title: Synthesis and study of a new diamidodipyrromethane macrocycle. An anion receptor with a high sulfate-to-nitrate binding selectivity.
abstract: A new 2,6-diamidopyridinedipyrromethane hybrid macrocycle () has been synthesized that shows a high selectivity for dihydrogen phosphate and hydrogen sulfate relative to nitrate in acetonitrile solution as judged from UV-vis spectrophotometric titrations; this leads to the suggestion that this or related systems might find use in nuclear waste remediation applications requiring the selective removal of hydrogensulfate from nitrate-rich waste mixtures.
authors.affiliation: Department of Chemistry and Biochemistry, 1 University Station, A5300, University of Texas at Austin, Austin, TX 78712-0165, USA. sessler@mail.utexas.edu
authors.forename: Jonathan L
authors.initials: JL
authors.lastname: Sessler
authors.forename: Evgeny
authors.initials: E
authors.lastname: Katayev
authors.forename: G Dan
authors.initials: GD
authors.lastname: Pantos
authors.forename: Yuri A
authors.initials: YA
authors.lastname: Ustynyuk