Calixarenes capped by di- and triamide bridges on the lower rim were used to synthesize 2,3,4,5 chromogenic molecules supplied with indophenol indicator unit(s). The endo/exo quinoid tautomerism of the chromophore and the mechanism of the coloration process were studied by NMR spectroscopy.
|Number of pages||11|
|Journal||European Journal of Organic Chemistry|
|Publication status||Published - Jan 1 2001|
- NMR spectroscopy
ASJC Scopus subject areas
- Physical and Theoretical Chemistry
- Organic Chemistry