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Poster de conférence

Porous coordination polymers (PCPs) based on redox ligands

Abstract : PCPs (Porous Coordination Polymers) or MOFs (Metal Organic Frameworks) are crystalline materials whose structures consist of metal-based nodes bridged by organic linking groups. They are a well known class of porous materials which can have applications in gas storage (H2, CH4, CO2,…), heterogeneous catalysis and chemical sensors.1 Up to now the main strategy to increase the absorption properties has been to introduce coordinatively unsaturated metal centres. In contrast, the incorporation of cationic organic ligands is much rarer despite a certain potential as shown by some reports.2 Our original approach consists of mixing electro-active viologen derivatives to a useful coordination function like carboxylate, which is widely used in such materials,3 to synthesize new PCPs for gas storage and molecular recognition. Those ligands are based on N-substituted-4,4’-bipyridinium monocation and N,N’-disubstituted-4,4’-bipyridinium dication carrying one or several carboxylate groups. Our synthetic strategy and new results will be described in this poster, taking the [Cd4Cl6L3](CdCl4) compound as example, with L = 4,4’-bipy-(C6H4COO)2. In addition to provide a highly stable structure upon temperature and moisture, this PCP exhibits accessible channels with a large zwitterionic surface area which allow reversible sorption properties of gas and small molecules. The obvious color shift in presence of ammonia vapors offers a high potential for chemical sensors and optical applications.
Type de document :
Poster de conférence
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Contributeur : Okina Univ Angers Connectez-vous pour contacter le contributeur
Soumis le : mardi 5 mai 2020 - 17:04:24
Dernière modification le : jeudi 9 décembre 2021 - 15:46:04


  • HAL Id : hal-02564070, version 1
  • OKINA : ua12472


Maxime Leroux, Marie-Claire Dul, Oksana Toma, Magali Allain, Nicolas Mercier. Porous coordination polymers (PCPs) based on redox ligands. Journées Scientifiques 2015 de la Société chimique de France, Section Bretagne-Pays de la Loire, 2015, Nantes, France. 2015. ⟨hal-02564070⟩



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