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Structural Transformation in Metal–Organic Frameworks for Reversible Binding of Oxygen
Author(s) -
Zeng JinYue,
Wang XiaoShuang,
Qi YongDan,
Yu Yun,
Zeng Xuan,
Zhang XianZheng
Publication year - 2019
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201902810
Subject(s) - anthracene , chemistry , metal organic framework , photochemistry , oxygen , combinatorial chemistry , organic chemistry , adsorption
Abstract Polycyclic aromatic derivatives can trap 1 O 2 to form endoperoxides (EPOs) for O 2 storage and as sources of reactive oxygen species. However, these materials suffer from structural amorphism, which limit both practical applications and fundamental studies on their structural optimization for O 2 capture and release. Metal–organic frameworks (MOFs) offer advantages in O 2 binding, such as clear structure–performance relationships and precise controllability. Herein, we report the reversible binding of O 2 is realized via the chemical transformation between anthracene‐based and the corresponding EPO‐based MOF. It is shown that anthracene‐based MOF, the framework featuring linkers with polycyclic aromatic structure, can rapidly trap 1 O 2 to form EPOs and can be restored upon UV irradiation or heating to release O 2 . Furthermore, we confirm that photosensitizer‐incorporated anthracene‐based MOF are promising candidates for reversible O 2 carriers controlled by switching Vis/UV irradiation.