A fluorescent chemosensor signalling only Hg(II) and Cu(II) in water

Juyoung Yoon, Norman E. Ohler, David H. Vance, Wade D. Aumiller, Anthony W. Czarnik

Research output: Contribution to journalArticlepeer-review

169 Scopus citations

Abstract

Geometric immobilization of polyamine ligands is expected to change their binding properties toward practical ion discrimination. Chemosensor 5 senses only two transition metal ions in water- Hg(II) (K(d) ≤ 1 μM) and Cu(II) (K(d) 56 μM)- which can be compared with bindings of a non-immobilized reference compound (9-(trpnmethyl)-anthracene; 3) with Hg(II) (K(d) 14 μM) and Cu(II) (K(d) 39 μM). A related bridged cyclen derivative (7) showed no effect on fluorescence by any metal ion examined.

Original languageEnglish
Pages (from-to)3845-3848
Number of pages4
JournalTetrahedron Letters
Volume38
Issue number22
DOIs
StatePublished - 2 Jun 1997

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