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. 2022 Sep 19;21(1):447–477. doi: 10.1007/s10311-022-01509-7

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© The Author(s) 2022

Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.

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Fig. 5 — (a) Basic structure of metal–organic frameworks and (b) the cubic structure of metal–organic framework-5. Metal–organic frameworks are produced via self-assembly of metal ions or clusters and organic linkers or struts. Metal–organic framework-5 contains zinc, oxygen, hydrogen, and carbon. Metal–organic framework-5 has a zinc-oxygen cage with a 7.16 Å diameter. Metal–organic framework-5 has a phenylene ring and carboxylate moiety. The diameter of metal–organic framework-5 is 25.85 Å