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Carrasco I, Ehni P, Ebert M, Dumait N, Taupier G, Amela-Cortes M, Roiland C, Cordier S, Knöller JA, Jacques E, Laschat S, Molard Y. Game of Crowns: Na + Is Coming! Red NIR-Emissive Hybrid Liquid Crystals Containing Discotic Crown Ethers and Na 2Mo 6X 8iCl 6 (X i = Cl or Br). ACS APPLIED MATERIALS & INTERFACES 2023; 15:39752-39764. [PMID: 37566407 DOI: 10.1021/acsami.3c08441] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/12/2023]
Abstract
Molecular or supramolecular materials that can self-organize into columns such as discotic liquid crystals are of interest for several applications in the field of optoelectronics. We show in this work that red near-infrared (NIR)-emissive metal cluster compounds of general formula Na2Mo6X8iCl6 (Xi = Cl or Br) can be readily complexed with discotic liquid crystals containing a crown ether. Three cavity sizes have been tested with crown ethers bearing 4, 5, or 6 oxygen atoms. In all cases, 1:1 complexes were formed, thanks to the well-known supramolecular interactions existing between the Na+ cations of the metal cluster salt and the crown ether derivatives. All obtained hybrids are homogeneous, emit in the red NIR region, and show liquid crystalline properties on a wider temperature range than their precursors. Charge transport properties have been investigated by using a space charge limited current device. Obtained results demonstrate that metal cluster compounds can enhance the charge carrier mobility by 5 orders of magnitude compared to the native discotic organic ligands. Considering that the presented organic crown ether derivatives are not the best candidates to design optoelectronic devices because of their inherently low conductivity, but that similar compounds were developed to design proton conductive porous framework, our results open promising perspectives for the use of metal cluster compounds in devices dedicated to such a field.
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Affiliation(s)
- Irene Carrasco
- Univ Rennes, CNRS, ISCR─UMR 6226, ScanMAT─UAR 2025, IETR─UMR6164, F-35000 Rennes, France
| | - Philipp Ehni
- Institut für Organische Chemie, Universität Stuttgart, Pfaffenwaldring 55, 70569 Stuttgart, Germany
| | - Max Ebert
- Institut für Organische Chemie, Universität Stuttgart, Pfaffenwaldring 55, 70569 Stuttgart, Germany
| | - Noée Dumait
- Univ Rennes, CNRS, ISCR─UMR 6226, ScanMAT─UAR 2025, IETR─UMR6164, F-35000 Rennes, France
| | - Gregory Taupier
- Univ Rennes, CNRS, ISCR─UMR 6226, ScanMAT─UAR 2025, IETR─UMR6164, F-35000 Rennes, France
| | - Maria Amela-Cortes
- Univ Rennes, CNRS, ISCR─UMR 6226, ScanMAT─UAR 2025, IETR─UMR6164, F-35000 Rennes, France
| | - Claire Roiland
- Univ Rennes, CNRS, ISCR─UMR 6226, ScanMAT─UAR 2025, IETR─UMR6164, F-35000 Rennes, France
| | - Stéphane Cordier
- Univ Rennes, CNRS, ISCR─UMR 6226, ScanMAT─UAR 2025, IETR─UMR6164, F-35000 Rennes, France
| | - Julius A Knöller
- Institut für Organische Chemie, Universität Stuttgart, Pfaffenwaldring 55, 70569 Stuttgart, Germany
| | - Emmanuel Jacques
- Univ Rennes, CNRS, ISCR─UMR 6226, ScanMAT─UAR 2025, IETR─UMR6164, F-35000 Rennes, France
| | - Sabine Laschat
- Institut für Organische Chemie, Universität Stuttgart, Pfaffenwaldring 55, 70569 Stuttgart, Germany
| | - Yann Molard
- Univ Rennes, CNRS, ISCR─UMR 6226, ScanMAT─UAR 2025, IETR─UMR6164, F-35000 Rennes, France
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Martinetto Y, Pégot B, Roch‐Marchal C, Cottyn‐Boitte B, Floquet S. Designing Functional Polyoxometalate‐Based Ionic Liquid Crystals and Ionic Liquids. Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201900990] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Yohan Martinetto
- Institut Lavoisier de Versailles, UMR 8180 Université de Versailles St‐Quentin en Yvelines, Université Paris‐Saclay 45 Avenue des Etats‐Unis 78035 Versailles France
- Institut Jean‐Pierre Bourgin, INRA, Agro Paris Tech, CNRS Université Paris Saclay 78000 Versailles France
| | - Bruce Pégot
- Institut Lavoisier de Versailles, UMR 8180 Université de Versailles St‐Quentin en Yvelines, Université Paris‐Saclay 45 Avenue des Etats‐Unis 78035 Versailles France
| | - Catherine Roch‐Marchal
- Institut Lavoisier de Versailles, UMR 8180 Université de Versailles St‐Quentin en Yvelines, Université Paris‐Saclay 45 Avenue des Etats‐Unis 78035 Versailles France
| | - Betty Cottyn‐Boitte
- Institut Jean‐Pierre Bourgin, INRA, Agro Paris Tech, CNRS Université Paris Saclay 78000 Versailles France
| | - Sébastien Floquet
- Institut Lavoisier de Versailles, UMR 8180 Université de Versailles St‐Quentin en Yvelines, Université Paris‐Saclay 45 Avenue des Etats‐Unis 78035 Versailles France
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