Investigation of the azacrown-ether substituted naphtopyranesстатья
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Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
Аннотация:The study of the complexation of 3,3-diphenyl-3H-benzo[f]chromenes containing an aza-15-crown-5-ether or morpholine units with Mg2+, Ba2+ and pb(2+) in acetonitrile are reported. The spectroscopic and kinetic behaviour of the photomerocyanine isomers of these chromenes is strongly affected by complexation with metal cations. In order to interpret the experimental data, a formation of anion-"capped" complexes was supposed.