Investigating the spectral and electrochemical properties of novel flavin‐pyrene dyads separated via variable spacer

Mouli, M. S. S. Vinod and Agrawal, Harsha Gopal and Maddeshiya, Tarkeshwar and Tamrakar, Arpna and Tripathy, Soumya Ranjan and Pandey, Mrituanjay D. and Mishra, Ashutosh Kumar (2022) Investigating the spectral and electrochemical properties of novel flavin‐pyrene dyads separated via variable spacer. Luminescence. ISSN 1522-7235

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Abstract

The present manuscript describes the synthesis and the photophysical properties of a pair of novel flavin-pyrene dyads where the donor and the acceptor entities are separated via variable spacer. The dyads were well characterized using standard techniques and investigated for their photophysical and electrochemical nature. The observed absorption spectra of the dyads mainly display peaks corresponding to the individual pyrene and flavin units, with some contribution from the flavin entity in the pyrene region. While, strong emission quenching was observed for both the dyads if compared to its individual constituents. However, a careful analysis of the emission spectra and the solvent dependent studies reveals subtle difference between the two dyads. While no significant difference could be observed when excited in the flavin region; excitation at the pyrene region displays a weak and broad emission band in case of closely connected dyad. Further, the electrochemical properties were investigated by cyclic voltammetry and the reduction ability was observed to follow the trend as FlPy2 < FlPy1 < Fl.

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IITH Creators:
IITH CreatorsORCiD
Mishra, Ashutosh Kumarhttp://www.orcid.org/0000-0001-8697-7741
Item Type: Article
Additional Information: SERB India, Grant/Award Number: CRG/2018/001645
Uncontrolled Keywords: flavin,luminescence,pyrene
Subjects: Chemistry
Divisions: Department of Chemistry
Depositing User: . LibTrainee 2021
Date Deposited: 24 Aug 2022 09:52
Last Modified: 24 Aug 2022 09:52
URI: http://raiith.iith.ac.in/id/eprint/10281
Publisher URL: http://doi.org/10.1002/bio.4339
OA policy: https://v2.sherpa.ac.uk/id/publication/7513
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