Ontology type: schema:ScholarlyArticle
2007-12
AUTHORSL. G. Minyaeva, R. V. Tyurin, V. V. Mezheritskii, A. V. Tsukanov, E. N. Shepelenko, A. D. Dubonosov, V. A. Bren’, V. I. Minkin
ABSTRACTSchiff bases derived from 7-hydroxy-4-methyl-2-oxobenzo[h]chromene-8-carbaldehyde in solution exist as equilibrium mixtures of benzoid and quinoid tautomers. The fraction of the quinoid tautomer increases with rise in solvent polarity. The Schiff base containing a benzo-15-crown-5 fragment on the nitrogen atom was shown to be a new ambident chemosensor capable of selectively binding transition metal cations via reaction at the o-hydroxyaldehyde imine fragment and alkaline-earth metals via host-guest interaction with the crown ether moiety. This compound exhibits a pronounced sensor activity toward Mg2+ and Ba2+ ions and is a selective naked-eye fluorescent chemosensor for Cu2+ and Co2+ ions. More... »
PAGES1836-1841
http://scigraph.springernature.com/pub.10.1134/s1070428007120172
DOIhttp://dx.doi.org/10.1134/s1070428007120172
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