Coordination-Assisted Reversible Photoswitching of Spiropyran-Based Platinum Macrocycles.

Coordination-Assisted Reversible Photoswitching of Spiropyran-Based Platinum Macrocycles.
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DOI:
10.1021/acs.inorgchem.9b03572
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发表时间:
2020-02-03
影响因子:
4.6
通讯作者:
Mukherjee, Partha Sarathi
Mukherjee, Partha Sarathi
中科院分区:
化学2区
文献类型:
--
作者:
Bhattacharyya, Soumalya;Maity, Manoranjan;Chowdhury, Aniket;Saha, Manik Lal;Panja, Sumit Kumar;Stang, Peter J.;Mukherjee, Partha Sarathi

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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.
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