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New 1,3,5-triphenyl-2-pyrazoline-containing 3-hydroxychromones as highly solvatofluorochromic ratiometric polarity probes
Authors:Denis A. Svechkarev   Ilya V. Bukatich  Andrey O. Doroshenko  
Affiliation:aInstitute for Chemistry at Kharkov V. N. Karazin National University, 4 Svobody sqr., Kharkov 61077, Ukraine
Abstract:Two novel 1,3,5-triphenyl-2-pyrazoline moiety containing derivatives of 3-hydroxychromone were synthesized and studied by 1H NMR, absorption and fluorescence spectroscopy. The prospects of practical application of these compounds exhibiting high solvatofluorochromism into analytical chemistry and biophysics as effective ratiometric polarity probes were discussed proceeding from the data on their fluorescent properties.
Keywords:1,3,5-Triphenyl-2-pyrazoline-substituted 3-hydroxychromone   Multi-band fluorescence emission   ESIPT   Ratiometric probe   Solvatofluorochromism
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