MOLECULAR CLIPS BASED ON THE CROWN ETHERS: PROSPECTIVE RECEPTORS FOR THE Sr2+CATIONS REMOVAL
Journal Title: Вісник Одеського національного університету. Хімія - Year 2014, Vol 19, Issue 3
Abstract
Strontium cation complexation with diphenylglycoluril-based molecular clips containing 12-crown-4, 15-crown-5, 18-crown-6 and 21-crown-7 residues was qualitatively studied by FAB mass-spectrometry. It was found that at low concentrations of Sr2+ cations molecular clip with fragments of 15-crown-5 is the most effective, and it is assumed that it is due to the formation of the most stable «sandwich-type» complex. The higher removal degree with an excess of Sr2+ cations is observed in the case of molecular clips with fragments of 18-crown-6 due to the formation of 1:2 composition complexes.
Authors and Affiliations
A. Yu. Lyapunov
Keywords
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- EP ID EP408577
- DOI 10.18524/2304-0947.2014.3(51).40403
- Views 77
- Downloads 0
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