Halide anion recognition by new acyclic quaternary polybipyridinium and polypyridinium receptors

Journal article

New acyclic quaternary polybipyridinium receptors containing 5,5′- and 4,4′-disubstituted N,N′-dimethyl-2,2′-bipyridinium moieties (L1-L6) and a polypyridinium receptor L 7 have been synthesised. 1H NMR titratlon studies in deuteriated DMSO show these receptors complex chloride and bromide anions, with a 1:1 stoichiometric ligand: chloride stability constant evaluations suggesting the amide containing polypyridinium receptor (L7) forms the most thermodynamically stable chloride anion complex. Square-wave voltammetric investigations showed some of the polypyridinium receptors to recognise electrochemically the chloride anion.

Authors: Beer, P; Fletcher, N; Grieve, A; Wheeler, J; Moore, C

• Journal: Journal of the Chemical Society. Perkin Transactions 2
• Volume: 8
• Pages: 1545-1551
• Publication date: 1996-08-01
• ISSN: 0300-9580
• Language: English