Effect of fluorescence quenching model on quinoline derivative with cobalt chloride metal ion using steady state and time resolved spectroscopic methods

Melavanki, R and Kumar, V and Singh, D and Dhiman, N and Koppal, VV and Patil, NR (2022) Effect of fluorescence quenching model on quinoline derivative with cobalt chloride metal ion using steady state and time resolved spectroscopic methods. In: Luminescence .

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Abstract

Quinoline derivative, i.e. quinilone yellow with the scientific name sodium 2-(2,3-dihydro-1,3-dioxo-1H-inden-2-yl)quinoline-6,8-disulphonate (SQDS) is analysed for fluorescence resonance energy transfer (FRET). Fluorescence quenching mechanism is studied by employing steady state and transient state spectroscopic measurements. Cobalt chloride is used as quencher in the present study. Linearity was observed in Stern�Volmer plots for transient state as well as steady state. This was further attributed to a mechanism of collisional quenching. Efficiency in fluorescence quenching is observed as there is a correlation between quenching constants of both transient and steady state. A significant energy transfer is reported between metal ions and SQDS molecule, according to FRET theory. Characterization results are studied and analysed. Application in the field of non-linear optics are predicted for SQDS. With Kurtz and Perry powder technique, SHG (second harmonic generation) efficiency was measured using Q-switched mode locked Nd:YAG laser emitting 1064 nm the first time with this compound. © 2022 John Wiley & Sons Ltd.

Item Type:	Journal Article
Publication:	Luminescence
Publisher:	John Wiley and Sons Ltd
Additional Information:	The copyright for this article belongs to John Wiley and Sons Ltd
Department/Centre:	Division of Chemical Sciences > Inorganic & Physical Chemistry
Date Deposited:	18 May 2022 09:55
Last Modified:	18 May 2022 09:55
URI:	https://eprints.iisc.ac.in/id/eprint/71848

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