Coordination-Assisted Reversible Photoswitching of Spiropyran-Based Platinum Macrocycles

Bhattacharyya, S and Maity, M and Chowdhury, A and Saha, ML and Panja, SK and Stang, PJ and Mukherjee, PS (2020) Coordination-Assisted Reversible Photoswitching of Spiropyran-Based Platinum Macrocycles. In: Inorganic Chemistry, 59 (3). pp. 2083-2091.

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Abstract

Control over the stimuli-responsive behavior of smart molecular systems can influence their capability to execute complex functionalities. Herein, we report the development of a suite of spiropyran-based multi-stimuli-responsive self-assembled platinum(II) macrocycles (5-7), rendering coordination-assisted enhanced photochromism relative to the corresponding ligands. 5 showed shrinking and swelling during photoreversal, while 6 and 7 are fast and fatigue-free supramolecular photoswitches. 6 turns out to be a better fatigue-resistant photoswitch and can retain an intact photoswitching ability of up to 20 reversible cycles. The switching behavior of the macrocycles can also be precisely controlled by tuning the pH of the medium. Our present strategy for the construction of rapid stimuli-responsive supramolecular architectures via coordination-driven self-assembly represents an efficient route for the development of smart molecular switches

Item Type:	Journal Article
Publication:	Inorganic Chemistry
Publisher:	American Chemical Society
Additional Information:	The copyright for this article belongs to the American Chemical Society.
Department/Centre:	Division of Chemical Sciences > Inorganic & Physical Chemistry
Date Deposited:	02 Feb 2023 07:12
Last Modified:	02 Feb 2023 07:12
URI:	https://eprints.iisc.ac.in/id/eprint/79735

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