Renuka, CG and Kumar, Anil and Pramod, AG and Shivashankar, K and Puttaraj, KB and Basappa, M and Nadaf, YF (2019) Photophysical properties of novel fluorescent 1-(3-Hydroxy-benzofuran-2-yl)-benzof]chromen-3-one derivative: models for correlation solvent polarity scales. In: CANADIAN JOURNAL OF PHYSICS, 97 (5). pp. 548-557.
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Photophysical and spectral properties of a new benzofuran-derivative-based fluorescent probe 1-(3-Hydroxybenzofuran-2-yl)-benzof]chromen-3-one (1-HBBC) were considered in various parameters of solvents, making use of UV-Vis absorption and fluorescence emission spectroscopy. The absorption and fluorescence emission peak maxima were observed between 260-349 and 400-485 nm, respectively, prompting Stokes' shift between 13 993 and 18 495 cm(-1). Diverse solvent parameters have been utilized to understand the solvatochromism of 1-HBBC. This information is applied to understand the effects of the solvent, on the shifting in the spectra of 1-HBBC and access the execution of empirical solvatochromic models: the well-known Kamlet-Taft model and two recent Catalan models. Linear solvation energy relationships proposed by the Kamlet-Taft treatment for the 1-HBBC molecule indicate that it is appealing as a molecule for the hydrogen bond and solvent polarity properties it has exhibited. The models offer good statistical execution for all solvents studied in this work. A general decency of fit is found for benzofuran values for the models' contractions, whereas these solvents are incorporated directly into the solvatochromic analysis. These reductions are comparable for the Kamlet-Taft and Catalan 4P models but important for the Catalan 3P model. The results shown herein can be used for outlining new luminescent tests for nonpolar and polar microenvironment.
| Item Type: | Journal Article |
|---|---|
| Publication: | CANADIAN JOURNAL OF PHYSICS |
| Publisher: | CANADIAN SCIENCE PUBLISHING, NRC RESEARCH PRESS |
| Additional Information: | copyright for this article belongs to Canadian Science Publishing |
| Keywords: | electronic spectra; Kamlet-Taft; Catalan; acidity basicity; OLED |
| Department/Centre: | Division of Chemical Sciences > Solid State & Structural Chemistry Unit |
| Date Deposited: | 22 Jul 2019 10:26 |
| Last Modified: | 22 Jul 2019 10:26 |
| URI: | http://eprints.iisc.ac.in/id/eprint/62879 |
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