{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"submitter":["Nguyen HL"],"funding":["Defense Advanced Research Projects Agency","Studienstiftung des Deutschen Volkes","University of California Berkeley","Deutsche Akademie der Naturforscher Leopoldina - Nationale Akademie der Wissenschaften"],"pagination":["926-932"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC9336147"],"repository":["biostudies-literature"],"omics_type":["Unknown"],"volume":["8(7)"],"pubmed_abstract":["We report a postsynthetic strategy and its implementation to make covalent organic frameworks (COFs) with irreversible hydrazide linkages. This involved the synthesis of three 2D and 3D hydrazine-linked frameworks and their partial oxidation. The linkage synthesis and functional group transformation-hydrazine and hydrazide-were evidenced by <sup>15</sup>N multi-CP-MAS NMR. In addition, the isothermal water uptake profiles of these frameworks were studied, leading to the discovery of one hydrazine-hydrazide-linked COF suitable for water harvesting from air in arid conditions. This COF displayed characteristic S-shaped water sorption profiles, a steep pore-filling step below 18% relative humidity at 25 °C, and a total uptake capacity of 0.45 g g<sup>-1</sup>. We found that even small changes"],"journal":["ACS central science"],"pubmed_title":["Hydrazine-Hydrazide-Linked Covalent Organic Frameworks for Water Harvesting."],"pmcid":["PMC9336147"],"funding_grant_id":["LPDS 2019-02","HR0011-21-C-0020"],"pubmed_authors":["Hanikel N","Mockel A","Gropp C","Lund A","Nguyen HL","Yaghi OM"],"additional_accession":[]},"is_claimable":false,"name":"Hydrazine-Hydrazide-Linked Covalent Organic Frameworks for Water Harvesting.","description":"We report a postsynthetic strategy and its implementation to make covalent organic frameworks (COFs) with irreversible hydrazide linkages. This involved the synthesis of three 2D and 3D hydrazine-linked frameworks and their partial oxidation. The linkage synthesis and functional group transformation-hydrazine and hydrazide-were evidenced by <sup>15</sup>N multi-CP-MAS NMR. In addition, the isothermal water uptake profiles of these frameworks were studied, leading to the discovery of one hydrazine-hydrazide-linked COF suitable for water harvesting from air in arid conditions. This COF displayed characteristic S-shaped water sorption profiles, a steep pore-filling step below 18% relative humidity at 25 °C, and a total uptake capacity of 0.45 g g<sup>-1</sup>. We found that even small changes","dates":{"release":"2022-01-01T00:00:00Z","publication":"2022 Jul","modification":"2025-04-18T18:09:13.521Z","creation":"2025-04-07T05:40:21.037Z"},"accession":"S-EPMC9336147","cross_references":{"pubmed":["35912353"],"doi":["10.1021/acscentsci.2c00398"]}}