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Disulfide Bridged Two-Dimensional Erythrosine-B Polymer as a Tool for Photo-Catalytic C�H Activation

Himanshu, . and Devi, R and Singh, S and Yadav, RK and Nemiwal, M and Gupta, NK and Singh, AK and Singh, AP (2024) Disulfide Bridged Two-Dimensional Erythrosine-B Polymer as a Tool for Photo-Catalytic C�H Activation. In: Catalysis Surveys from Asia .

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Official URL: https://doi.org/10.1007/s10563-023-09421-y


The visible light-assisted photocatalysis approach allows more sustainable and atom-economical C�H bond arylation processes. The polymer-based photocatalysts are an attractive choice because of their variable design and development feasibility as well as effective catalytic applications. In the present work, by following the basic principles of green chemistry, we have chosen an environmentally friendly and biologically suitable chemical i.e. Erythrosine B as a unit molecule for the generation of photocatalyst EP (C20 H8 O5 S4). The generation of EP has been performed via a one-pot solvothermal reaction of Erythrosine B with sulfur powder. The structural analysis of the EP evidence the generation of an interesting example 2D-polymeric assembly where disulfide (�S�S�) units are acting as linkers and show high thermal stability up to 800 °C (39.9 left as a residue). The low optical band gap of 2.08 eV and electrochemical band gap of 2.09 eV favors its catalytic applicability. The catalytic investigation reveals excellent applicability of EP in C�H arylation (yield 98.5 & selectivity 99). © 2024, The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.

Item Type: Journal Article
Publication: Catalysis Surveys from Asia
Publisher: Springer
Additional Information: The copyright for this article belongs to Springer.
Department/Centre: Division of Mechanical Sciences > Centre for Sustainable Technologies (formerly ASTRA)
Date Deposited: 04 Mar 2024 07:15
Last Modified: 04 Mar 2024 07:15
URI: https://eprints.iisc.ac.in/id/eprint/84207

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