title: Synergistic effect of ligating and ionic functions, prearranged on a calix[4]arene.
abstract: The covalent attachment of two CMPO-functions and two anionic Cosan groups to the narrow rim of tert-butylcalix[4]arene leads to a dramatic increase of the extraction efficiency for the cone isomer; Am(3+) is removed from 5 x 10(-8) M solution to more than 99% by a single extraction step with a 3 x 10(-6) M solution of the calixarene.
authors.affiliation: Institute of Inorganic Chemistry, 25068, Rez near Prague, Czech Republic.
authors.forename: Libor
authors.initials: L
authors.lastname: Mikulásek
authors.forename: Bohumír
authors.initials: B
authors.lastname: Grüner
authors.forename: Crenguta
authors.initials: C
authors.lastname: Danila
authors.forename: Volker
authors.initials: V
authors.lastname: Bohmer
authors.forename: Josef
authors.initials: J
authors.lastname: Cáslavský
authors.forename: Pavel
authors.initials: P
authors.lastname: Selucký