Author/Authors :
Matvieiev، نويسنده , , Yuriy and Karpenko، نويسنده , , Iuliia and Kulinich، نويسنده , , Andrii and Ryabitskii، نويسنده , , Aleksey and Pivovarenko، نويسنده , , Vasyl and Shishkina، نويسنده , , Svitlana and Shishkin، نويسنده , , Oleg and Kalchenko، نويسنده , , Vitaly، نويسنده ,
Abstract :
Cup-shaped calix[4]arenes bearing one or two ketocyanine fluorophore fragments at the wide rim of the macrocycle are synthesized by condensation of formyl calix[4]arenes with arylmethylene(hetarylmethylene)cyclopentanones in the presence of the ionic liquid, dimethylammonium dimethylcarbamate (DIMCARB) and characterized using UV–vis and fluorescence spectroscopy. Strong positive solvatofluorochromism for the calixarene ketocyanines is observed.
