A Self-Assembled Palladium(II) Barrel for Binding of Fullerenes and Photosensitization Ability of the Fullerene-Encapsulated Barrel

Purba, PC and Maity, M and Bhattacharyya, S and Mukherjee, PS (2021) A Self-Assembled Palladium(II) Barrel for Binding of Fullerenes and Photosensitization Ability of the Fullerene-Encapsulated Barrel. In: Angewandte Chemie - International Edition, 60 (25). pp. 14109-14166.

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Abstract

Fullerene extracts obtained from fullerene soot lack their real application due to their poor solubility in common solvents and difficulty in purification. Encapsulation of these extracts in a suitable host is an important approach to address these issues. We present a new Pd6 barrel (1), which is composed of three 1,4-dihydropyrrolo3,2-bpyrrole panels, clipped through six cis-PdII acceptors. Large open windows and cavity make it an efficient host for a large guest. Favorable interactions between the ligand and fullerene (C60 and C70) allows the barrel to encapsulate fullerene efficiently. Thorough investigation reveals that barrel 1 has a stronger binding affinity towards C70 over C60, resulting in the predominant extraction of C70 from a mixture of the two. Finally, the fullerene encapsulated barrels C60�1 and C70�1 were found to be efficient for visible-light-induced singlet oxygen generation. Such preferential binding of C70 and photosensitizing ability of C60�1 and C70�1 are noteworthy. © 2021 Wiley-VCH GmbH

Item Type:	Journal Article
Publication:	Angewandte Chemie - International Edition
Publisher:	John Wiley and Sons Inc
Additional Information:	The copyright for this article belongs to John Wiley and Sons Inc
Department/Centre:	Division of Chemical Sciences > Inorganic & Physical Chemistry
Date Deposited:	17 Aug 2021 06:24
Last Modified:	17 Aug 2021 06:24
URI:	http://eprints.iisc.ac.in/id/eprint/69193

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