A nonporous crystalline organic cage for selective water uptake and storage
A nonporous crystalline organic cage (Oba-cage) effectively captures and stores water from a mixed organic solvent/water system. The observed water uptake capacities of 106.2 mg g<sup>-1</sup> (10.6 wt%) at 0 °C and 102.1 mg g<sup>-1</sup> (10.2 wt%) at 25 °C are significant for nonporous cages, as collectively confirmed by different techniques. This excellent water uptake and storage performance is attributed to the strong host-guest O-H⋯N hydrogen bonding interactions between the imine nitrogen atoms of the cage and water molecules. These findings establish organic cages as a promising class of compounds for water harvesting and storage applications.
Authors
- Basem Moosa (ORCID: https://orcid.org/0000-0002-2350-4100)
- Soumaya Khlifi
- Niveen M. Khashab (ORCID: https://orcid.org/0000-0003-2728-0666)
- Lukman O. Alimi (ORCID: https://orcid.org/0000-0003-2626-6328)
- Weibin Lin (ORCID: https://orcid.org/0000-0001-6839-5561)
- Nida Khalfay (ORCID: https://orcid.org/0009-0000-0793-1199)
Institutions
- King Abdullah University of Science and Technology (SA)
Publication Details
- Journal
- Chemical Science
- Published
- 2025-11-10
- DOI
- https://doi.org/10.1039/d5sc06328k
- Citations
- 1
- Primary Topic
- Supramolecular Chemistry and Complexes
- Type
- article
- Field-Weighted Citation Impact
- 0.94
Funders
- King Abdullah University of Science and Technology