Beilstein J. Org. Chem.2015,11, 373–384, doi:10.3762/bjoc.11.43
and a sila-Sonogashira coupling as the polycondensation technique. The fluorescence of the cinnoline-containing polymers in THF was highly sensitive to quenching by Pd2+ ions.
Keywords: cinnolines; fluorescence quenching; Pd2+ detection; poly(aryleneethynylene)s; Sonogashira coupling; Introduction
. Such materials find widespread use in sensing of metal ions and anions, detection of explosives and various biomolecules [2−4]. Among the great variety of known conjugated polymers, poly(aryleneethynylene)s (PAEs) are one of the most promising materials in the search for new chemical sensors [7].
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dispersity (ĐM = ) of 2.5 for both compounds. In accordance with this data, compounds 10a and 10b should be defined as oligomers. However the common accepted abbreviation for this class of compounds is PAEs (poly(aryleneethynylene)s). This name has also been applied before to compounds with a similar range
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Graphical Abstract
Figure 1:
Recent examples of PAEs and their application for the detection of Hg2+ (a) [11], Ni2+ (b) [12], explosives...