0000000000077516
AUTHOR
Maxime Leroux
Flexible vs Rigid Networks of Two Isoreticular Viologen-Carboxylate based PCPs: the Ligand Size Effect
International audience
Porous Coordination Polymer Based on Bipyridinium Carboxylate Linkers with High and Reversible Ammonia Uptake
The zwitterionic bipyridinium carboxylate ligand 1,1'-bis(4-carboxyphenyl)-4,4'-bipyridinium (pc1) in the presence of cadmium chloride affords novel porous coordination polymers (PCPs): [Cd4(pc1)3Cl6]·CdCl4·guest (1) crystallizing in the P3̅1c space group. In the structure, [Cd4Cl6(CO2)6] building units are linked together by six pc1 ligands, leading to a 3D high-symmetrical network exhibiting hexagonal channels along the c axis. The walls of this PCP consist of cationic electron-acceptor bipyridinium units. The PCP 1 reversibly adsorbs H2O and CH3OH up to about 0.1 g/g at saturation showing the adsorption isotherms characteristic of a moderately hydrophilic sorbent. Adsorption of ammonia (…
Insight into the Mechanism of Water Adsorption/Desorption in Hydrophilic Viologen-Carboxylate Based PCP
A water stable and highly hydrophilic porous coordination polymer based on viologen-carboxylate type ligand, the 4,4′-bipyridinium,1,1-bis(3-carboxyphenyl) (pc2), is obtained by the solvothermal method: [Cd3(pc2) (BTC)2(H2O)2]·6H2O ([1(H2O)2]·6H2O; BTC3– = 1,3,5-carboxybenzene). Its crystal structure and the ones of two partially dehydrated phases have been determined, allowing insight into the mechanism of water adsorption/desorption of this PCP material. It is shown that the dehydrated compound [1] first adsorbs two water molecules which fill the pores, leading to [1]·2H2O. On the other hand, the partial dehydration of the as-synthesized compound leads to the intermediate phase [1(H2O)]·3…
CCDC 1534485: Experimental Crystal Structure Determination
Related Article: Maxime Leroux, Nicolas Mercier, Jean-Pierre Bellat, Guy Weber, Igor Bezverkhyy|2017|Cryst.Growth Des.|17|2828|doi:10.1021/acs.cgd.7b00279
CCDC 1534001: Experimental Crystal Structure Determination
Related Article: Maxime Leroux, Nicolas Mercier, Jean-Pierre Bellat, Guy Weber, Igor Bezverkhyy|2017|Cryst.Growth Des.|17|2828|doi:10.1021/acs.cgd.7b00279
CCDC 1473082: Experimental Crystal Structure Determination
Related Article: Maxime Leroux, Nicolas Mercier, Magali Allain, Marie-Claire Dul, Jens Dittmer, Abdel Hadi Kassiba, Jean-Pierre Bellat, Guy Weber, and Igor Bezverkhyy|2016|Inorg.Chem.|55|8587|doi:10.1021/acs.inorgchem.6b01119
CCDC 1534483: Experimental Crystal Structure Determination
Related Article: Maxime Leroux, Nicolas Mercier, Jean-Pierre Bellat, Guy Weber, Igor Bezverkhyy|2017|Cryst.Growth Des.|17|2828|doi:10.1021/acs.cgd.7b00279