title: Tris(triazole) tripodal receptors as selective probes for citrate anion recognition and multichannel transition and heavy metal cation sensing.
abstract: The three-armed pyrenyl-triazole receptor 1 behaves as a highly selective fluorescent molecular sensor for citrate anions over similar carboxylates such as malate or tartrate. In addition, this receptor senses Cu(2+) cations through absorption and emission channels even in the presence of Hg(2+) metal cations. The related three-armed ferrocenyl-triazole receptor 2 behaves as a highly selective dual (redox and chromogenic) chemosensor molecule for Pb(2+) metal cations.
authors.affiliation: Departamento de Química Orgánica, Universidad de Murcia, Campus de Espinardo, 30100, Murcia, Spain. pmolina@um.es atarraga@um.es.
authors.forename: María del Carmen
authors.initials: Mdel C
authors.lastname: González
authors.forename: Francisco
authors.initials: F
authors.lastname: Otón
authors.forename: Arturo
authors.initials: A
authors.lastname: Espinosa
authors.forename: Alberto
authors.initials: A
authors.lastname: Tárraga
authors.forename: Pedro
authors.initials: P
authors.lastname: Molina