Fluorescence enhancement via structural rigidification inside a self-assembled Pd4 molecular vessel

Ahmed, S and Howlader, P and Bhattacharyya, S and Mondal, S and Zangrando, E and Mukherjee, PS (2022) Fluorescence enhancement via structural rigidification inside a self-assembled Pd4 molecular vessel. In: Chemical Communications .

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Abstract

Restriction of intramolecular motion (RIM) is fundamental for the high emission of aggregation-induced emission (AIE)-active molecules in aggregates or the solid-state. However, they are weakly emissive in dilute solution, which limits their application in dilute solutions. A Pd4 molecular vessel (MP1) was constructed by assembling cis-(en)Pd(NO3)2 (M) with a tetradentate donor (L) in a 2 : 1 molar ratio. The active intramolecular motions of an AIE active molecule SG are restricted in the narrow cavity of MP1 upon encapsulation. As a result, SG displayed significant enhancement in its emission in dilute solution upon addition of MP1. This strategy of achieving high emission of AIE active compounds in dilute solution by confinement driven RIM might have potential in designing materials for high emission in the aggregated state as well as in dilute solution.

Item Type:	Journal Article
Publication:	Chemical Communications
Publisher:	Royal Society of Chemistry
Additional Information:	The copyright for this article belongs to Royal Society of Chemistry.
Department/Centre:	Division of Chemical Sciences > Inorganic & Physical Chemistry
Date Deposited:	28 Oct 2022 05:00
Last Modified:	28 Oct 2022 05:00
URI:	https://eprints.iisc.ac.in/id/eprint/77674

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