carbon atom of the amidinate anion by a n-butyl group allows for the crystallization of the tetranuclear silver amidinate complex 3 instead of a mixture of di- and trinuclear silver amidinate complexes 1 and 2, as obtained with a methyl substituent. The relative stabilities and dissociation schemes of various isomeric arrangements of silver atoms in 3 are investigated at the computational DFT level of calculation, depending on the substituents of the amidinate ligand. The tetranuclear silver amidinate complex 4, exhibiting a diamondlike arrangement of the four silver atoms, is also considered. Ag-N bonds and argentophilic Ag-Ag interactions are finely characterized using ELF and QTAIM topological analyses and compared over the series of the related di-, tri-, and tetranuclear silver amidinate complexes 1-4. In contrast to the Ag-N dative bonds very similar over the series, argentophilic Ag-Ag interactions of various strengths and covalence degree are characterized for complexes 1-4. This gives insight into the role of the amidinate substituents on the nuclearity and intramolecular chemical bonding of the silver amidinate precursors, required for the synthesis of dedicated AgNPs with chemically well defined surfaces.
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Affiliation(s)
- Maxime Puyo
- LCC-CNRS, Université de Toulouse, CNRS, UPS, 205, route de Narbonne, F-31077 Toulouse, France
| | - Emilie Lebon
- LCC-CNRS, Université de Toulouse, CNRS, UPS, 205, route de Narbonne, F-31077 Toulouse, France
| | - Laure Vendier
- LCC-CNRS, Université de Toulouse, CNRS, UPS, 205, route de Narbonne, F-31077 Toulouse, France
| | - Myrtil L Kahn
- LCC-CNRS, Université de Toulouse, CNRS, UPS, 205, route de Narbonne, F-31077 Toulouse, France
| | - Pierre Fau
- LCC-CNRS, Université de Toulouse, CNRS, UPS, 205, route de Narbonne, F-31077 Toulouse, France
| | - Katia Fajerwerg
- LCC-CNRS, Université de Toulouse, CNRS, UPS, 205, route de Narbonne, F-31077 Toulouse, France
| | - Christine Lepetit
- LCC-CNRS, Université de Toulouse, CNRS, UPS, 205, route de Narbonne, F-31077 Toulouse, France
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Affiliation(s)
| | | | - Sergiu Shova
- « Petru Poni » Institute of Macromolecular Chemistry Aleea Gr. Ghico Voda 41 A 700487 Iasi Romania
| | - Laure Vendier
- LCC‐CNRS Université de Toulouse CNRS Toulouse France
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36
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Kireev NV, Filippov OA, Gulyaeva ES, Shubina ES, Vendier L, Canac Y, Sortais JB, Lugan N, Valyaev DA. Bis[diphenylphosphino]methane and its bridge-substituted analogues as chemically non-innocent ligands for H2 activation. Chem Commun (Camb) 2020; 56:2139-2142. [DOI: 10.1039/c9cc07713h] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Interconversion between coordinated diphosphinomethane and diphosphinomethanide moieties can be used as a new tool for metal–ligand cooperation.
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Affiliation(s)
- Nikolay V. Kireev
- A. N. Nesmeyanov Institute of Organoelement Compounds (INEOS)
- Russian Academy of Sciences
- Moscow
- Russia
- Department of Chemistry
| | - Oleg A. Filippov
- A. N. Nesmeyanov Institute of Organoelement Compounds (INEOS)
- Russian Academy of Sciences
- Moscow
- Russia
| | - Ekaterina S. Gulyaeva
- A. N. Nesmeyanov Institute of Organoelement Compounds (INEOS)
- Russian Academy of Sciences
- Moscow
- Russia
| | - Elena S. Shubina
- A. N. Nesmeyanov Institute of Organoelement Compounds (INEOS)
- Russian Academy of Sciences
- Moscow
- Russia
- Peoples Friendship University of Russia (RUDN University)
| | | | - Yves Canac
- LCC-CNRS
- Université de Toulouse
- CNRS
- Cedex 4
- France
| | | | - Noël Lugan
- LCC-CNRS
- Université de Toulouse
- CNRS
- Cedex 4
- France
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37
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Li Y, Nguyen M, Baudoin M, Vendier L, Liu Y, Robert A, Meunier B. Why Is Tetradentate Coordination Essential for Potential Copper Homeostasis Regulators in Alzheimer's Disease? Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201900951] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Youzhi Li
- Laboratoire de Chimie de Coordination du CNRS (LCC-CNRS); Université de Toulouse; 205 route de Narbonne, BP 44099 31077 Toulouse France
- School of Chemical Engineering and Light Industry; Guangdong University of Technology (GDUT); Higher Education Mega Center; 100 Waihuan Xi road, Panyu District 510006 Guangzhou P. R. China
| | - Michel Nguyen
- Laboratoire de Chimie de Coordination du CNRS (LCC-CNRS); Université de Toulouse; 205 route de Narbonne, BP 44099 31077 Toulouse France
| | - Morgane Baudoin
- Laboratoire de Chimie de Coordination du CNRS (LCC-CNRS); Université de Toulouse; 205 route de Narbonne, BP 44099 31077 Toulouse France
| | - Laure Vendier
- Laboratoire de Chimie de Coordination du CNRS (LCC-CNRS); Université de Toulouse; 205 route de Narbonne, BP 44099 31077 Toulouse France
| | - Yan Liu
- School of Chemical Engineering and Light Industry; Guangdong University of Technology (GDUT); Higher Education Mega Center; 100 Waihuan Xi road, Panyu District 510006 Guangzhou P. R. China
| | - Anne Robert
- Laboratoire de Chimie de Coordination du CNRS (LCC-CNRS); Université de Toulouse; 205 route de Narbonne, BP 44099 31077 Toulouse France
| | - Bernard Meunier
- Laboratoire de Chimie de Coordination du CNRS (LCC-CNRS); Université de Toulouse; 205 route de Narbonne, BP 44099 31077 Toulouse France
- School of Chemical Engineering and Light Industry; Guangdong University of Technology (GDUT); Higher Education Mega Center; 100 Waihuan Xi road, Panyu District 510006 Guangzhou P. R. China
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38
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Coffinet A, Specklin D, Vendier L, Etienne M, Simonneau A. Frustrated Lewis Pair Chemistry Enables N
2
Borylation by Formal 1,3‐Addition of a B−H Bond in the Coordination Sphere of Tungsten. Chemistry 2019; 25:14300-14303. [DOI: 10.1002/chem.201904084] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Indexed: 11/06/2022]
Affiliation(s)
- Anaïs Coffinet
- LCC-CNRSUPSUniversité de Toulouse, CNRS 205 route de Narbonne, BP44099 31077 Toulouse Cedex 4 France
| | - David Specklin
- LCC-CNRSUPSUniversité de Toulouse, CNRS 205 route de Narbonne, BP44099 31077 Toulouse Cedex 4 France
| | - Laure Vendier
- LCC-CNRSUPSUniversité de Toulouse, CNRS 205 route de Narbonne, BP44099 31077 Toulouse Cedex 4 France
| | - Michel Etienne
- LCC-CNRSUPSUniversité de Toulouse, CNRS 205 route de Narbonne, BP44099 31077 Toulouse Cedex 4 France
| | - Antoine Simonneau
- LCC-CNRSUPSUniversité de Toulouse, CNRS 205 route de Narbonne, BP44099 31077 Toulouse Cedex 4 France
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39
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Benaissa I, Pallova L, Morantin ME, Lafitte T, Huynh M, Barthes C, Vendier L, Lugan N, Bastin S, César V. N-Heterocyclic Carbenes as Key Intermediates in the Synthesis of Fused, Mesoionic, Tricyclic Heterocycles. Chemistry 2019; 25:13030-13036. [PMID: 31385630 DOI: 10.1002/chem.201903242] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2019] [Indexed: 01/16/2023]
Abstract
Coupling between 5-bromoimidazo[1,5-a]pyridinium salts and malonate or arylacetate esters leads to a facile and straightforward access to the new mesoionic, fused, tricyclic system of imidazo[2,1,5-cd]indolizinium-3-olate. Mechanistic studies show that the reaction pathway consists of nucleophilic aromatic substitution on the cationic, bicyclic heterocycle by an enolate-type moiety and in the nucleophilic attack of a transient free N-heterocyclic carbene (NHC) species on the ester group; the relative order of these two steps depends on the nature of the starting ester. This work highlights the valuable implementation of free NHC species as key intermediates in synthetic chemistry, beyond their classical use as stabilizing ligands or organocatalysts.
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Affiliation(s)
- Idir Benaissa
- LCC-CNRS, Université de Toulouse, CNRS, Toulouse, 31077, France
| | - Lenka Pallova
- LCC-CNRS, Université de Toulouse, CNRS, Toulouse, 31077, France
| | | | - Thomas Lafitte
- LCC-CNRS, Université de Toulouse, CNRS, Toulouse, 31077, France
| | - Mathieu Huynh
- LCC-CNRS, Université de Toulouse, CNRS, Toulouse, 31077, France
| | - Cécile Barthes
- LCC-CNRS, Université de Toulouse, CNRS, Toulouse, 31077, France
| | - Laure Vendier
- LCC-CNRS, Université de Toulouse, CNRS, Toulouse, 31077, France
| | - Noël Lugan
- LCC-CNRS, Université de Toulouse, CNRS, Toulouse, 31077, France
| | | | - Vincent César
- LCC-CNRS, Université de Toulouse, CNRS, Toulouse, 31077, France
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40
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Zhang W, Huang D, Huang M, Huang J, Wang D, Liu X, Nguyen M, Vendier L, Mazères S, Robert A, Liu Y, Meunier B. Corrigendum: Preparation of Tetradentate Copper Chelators as Potential Anti‐Alzheimer Agents. ChemMedChem 2019; 14:1742. [DOI: 10.1002/cmdc.201900516] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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41
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Parker KDJ, Labat S, Sotiropoulos J, Miqueu K, Pimienta V, Vendier L, Etienne M. Allyl Complexes of Tungsten from the Rearrangement of Transient Cyclopropyl Precursors. Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201900816] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
| | - Stéphane Labat
- CNRS/UPPA – IPREM UMR 5254 Hélioparc. 2 avenue P. Angot 64053 Pau cedex 09 France
| | | | - Karinne Miqueu
- CNRS/UPPA – IPREM UMR 5254 Hélioparc. 2 avenue P. Angot 64053 Pau cedex 09 France
| | - Véronique Pimienta
- IMRCP Université de Toulouse CNRS, UMR 5623, UPS 118 route de Narbonne 31062 Toulouse France
| | - Laure Vendier
- LCC‐CNRS Université de Toulouse CNRS, UPS Toulouse France
| | - Michel Etienne
- LCC‐CNRS Université de Toulouse CNRS, UPS Toulouse France
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42
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Tang Y, Benaissa I, Huynh M, Vendier L, Lugan N, Bastin S, Belmont P, César V, Michelet V. Inside Cover: An Original L‐shape, Tunable N‐Heterocyclic Carbene Platform for Efficient Gold(I) Catalysis (Angew. Chem. Int. Ed. 24/2019). Angew Chem Int Ed Engl 2019. [DOI: 10.1002/anie.201905442] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Yue Tang
- PSL Research University Chimie ParisTech—CNRS Institut de Recherche de Chimie Paris 75005 Paris France
- University Côte d'Azur Institut de Chimie de Nice, UMR 7272 CNRS Parc Valrose Faculté des Sciences 06100 Nice France
| | - Idir Benaissa
- LCC-CNRS Université de Toulouse CNRS 205 route de Narbonne 31077 Toulouse Cedex 4 France
| | - Mathieu Huynh
- LCC-CNRS Université de Toulouse CNRS 205 route de Narbonne 31077 Toulouse Cedex 4 France
| | - Laure Vendier
- LCC-CNRS Université de Toulouse CNRS 205 route de Narbonne 31077 Toulouse Cedex 4 France
| | - Noël Lugan
- LCC-CNRS Université de Toulouse CNRS 205 route de Narbonne 31077 Toulouse Cedex 4 France
| | - Stéphanie Bastin
- LCC-CNRS Université de Toulouse CNRS 205 route de Narbonne 31077 Toulouse Cedex 4 France
| | - Philippe Belmont
- Université Paris Descartes Faculté de Pharmacie de Paris UMR CNRS 8038 CiTCoM 4 avenue de l'Observatoire 75006 Paris France
| | - Vincent César
- LCC-CNRS Université de Toulouse CNRS 205 route de Narbonne 31077 Toulouse Cedex 4 France
| | - Véronique Michelet
- PSL Research University Chimie ParisTech—CNRS Institut de Recherche de Chimie Paris 75005 Paris France
- University Côte d'Azur Institut de Chimie de Nice, UMR 7272 CNRS Parc Valrose Faculté des Sciences 06100 Nice France
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43
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Tang Y, Benaissa I, Huynh M, Vendier L, Lugan N, Bastin S, Belmont P, César V, Michelet V. Innentitelbild: An Original L‐shape, Tunable N‐Heterocyclic Carbene Platform for Efficient Gold(I) Catalysis (Angew. Chem. 24/2019). Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201905442] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Yue Tang
- PSL Research University Chimie ParisTech—CNRS Institut de Recherche de Chimie Paris 75005 Paris France
- University Côte d'Azur Institut de Chimie de Nice, UMR 7272 CNRS Parc Valrose Faculté des Sciences 06100 Nice France
| | - Idir Benaissa
- LCC-CNRS Université de Toulouse CNRS 205 route de Narbonne 31077 Toulouse Cedex 4 France
| | - Mathieu Huynh
- LCC-CNRS Université de Toulouse CNRS 205 route de Narbonne 31077 Toulouse Cedex 4 France
| | - Laure Vendier
- LCC-CNRS Université de Toulouse CNRS 205 route de Narbonne 31077 Toulouse Cedex 4 France
| | - Noël Lugan
- LCC-CNRS Université de Toulouse CNRS 205 route de Narbonne 31077 Toulouse Cedex 4 France
| | - Stéphanie Bastin
- LCC-CNRS Université de Toulouse CNRS 205 route de Narbonne 31077 Toulouse Cedex 4 France
| | - Philippe Belmont
- Université Paris Descartes Faculté de Pharmacie de Paris UMR CNRS 8038 CiTCoM 4 avenue de l'Observatoire 75006 Paris France
| | - Vincent César
- LCC-CNRS Université de Toulouse CNRS 205 route de Narbonne 31077 Toulouse Cedex 4 France
| | - Véronique Michelet
- PSL Research University Chimie ParisTech—CNRS Institut de Recherche de Chimie Paris 75005 Paris France
- University Côte d'Azur Institut de Chimie de Nice, UMR 7272 CNRS Parc Valrose Faculté des Sciences 06100 Nice France
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44
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Bas AC, Shalabaeva V, Thompson X, Vendier L, Salmon L, Thibault C, Molnár G, Routaboul L, Bousseksou A. Effects of solvent vapor annealing on the crystallinity and spin crossover properties of thin films of [Fe(HB(tz)3)2]. CR CHIM 2019. [DOI: 10.1016/j.crci.2019.03.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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45
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Tang Y, Benaissa I, Huynh M, Vendier L, Lugan N, Bastin S, Belmont P, César V, Michelet V. An Original L‐shape, Tunable N‐Heterocyclic Carbene Platform for Efficient Gold(I) Catalysis. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201901090] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Yue Tang
- PSL Research University Chimie ParisTech—CNRS Institut de Recherche de Chimie Paris 75005 Paris France
- University Côte d'Azur Institut de Chimie de Nice, UMR 7272 CNRS Parc Valrose Faculté des Sciences 06100 Nice France
| | - Idir Benaissa
- LCC-CNRS Université de Toulouse CNRS 205 route de Narbonne 31077 Toulouse Cedex 4 France
| | - Mathieu Huynh
- LCC-CNRS Université de Toulouse CNRS 205 route de Narbonne 31077 Toulouse Cedex 4 France
| | - Laure Vendier
- LCC-CNRS Université de Toulouse CNRS 205 route de Narbonne 31077 Toulouse Cedex 4 France
| | - Noël Lugan
- LCC-CNRS Université de Toulouse CNRS 205 route de Narbonne 31077 Toulouse Cedex 4 France
| | - Stéphanie Bastin
- LCC-CNRS Université de Toulouse CNRS 205 route de Narbonne 31077 Toulouse Cedex 4 France
| | - Philippe Belmont
- Université Paris Descartes Faculté de Pharmacie de Paris UMR CNRS 8038 CiTCoM 4 avenue de l'Observatoire 75006 Paris France
| | - Vincent César
- LCC-CNRS Université de Toulouse CNRS 205 route de Narbonne 31077 Toulouse Cedex 4 France
| | - Véronique Michelet
- PSL Research University Chimie ParisTech—CNRS Institut de Recherche de Chimie Paris 75005 Paris France
- University Côte d'Azur Institut de Chimie de Nice, UMR 7272 CNRS Parc Valrose Faculté des Sciences 06100 Nice France
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46
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Tang Y, Benaissa I, Huynh M, Vendier L, Lugan N, Bastin S, Belmont P, César V, Michelet V. An Original L‐shape, Tunable N‐Heterocyclic Carbene Platform for Efficient Gold(I) Catalysis. Angew Chem Int Ed Engl 2019; 58:7977-7981. [DOI: 10.1002/anie.201901090] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2019] [Indexed: 12/11/2022]
Affiliation(s)
- Yue Tang
- PSL Research University Chimie ParisTech—CNRS Institut de Recherche de Chimie Paris 75005 Paris France
- University Côte d'Azur Institut de Chimie de Nice, UMR 7272 CNRS Parc Valrose Faculté des Sciences 06100 Nice France
| | - Idir Benaissa
- LCC-CNRS Université de Toulouse CNRS 205 route de Narbonne 31077 Toulouse Cedex 4 France
| | - Mathieu Huynh
- LCC-CNRS Université de Toulouse CNRS 205 route de Narbonne 31077 Toulouse Cedex 4 France
| | - Laure Vendier
- LCC-CNRS Université de Toulouse CNRS 205 route de Narbonne 31077 Toulouse Cedex 4 France
| | - Noël Lugan
- LCC-CNRS Université de Toulouse CNRS 205 route de Narbonne 31077 Toulouse Cedex 4 France
| | - Stéphanie Bastin
- LCC-CNRS Université de Toulouse CNRS 205 route de Narbonne 31077 Toulouse Cedex 4 France
| | - Philippe Belmont
- Université Paris Descartes Faculté de Pharmacie de Paris UMR CNRS 8038 CiTCoM 4 avenue de l'Observatoire 75006 Paris France
| | - Vincent César
- LCC-CNRS Université de Toulouse CNRS 205 route de Narbonne 31077 Toulouse Cedex 4 France
| | - Véronique Michelet
- PSL Research University Chimie ParisTech—CNRS Institut de Recherche de Chimie Paris 75005 Paris France
- University Côte d'Azur Institut de Chimie de Nice, UMR 7272 CNRS Parc Valrose Faculté des Sciences 06100 Nice France
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47
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Corona-González MV, Zamora-Moreno J, Muñoz-Hernández MA, Vendier L, Sabo-Etienne S, Montiel-Palma V. Exploiting the Versatility of Phosphinobenzylsilanes for the Stabilization of 14-Electron Rhodium(III) and Iridium(III) Complexes. Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201900107] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- María Vicky Corona-González
- Centro de Investigaciones Químicas; IICBA; Universidad Autónoma del Estado de Morelos; Avenida Universidad 1001, Col. Chamilpa 62209 Cuernavaca, Morelos, C. P. Mexico
- LCC-CNRS; IICBA; Université de Toulouse, CNRS, UPS; 205 route de Narbonne, BP 44099 31077 Toulouse Cedex 4 France
| | - Julio Zamora-Moreno
- Centro de Investigaciones Químicas; IICBA; Universidad Autónoma del Estado de Morelos; Avenida Universidad 1001, Col. Chamilpa 62209 Cuernavaca, Morelos, C. P. Mexico
| | - Miguel A. Muñoz-Hernández
- Centro de Investigaciones Químicas; IICBA; Universidad Autónoma del Estado de Morelos; Avenida Universidad 1001, Col. Chamilpa 62209 Cuernavaca, Morelos, C. P. Mexico
| | - Laure Vendier
- LCC-CNRS; IICBA; Université de Toulouse, CNRS, UPS; 205 route de Narbonne, BP 44099 31077 Toulouse Cedex 4 France
| | - Sylviane Sabo-Etienne
- LCC-CNRS; IICBA; Université de Toulouse, CNRS, UPS; 205 route de Narbonne, BP 44099 31077 Toulouse Cedex 4 France
| | - Virginia Montiel-Palma
- Centro de Investigaciones Químicas; IICBA; Universidad Autónoma del Estado de Morelos; Avenida Universidad 1001, Col. Chamilpa 62209 Cuernavaca, Morelos, C. P. Mexico
- Department of Chemistry; IICBA; Mississippi State University; Box 9573 39762 Mississippi State Mississippi USA
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48
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Costes JP, Mallet-Ladeira S, Vendier L, Maurice R, Wernsdorfer W. Influence of ancillary ligands and solvents on the nuclearity of Ni-Ln complexes. Dalton Trans 2019; 48:3404-3414. [PMID: 30788479 DOI: 10.1039/c9dt00370c] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A Schiff base ligand resulting from the reaction of ovanillin and 2,2-dimethyl-1,3-diaminopropane allows the preparation of hetero-dinuclear [Ni-Ln]3+ or -trinuclear [Ni-Ln-Ni]3+ complexes. Although empirical parameters for rationalizing the strength of the ferromagnetic Ni-Gd interaction have already been discussed in several papers, no systematic study has been devoted to the control of the nuclearity of such complexes. With the help of structural determinations, we demonstrate the role of solvent and of the nature of ancillary ligands, linked to the Ln ions, in nuclearity. For instance, the presence of one chelating nitrato ligand is already sufficient to impede an increase in the nuclearity, while the replacement of nitrato ligands by chloride anions still yields dinuclear Ni-Ln complexes. This experimental result evidences the role of protic solvents. In contrast, the use of lanthanide salts, soluble in non-protic solvents, allows the isolation of dinuclear [Ni-Ln]3+ or trinuclear cationic [LNi-Ln-NiL]3+ complexes, depending on the Ni/Ln ratio. A further synthetic step can be overtaken by the reaction of a Ni-Ln complex, soluble in a non-protic solvent, with a LM complex (M = Cu, Zn). By doing so, a heterotrinuclear complex made of three different metal ions, two distinct 3d ions and a 4f one, has been isolated and structurally characterized. Note that the Ni coordination number decreases from 6 to 5 on going from the dinuclear complex to the trinuclear one. Also, the replacement of water molecules by chloride ligands in the hexacoordinate Ni complexes induces a net increase of the positive zero-field splitting parameter D to 20 cm-1, which is supported by ab initio calculations. Although the Ni-Ln (Ln = Gd, Tb, Dy) magnetic interactions are ferromagnetic, the corresponding trinuclear complexes are devoid of SMM properties in the absence of an applied magnetic field.
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Barakat F, Vansteelandt M, Triastuti A, Jargeat P, Jacquemin D, Graton J, Mejia K, Cabanillas B, Vendier L, Stigliani JL, Haddad M, Fabre N. Thiodiketopiperazines with two spirocyclic centers extracted from Botryosphaeria mamane, an endophytic fungus isolated from Bixa orellana L. Phytochemistry 2019; 158:142-148. [PMID: 30576967 DOI: 10.1016/j.phytochem.2018.11.007] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2018] [Revised: 11/08/2018] [Accepted: 11/09/2018] [Indexed: 06/09/2023]
Abstract
Three thiodiketopiperazines, botryosulfuranols A-C (1-3) were isolated from the endophytic fungus Botryosphaeria mamane. The three compounds present sulfur atoms on α- and β-positions of phenylalanine derived residues and unprecedented two spirocyclic centers at C-4 and C-2'. Their planar structures were determined by spectroscopic analysis and absolute configurations were achieved by X-ray diffraction analysis and ECD and NMR chemical shifts calculations. Botryosulfuranol A (1) was the most cytotoxic compound against four cancer cell lines (HT-29, HepG2, Caco-2, HeLa) and two healthy cell lines (IEC6, Vero) highlighting the importance of an electrophilic center for cell growth inhibition.
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Affiliation(s)
- Fatima Barakat
- UMR 152 Pharma Dev, Université de Toulouse, IRD, UPS, France
| | | | - Asih Triastuti
- UMR 152 Pharma Dev, Université de Toulouse, IRD, UPS, France
| | - Patricia Jargeat
- Laboratoire Evolution et Diversité Biologique UMR 5174, Université de Toulouse, CNRS, IRD, UPS, France
| | - Denis Jacquemin
- Laboratoire CEISAM, UMR CNRS n° 6230, University of Nantes, 2, rue de la Houssinière, 44322 Nantes, Cedex 2, France
| | - Jérôme Graton
- Laboratoire CEISAM, UMR CNRS n° 6230, University of Nantes, 2, rue de la Houssinière, 44322 Nantes, Cedex 2, France
| | - Kember Mejia
- Instituto de Investigaciones de la Amazonía Peruana, Avenida Abelardo Quiñonez Km. 4.5, Iquitos, Peru
| | - Billy Cabanillas
- Instituto de Investigaciones de la Amazonía Peruana, Avenida Abelardo Quiñonez Km. 4.5, Iquitos, Peru
| | - Laure Vendier
- Laboratoire de Chimie de Coordination du CNRS, Centre National de la Recherche Scientifique, 205 route de Narbonne, BP 44099, 31077, Toulouse Cedex 4, France
| | - Jean-Luc Stigliani
- Laboratoire de Chimie de Coordination du CNRS, Centre National de la Recherche Scientifique, 205 route de Narbonne, BP 44099, 31077, Toulouse Cedex 4, France
| | - Mohamed Haddad
- UMR 152 Pharma Dev, Université de Toulouse, IRD, UPS, France
| | - Nicolas Fabre
- UMR 152 Pharma Dev, Université de Toulouse, IRD, UPS, France.
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Cuevas-Chávez CA, Vendier L, Sabo-Etienne S, Montiel-Palma V. Iridium complexes featuring a tridentate SiPSi ligand: from dimeric to monomeric 14, 16 or 18-electron species. Dalton Trans 2019; 48:14010-14018. [DOI: 10.1039/c9dt03136g] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Dimer [Ir{P(o-C6H4CH2SiMe2)2Ph}(μ-Cl)]2 featuring tricoordinate phosphinodisilyl ligands dissociates in solution to the reactive 14 electron monomer [Ir(SiPSi)Cl].
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Affiliation(s)
- Cynthia A. Cuevas-Chávez
- Centro de Investigaciones Químicas
- IICBA
- Universidad Autónoma del Estado de Morelos
- Cuernavaca
- Mexico
| | - Laure Vendier
- LCC-CNRS
- Université de Toulouse
- CNRS
- UPS
- F-31077 Toulouse Cedex 4
| | | | - Virginia Montiel-Palma
- Centro de Investigaciones Químicas
- IICBA
- Universidad Autónoma del Estado de Morelos
- Cuernavaca
- Mexico
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