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Zhu C, Saquet A, Maraval V, Bijani C, Cui X, Poater A, Chauvin R. From Stilbenes to carbo-Stilbenes: an Encouraging Prospect. Chemistry 2024; 30:e202400451. [PMID: 38407368 DOI: 10.1002/chem.202400451] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Revised: 02/24/2024] [Accepted: 02/26/2024] [Indexed: 02/27/2024]
Abstract
Beyond previously described carbo-naphthalene and carbo-biphenyl, a novel type of bis-carbo-benzenic molecules is envisaged from the stilbene parent. The synthesis, structure, spectroscopic and electrochemical properties of two such carbo-stilbenes are described at complementary experimental and computational DFT levels. In the selected targets, the bare skeletal carbo-mer of carbo-stilbene is decorated by 8 or 10 phenyl groups, 0 or 2 tert-butyl groups, and 2 n-octyl chains, the later substituents being introduced to compensate anticipated solubility issues. As in the parent stilbene series, isomers of the phenylated carbo-stilbenes are characterized. The cis- and trans-isomers are, however, formed in almost equal amounts and could not be separated by either chromatography or crystallization. Nevertheless, due to a slow interconversion at the NMR time scale (up to 55 °C) the 1H NMR signals of both isomers of the two carbo-stilbenes could be tentatively assigned. The calculated structure of the cis-isomer exhibits a helical shape, consistent with the observed magnetic shielding of phenyl p-CH nuclei residing inside the shielding cone of the facing C18 ring. The presence of the two isomers in solution also gives rise to quite broad UV-vis absorption spectra with main bands at ca 460, 560 and 710 nm, and a significant bathochromic shift for the decaphenylated carbo-stilbene vs the di-tert-butyl-octaphenylated counterpart. Square wave voltammograms do not show any resolution of the two isomers, giving a reversible reduction wave at -0.65 or -0.58 V/SCE, and an irreversible oxidation peak at 1.11 V/SCE, those values being classical for most carbo-benzene derivatives. Calculated NICS values (NICS(1)=-12.5±0.2 ppm) also indicate that the aromatic nature of the C18 rings is not markedly affected by the dialkynylbutatriene (DAB) connector between them.
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Affiliation(s)
- Chongwei Zhu
- Faculté Science et Ingénierie - Département de Chimie., Unsaturated molecules for physics, biology and chemistry group., Université Toulouse III - Paul Sabatier, 118 route de Narbonne, 31-062, Toulouse Cedex 09, France
- Key Laboratory of Functional Molecular Solids, Ministry of Education, and School of Chemistry and Materials Science, Anhui Normal University, Wuhu, 241002, China
| | - Alix Saquet
- LCC-CNRS, Université de Toulouse, CNRS, UPS, Toulouse, France
| | - Valérie Maraval
- LCC-CNRS, Université de Toulouse, CNRS, UPS, Toulouse, France
| | | | - Xiuling Cui
- Engineering Research Center of Molecular Medicine of Ministry of Education, Key Laboratory of Fujian Molecular Medicine, Key Laboratory of Xiamen Marine and Gene Drugs, School of Biomedical Sciences, Huaqiao University, Xiamen, 361021, China
| | - Albert Poater
- Institut de Química Computacional i Catàlisi, Departament de Química, Universitat de Girona, c/ Mª Aurèlia, Capmany 69, 17003, Girona, Catalonia, Spain
| | - Remi Chauvin
- Faculté Science et Ingénierie - Département de Chimie., Unsaturated molecules for physics, biology and chemistry group., Université Toulouse III - Paul Sabatier, 118 route de Narbonne, 31-062, Toulouse Cedex 09, France
- Engineering Research Center of Molecular Medicine of Ministry of Education, Key Laboratory of Fujian Molecular Medicine, Key Laboratory of Xiamen Marine and Gene Drugs, School of Biomedical Sciences, Huaqiao University, Xiamen, 361021, China
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Poater J, Heitkämper J, Poater A, Maraval V, Chauvin R. Zwitterionic Aromaticity on Azulene Extrapolated to
carbo
‐Azulene. European J Org Chem 2021. [DOI: 10.1002/ejoc.202101228] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Jordi Poater
- Departament de Química Inorgànica i Orgànica & IQTCUB Universitat de Barcelona 08028 Barcelona Spain
- ICREA 08010 Barcelona Spain
| | - Juliane Heitkämper
- Universität Stuttgart Institut für Theoretische Chemie Pfaffenwaldring 55 70569 Stuttgart Germany
- Institut de Química Computacional i Catàlisi and Departament de Química Universitat de Girona, c/ Mª Aurèlia Capmany 69 17003 Girona, Catalonia Spain
| | - Albert Poater
- Institut de Química Computacional i Catàlisi and Departament de Química Universitat de Girona, c/ Mª Aurèlia Capmany 69 17003 Girona, Catalonia Spain
| | - Valérie Maraval
- LCC-CNRS University of Toulouse 205 route de Narbonne 31077 Toulouse France
| | - Remi Chauvin
- LCC-CNRS University of Toulouse 205 route de Narbonne 31077 Toulouse France
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Zhu C, Poater A, Duhayon C, Kauffmann B, Saquet A, Rives A, Maraval V, Chauvin R. Carbo-mer of Barrelene: A Rigid 3D-Carbon-Expanded Molecular Barrel. Chemistry 2021; 27:9286-9291. [PMID: 33900649 DOI: 10.1002/chem.202100670] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Indexed: 11/08/2022]
Abstract
After extensive studies of 1D and 2D skeletal carbo-mers based on C8 π-conjugating dialkynylbutatriene units (DABs: ∼C≡C-(R)C=C=C=C(R)-C≡C∼) bridging sp or sp2 centers in carbo-butene, carbo-xylylene or carbo-benzene derivatives, 3D versions are envisaged through carbo-barrelenes and partially reduced derivatives thereof where two or three DAB blades span a bridge between sp3 carbinol vertices or ether thereof. For R=Ph, stable representatives were synthesized through a pivotal [6]pericyclynedione, and extensively characterized by spectroscopic, electrochemical and crystallographic methods. Density functional theory calculations allow detailed analysis of structural and electronic features of the 7 Å high C26 barrel-shaped molecules, and show that they can behave as cages for ionic species. Beyond aesthetical concerns, the results could open prospects of applications in host-guest supramolecular chemistry and single molecule charge transport.
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Affiliation(s)
- Chongwei Zhu
- LCC-CNRS, University of Toulouse, 205 route de Narbonne, 31077, Toulouse, France
| | - Albert Poater
- Institut de Química Computacional i Catàlisi and, Departament de Química, Universitat de Girona, c/ Maria Aurèlia Capmany 69, 17003, Girona, Catalonia, Spain
| | - Carine Duhayon
- LCC-CNRS, University of Toulouse, 205 route de Narbonne, 31077, Toulouse, France
| | - Brice Kauffmann
- CNRS, INSERM, UMS3033/US001, Institut Européen de Chimie Biologie, Université de Bordeaux, 33607, Pessac, France
| | - Alix Saquet
- LCC-CNRS, University of Toulouse, 205 route de Narbonne, 31077, Toulouse, France
| | - Arnaud Rives
- LCC-CNRS, University of Toulouse, 205 route de Narbonne, 31077, Toulouse, France
| | - Valérie Maraval
- LCC-CNRS, University of Toulouse, 205 route de Narbonne, 31077, Toulouse, France
| | - Remi Chauvin
- LCC-CNRS, University of Toulouse, 205 route de Narbonne, 31077, Toulouse, France
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Listunov D, Hammerich O, Caballero‐Quintana I, Poater A, Barthes C, Duhayon C, Larsen MH, Maldonado J, Ramos‐Ortiz G, Nielsen MB, Maraval V, Chauvin R. Core
carbo
‐mer of an Extended Tetrathiafulvalene: Redox‐Controlled Reversible Conversion to a
carbo
‐Benzenic Dication. Chemistry 2020; 26:10707-10711. [DOI: 10.1002/chem.202001700] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Indexed: 11/11/2022]
Affiliation(s)
| | - Ole Hammerich
- Department of Chemistry University of Copenhagen Universitetsparken 5 2100 Copenhagen Denmark
| | | | - Albert Poater
- Institut de Química Computacional i Catàlisi and Departament de Química Universitat de Girona c/ Maria Aurèlia Capmany, 69 17003 Girona Catalonia Spain
| | - Cécile Barthes
- LCC-CNRS Université de Toulouse, CNRS, UPS Toulouse France
| | - Carine Duhayon
- LCC-CNRS Université de Toulouse, CNRS, UPS Toulouse France
| | - Mie Højer Larsen
- Department of Chemistry University of Copenhagen Universitetsparken 5 2100 Copenhagen Denmark
| | | | | | | | | | - Remi Chauvin
- LCC-CNRS Université de Toulouse, CNRS, UPS Toulouse France
- School of Biomedical Sciences Huaqiao University Xiamen 361021 P. R. China
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Chammam M, Caballero‐Quintana I, Barreiro‐Argüelles D, Amargós‐Reyes O, Aidibi Y, Kauffmann B, Duhayon C, Maldonado J, Ramos‐Ortíz G, Maraval V, Chauvin R. Expanding the
carbo
‐Benzene Chemical Space for Electron‐Accepting Ability: Trifluorotolyl/Tertiobutyl Substitution Balance. Helv Chim Acta 2019. [DOI: 10.1002/hlca.201900049] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Marwa Chammam
- LCC-CNRSUniversité de Toulouse, CNRS, UPS, Lab. de Chimie de Coordination 205 Route de Narbonne FR-31077 Toulouse France
| | - Irving Caballero‐Quintana
- LCC-CNRSUniversité de Toulouse, CNRS, UPS, Lab. de Chimie de Coordination 205 Route de Narbonne FR-31077 Toulouse France
- Centro de Investigaciones en Óptica A.P. 1-948 Loma del Bosque 115, Lomas del Campestre León MX-37150 León, Guanajuato México
| | - Denisse Barreiro‐Argüelles
- Centro de Investigaciones en Óptica A.P. 1-948 Loma del Bosque 115, Lomas del Campestre León MX-37150 León, Guanajuato México
| | - Olivia Amargós‐Reyes
- Centro de Investigaciones en Óptica A.P. 1-948 Loma del Bosque 115, Lomas del Campestre León MX-37150 León, Guanajuato México
| | - Youssef Aidibi
- LCC-CNRSUniversité de Toulouse, CNRS, UPS, Lab. de Chimie de Coordination 205 Route de Narbonne FR-31077 Toulouse France
| | - Brice Kauffmann
- Université de Bordeaux, CNRS, INSERM, UMS3033/US001Institut Européen de Chimie et Biologie, 2 Rue Robert Escarpit FR-33607 Pessac France
| | - Carine Duhayon
- LCC-CNRSUniversité de Toulouse, CNRS, UPS, Lab. de Chimie de Coordination 205 Route de Narbonne FR-31077 Toulouse France
| | - José‐Luis Maldonado
- Centro de Investigaciones en Óptica A.P. 1-948 Loma del Bosque 115, Lomas del Campestre León MX-37150 León, Guanajuato México
| | - Gabriel Ramos‐Ortíz
- Centro de Investigaciones en Óptica A.P. 1-948 Loma del Bosque 115, Lomas del Campestre León MX-37150 León, Guanajuato México
| | - Valérie Maraval
- LCC-CNRSUniversité de Toulouse, CNRS, UPS, Lab. de Chimie de Coordination 205 Route de Narbonne FR-31077 Toulouse France
| | - Remi Chauvin
- LCC-CNRSUniversité de Toulouse, CNRS, UPS, Lab. de Chimie de Coordination 205 Route de Narbonne FR-31077 Toulouse France
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