Journalartikel

Autorenliste: Schäfer, TC; Becker, J; Seuffert, MT; Heuler, D; Sedykh, AE; Müller-Buschbaum, K

Jahr der Veröffentlichung: 2022

Zeitschrift: Chemistry - A European Journal

Bandnummer: 28

Heftnummer: 23

ISSN: 0947-6539

eISSN: 1521-3765

Open Access Status: Hybrid

DOI Link: https://doi.org/10.1002/chem.202104171

Verlag: Wiley

Abstract: 
Eight cationic, two-dimensional metal-organic frameworks (MOFs) were synthesized in reactions of the group 13 metal halides AlBr3, AlI3, GaBr3, InBr3 and InI3 with the dipyridyl ligands 1,2-di(4-pyridyl)ethylene (bpe), 1,2-di(4-pyridyl)ethane (bpa) and 4,4'-bipyridine (bipy). Seven of them follow the general formula (2)(infinity)[MX2(L)(2)]A, M=Al, In, X=Br, I, A(-)=[MX4](-), I-, I-3(-), L = bipy, bpa, bpe. Thereby, the porosity of the cationic frameworks can be utilized to take up the heavy molecule iodine in gas-phase chemisorption vital for the capture of iodine radioisotopes. This is achieved by switching between I- and the polyiodide I-3(-) in the cavities at room temperature, including single-crystal-to-single-crystal transformation. The MOFs are 2D networks that exhibit (4,4)-topology in general or (6,3)-topology for (2)(infinity)[(GaBr2)(2)(bpa)(5)][GaBr4](2 center dot)bpa. The two-dimensional networks can either be arranged to an inclined interpenetration of the cationic two-dimensional networks, or to stacked networks without interpenetration. Interpenetration is accompanied by polycatenation. Due to the cationic character, the MOFs require the counter ions [MX4](-), I- or I-3(-) counter ions in their pores. Whereas the [MX4](-), ions are immobile, iodide allows for chemisorption. Furthermore, eight additional coordination polymers and complexes were identified and isolated that elaborate the reaction space of the herein reported syntheses.

Harvard-Zitierstil: Schäfer, T., Becker, J., Seuffert, M., Heuler, D., Sedykh, A. and Müller-Buschbaum, K. (2022) Iodine-Chemisorption, Interpenetration and Polycatenation: Cationic MOFs and CPs from Group 13 Metal Halides and Di-Pyridyl-Linkers, Chemistry - A European Journal, 28(23), Article e202104171. https://doi.org/10.1002/chem.202104171

APA-Zitierstil: Schäfer, T., Becker, J., Seuffert, M., Heuler, D., Sedykh, A., & Müller-Buschbaum, K. (2022). Iodine-Chemisorption, Interpenetration and Polycatenation: Cationic MOFs and CPs from Group 13 Metal Halides and Di-Pyridyl-Linkers. Chemistry - A European Journal. 28(23), Article e202104171. https://doi.org/10.1002/chem.202104171