M. Latva, S. Kulmala, K. Haapakka
Jun 30, 1996
Citations
0
Influential Citations
11
Citations
Journal
Inorganica Chimica Acta
Abstract
Abstract 2,6-Bis[N,N-bis(carboxymethyl)aminomethyl]-4-benzoylphenol forms with europium(III) three structurally different luminescent chelates in aqueous sample solutions. Only the chelate with a dimeric structure, where two Eu(III) cations are encapsulated into the chelating cage consisting of two deprotonated phenolic hydroxyl groups and four 2,2′-(methylenenitrilo)bis(acetic acid) moieties having strong interactions with the deprotonated hydroxyl groups, is capable of initiating the sensitized 5 D 0 → 7 F j transitions of Eu (III) with an exceptionally long lifetime of 0.97 ms.