Bates, G.W., Gale, P.A. and Light, M.E.
Isophthalamides and 2,6-dicarboxamidopyridines with pendant indole groups: a 'twisted' binding mode for selective fluoride recognition
Chemical Communications, (21), . (doi:10.1039/b703905k).
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Two cleft-like anion receptors have been synthesised that
contain indole hydrogen-bond donors and show fluoride
selectively in a DMSO–water solution with crystallographic
studies showing a ‘twisted’ binding mode for fluoride in the
Twisted structures have long been of particular interest to the
supramolecular chemistry community. From early work on metal
templated helices1 through more recent work on foldamers2 and
organic helical structures,3 these species are not only elegantly
designed but can also play roles in molecular recognition and
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