Synthesis and study of a new diamidodipyrromethane macrocycle. An anion receptor with a high sulfate-to-nitrate binding selectivity.
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.
Sessler
Jonathan L
JL
Department of Chemistry and Biochemistry, 1 University Station, A5300, University of Texas at Austin, Austin, TX 78712-0165, USA. sessler@mail.utexas.edu
Katayev
Evgeny
E
Pantos
G Dan
GD
Ustynyuk
Yuri A
YA