ChemInform Abstract: Macrocyclic Ligands with Partially Fluorinated Sidearms: Synthesis and Metal Ion Complexation

Autor:	Evgeny Kobzar, Sadik Elshani, Richard A. Bartsch
Rok vydání:	2010
Předmět:	Substitution reaction Chloroform Aqueous solution Extraction (chemistry) chemistry.chemical_element General Medicine Alkali metal Nitrogen Metal chemistry.chemical_compound chemistry visual_art Polymer chemistry visual_art.visual_art_medium Organic chemistry Methylene
Zdroj:	ChemInform. 31
ISSN:	1522-2667 0931-7597
DOI:	10.1002/chin.200036176
Popis:	Derivatives of aza-12-crown-4, aza-15-crown-5, aza-18-crown-6, 1,10-diaza-18-crown-6 and 1,4,8,12-tetraazacyclopentadecane with partially fluorinated substituents attached to nitrogen are prepared. Their efficiencies and selectivities in alkali metal and silver picrate extractions from aqueous solutions into chloroform are determined and compared with those of appropriate model compounds. Ionophores with longer spacers of –CH 2 OCH 2 CH 2 – and –CH 2 CH 2 OCH 2 CH 2 – between the nitrogen atom(s) of the macroring and the perfluoroalkyl group(s) exhibit greater extraction efficiencies than do analogues with shorter spacers consisting of one or two methylene groups.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::ef7f8d6a04c20e96ca1a22ee7412022f https://doi.org/10.1002/chin.200036176 Zobrazit plný text záznamu Plný text