Light-driven self-assembly of spiropyran-functionalized covalent organic framework.

Autor: Das G; Chemistry Program, New York University Abu Dhabi (NYUAD), Saadiyat Island, Abu Dhabi, United Arab Emirates., Prakasam T; Chemistry Program, New York University Abu Dhabi (NYUAD), Saadiyat Island, Abu Dhabi, United Arab Emirates., Alkhatib N; Chemistry Program, New York University Abu Dhabi (NYUAD), Saadiyat Island, Abu Dhabi, United Arab Emirates., AbdulHalim RG; Chemistry Program, New York University Abu Dhabi (NYUAD), Saadiyat Island, Abu Dhabi, United Arab Emirates., Chandra F; Chemistry Department, College of Science, United Arab Emirates University, P.O. Box 15551, Al-Ain, United Arab Emirates., Sharma SK; Engineering Division, New York University Abu Dhabi (NYUAD), Abu Dhabi, United Arab Emirates., Garai B; Chemistry Program, New York University Abu Dhabi (NYUAD), Saadiyat Island, Abu Dhabi, United Arab Emirates.; NYUAD Water Research Center, New York University Abu Dhabi (NYUAD), Saadiyat Island, Abu Dhabi, United Arab Emirates., Varghese S; CTP, New York University Abu Dhabi, 129188, Abu Dhabi, United Arab Emirates., Addicoat MA; School of Science and Technology, Nottingham Trent University, Clifton Lane, NG11 8NS, Nottingham, UK., Ravaux F; Quantum research center, Technology Innovation Institute, P.O. Box 9639, Abu Dhabi, United Arab Emirates., Pasricha R; CTP, New York University Abu Dhabi, 129188, Abu Dhabi, United Arab Emirates., Jagannathan R; Engineering Division, New York University Abu Dhabi (NYUAD), Abu Dhabi, United Arab Emirates., Saleh N; Chemistry Department, College of Science, United Arab Emirates University, P.O. Box 15551, Al-Ain, United Arab Emirates.; Zayed Center for Health Sciences, United Arab Emirates University, P.O. Box 15551, Al Ain, United Arab Emirates., Kirmizialtin S; Chemistry Program, New York University Abu Dhabi (NYUAD), Saadiyat Island, Abu Dhabi, United Arab Emirates.; Center for Smart Engineering Materials, New York University Abu Dhabi (NYUAD), Abu Dhabi, United Arab Emirates., Olson MA; Department of Physical and Environmental Sciences, Texas A&M University Corpus Christi, 6300 Ocean Dr., Corpus Christi, TX, 78412, USA. mark.olson@tamucc.edu., Trabolsi A; Chemistry Program, New York University Abu Dhabi (NYUAD), Saadiyat Island, Abu Dhabi, United Arab Emirates. ali.trabolsi@nyu.edu.; NYUAD Water Research Center, New York University Abu Dhabi (NYUAD), Saadiyat Island, Abu Dhabi, United Arab Emirates. ali.trabolsi@nyu.edu.
Jazyk: angličtina
Zdroj: Nature communications [Nat Commun] 2023 Jun 23; Vol. 14 (1), pp. 3765. Date of Electronic Publication: 2023 Jun 23.
DOI: 10.1038/s41467-023-39402-8
Abstrakt: Controlling the number of molecular switches and their relative positioning within porous materials is critical to their functionality and properties. The proximity of many molecular switches to one another can hinder or completely suppress their response. Herein, a synthetic strategy involving mixed linkers is used to control the distribution of spiropyran-functionalized linkers in a covalent organic framework (COF). The COF contains a spiropyran in each pore which exhibits excellent reversible photoswitching behavior to its merocyanine form in the solid state in response to UV/Vis light. The spiro-COF possesses an urchin-shaped morphology and exhibits a morphological transition to 2D nanosheets and vesicles in solution upon UV light irradiation. The merocyanine-equipped COFs are extremely stable and possess a more ordered structure with enhanced photoluminescence. This approach to modulating structural isomerization in the solid state is used to develop inkless printing media, while the photomediated polarity change is used for water harvesting applications.
(© 2023. The Author(s).)
Databáze: MEDLINE
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