Breaking the photoswitch speed limit
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Published:2023-11-20
Issue:1
Volume:14
Page:
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ISSN:2041-1723
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Container-title:Nature Communications
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language:en
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Short-container-title:Nat Commun
Author:
Thaggard Grace C., Park Kyoung Chul, Lim JaewoongORCID, Maldeni Kankanamalage Buddhima K. P., Haimerl Johanna, Wilson Gina R., McBride Margaret K., Forrester Kelly L., Adelson Esther R., Arnold Virginia S., Wetthasinghe Shehani T., Rassolov Vitaly A.ORCID, Smith Mark D.ORCID, Sosnin Daniil, Aprahamian IvanORCID, Karmakar Manisha, Bag Sayan Kumar, Thakur Arunabha, Zhang Minjie, Tang Ben ZhongORCID, Castaño Jorge A., Chaur Manuel N., Lerch Michael M.ORCID, Fischer Roland A.ORCID, Aizenberg JoannaORCID, Herges RainerORCID, Lehn Jean-Marie, Shustova Natalia B.ORCID
Abstract
AbstractThe forthcoming generation of materials, including artificial muscles, recyclable and healable systems, photochromic heterogeneous catalysts, or tailorable supercapacitors, relies on the fundamental concept of rapid switching between two or more discrete forms in the solid state. Herein, we report a breakthrough in the “speed limit” of photochromic molecules on the example of sterically-demanding spiropyran derivatives through their integration within solvent-free confined space, allowing for engineering of the photoresponsive moiety environment and tailoring their photoisomerization rates. The presented conceptual approach realized through construction of the spiropyran environment results in ~1000 times switching enhancement even in the solid state compared to its behavior in solution, setting a record in the field of photochromic compounds. Moreover, integration of two distinct photochromic moieties in the same framework provided access to a dynamic range of rates as well as complementary switching in the material’s optical profile, uncovering a previously inaccessible pathway for interstate rapid photoisomerization.
Funder
National Science Foundation Camille and Henry Dreyfus Foundation SC EPSCoR GEAR, USC ASPIRE Award
Publisher
Springer Science and Business Media LLC
Subject
General Physics and Astronomy,General Biochemistry, Genetics and Molecular Biology,General Chemistry,Multidisciplinary
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