1. Changing the Dress to a MOF through Fluorination and Transmetalation. Structural and Gas-Sorption Effects
- Author
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Davide Balestri, Silvia Bracco, Angiolina Comotti, Irene Bassanetti, Cristina Gazzurelli, Paolo Pelagatti, Alessia Bacchi, Stefano Canossa, Balestri, D, Bassanetti, I, Canossa, S, Gazzurelli, C, Bacchi, A, Bracco, S, Comotti, A, and Pelagatti, P
- Subjects
chemistry.chemical_classification ,MOFs, permanent porosity, gas adsorption, selectivity ,010405 organic chemistry ,Ligand ,General Chemistry ,Microporous material ,010402 general chemistry ,Condensed Matter Physics ,CHIM/04 - CHIMICA INDUSTRIALE ,01 natural sciences ,0104 chemical sciences ,chemistry.chemical_compound ,Transmetalation ,CHIM/02 - CHIMICA FISICA ,Dicarboxylic acid ,Adsorption ,chemistry ,Selective adsorption ,Amide ,Polymer chemistry ,General Materials Science ,Metal-organic framework - Abstract
Two novel pillared Zn(II)-based Metal–Organic Frameworks were de novo synthesized exploiting N,N′-(1,1′-biphenyl)-4,4′-diylbis-4-pyridinecarboxamide (bpba) and its fluorinated analogous N,N′-(perfluoro-1,1′-biphenyl-4,4′-diyl)diisonicotinamide (F-bpba) as suitable pillar linkers and 2,6-naphthalene dicarboxylic acid as carboxylic ligand. The resulting heteroleptic MOFs, namely, PUM210, [Zn4(bpba)1.5·(ndc)4·(H2O)]n and PUM210F, [Zn3(F-bpba)1·(ndc)3·(DMF)]n, feature an uncommon truncation of the Zn(II) paddle-wheel nodes along the pillaring direction. PUM210 and PUM210F exhibit a polycatenated architecture, resulting in microporous channels decorated by amide moieties. The activated forms show a permanent porosity and a selective adsorption of CO2 over N2. Moreover, the partially transmetalated Cu-PUM210 and Cu-PUM210F were obtained by convenient transmetalation protocol and their adsorption propriety toward CO2 were subsequently investigated.
- Published
- 2018