New Group 13 MIL‐53 Derivates based on 2, 5‐Thiophenedicarboxylic Acid. Issue 21 (24th October 2017)

• Record Type: Journal Article
• Authors: Tschense, Carsten B. L.; Reimer, Nele; Hsu, Ching‐Wen; Reinsch, Helge; Siegel, Renée; Chen, Wen‐Jin; Lin, Chia‐Her; Cadiau, Amadine; Serre, Christian; Senker, Jürgen; Stock, Norbert
• Is Part Of: Zeitschrift für anorganische und allgemeine Chemie. Volume 643:Issue 21(2017)
• Page Start: 1600
• Page End: 1608
• Publication Date: 2017-10-24
• Subjects: Metal‐organic framework (MOF) -- MIL‐53 -- NMR crystallography -- Adsorption; Chemistry, Inorganic -- Periodicals; Chemistry -- Periodicals; 540
• DOI: 10.1002/zaac.201700260
• Languages: English
• ISSNs: 0044-2313

Abstract

Abstract : A new rigid metal‐organic framework (MOF) with MIL‐53 topology built of 2, 5‐thiophenedicarboxylate (TDC) and Al, Ga, or In is reported. Its structure contains chains of trans corner sharing MO6 octahedra, connected by the linker molecules to form microporous square shaped 1D channels. A combination of powder X‐ray diffraction (PXRD), density functional theory (DFT) calculations, and 1 H, 13 C, and 27 Al solid‐state NMR spectroscopy (ssNMR) was used to analyse the structures in detail. The synthesis is easily scaled‐up using microwave assisted solvothermal conditions. All materials possess a high thermal stability up to 420 °C in air and permanent porosity towards N2, H2, CO2, and CH4 . Al‐MIL‐53‐TDC shows a high specific surface area of a s, BET = 1150 m 2 · g –1 with a micropore volume of V mic = 0.48 cm 3 · g –1 as well as water uptake of 5.5H2 O molecules per sum formula (469 mg· g –1 ) with an a sigmoidal shape, advantageous for heat‐transformation processes. Noteworthy, this material adsorbs 2.1 wt % H2 at –196 °C and 1 bar, which surpasses other Al‐MIL‐53 compounds based on linear functionalized terephthalates. Abstract :