K. Prabakaran, R. Manivannan, Hyeong-Yun Oh
Apr 28, 2021
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Journal
Dyes and Pigments
Abstract
Abstract The synthesis of novel acridine organe (AO) with UV absorber containing dyes obtained by the condensation of AO dye 1 and 3,6-bis(dimethylamino)acridine-9(10H)-thione with (2-hydroxy-4-(3-iodopropoxy)phenyl)(phenyl)methanone. These dyes were characterized by 1HNMR, 13CNMR, HRMS, investigated photophysical properties of the solvatochromic effect in different solvents and pH effects from 2 to 10 for commercial acridine orange and our synthesised dyes 2–3. Furthermore, we have calculated their absorption, fluorescence maxima, molar extinction coefficients and stokes shifts. Besides, irradiation and lightfastness stability studies have compared to the commercial dye 1 and synthesised dyes 2–3 using absorption, fluorescence spectra. Our synthesised dyes 2–3 have shown excellent stability on exposing irradiation light compare to dye 1 due to the presence of a UV absorber in the molecule. Further, the results were supported by DFT computation calculations using the Gaussian 09 program.