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Synthesis and characterization of two new tetrapyrazolic macrocycles for the selective extraction of cesium cation
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SYSNO ASEP 0470155 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Synthesis and characterization of two new tetrapyrazolic macrocycles for the selective extraction of cesium cation Author(s) Harit, T. (MA)
Malek, F. (MA)
El Bali, B. (MA)
Dušek, Michal (FZU-D) RID, ORCID, SAI
Kučeráková, Monika (FZU-D) RID, ORCIDNumber of authors 5 Source Title Tetrahedron. - : Elsevier - ISSN 0040-4020
Roč. 72, č. 27-28 (2016), s. 3966-3973Number of pages 8 s. Language eng - English Country GB - United Kingdom Keywords cesium cation ; liquid–liquid extraction ; macrocycle ; pyrazole ; crystal structure Subject RIV BM - Solid Matter Physics ; Magnetism R&D Projects LO1603 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) GA14-03276S GA ČR - Czech Science Foundation (CSF) Institutional support FZU-D - RVO:68378271 UT WOS 000378470800021 EID SCOPUS 84973868362 DOI https://doi.org/10.1016/j.tet.2016.05.026 Annotation The synthesis of two macrocycles containing two bipyrazolic subunits, with different side arms is reported. These structures were characterised by 1H NMR, 13C NMR, mass spectroscopy and elemental analysis. The macrocycle bearing a hydroxyl group in the side arms, crystallizes in triclinic system. It possesses 3D crystal structure with molecules interacting through weak H-bonds. The complexing properties of new macrocycles towards alkaline metal ions (Li+, Na+, K+ and Cs+) were studied by a liquid–liquid extraction process. The percentage values of extraction were determined by atomic absorption measurements and UV spectroscopy. Their macrocyclic cavities are better adapted to extract the Cs+ cation. The macrocycle with side chains bearing donor groups shows the best extraction due to its participation in complexation. Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2017
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