Effective hydrogen isotope separation by a robust flexible calix[4]resorcinarene-based porous organic cage
Herein, we present the design and synthesis of a new [6 + 12] octahedral-type porous organic cage (POC), namely CPOC-F301, assembled from 6 bowl-shaped tetraformylcalix[4]resorcinarene and 12 flexible <i>trans</i>-1,4-cyclohexanediamine. This cage exhibits large cavity volumes of up to ∼3824 Å<sup>3</sup>, high specific surface areas of up to 966 m<sup>2</sup> g<sup>-1</sup>, and impressive D<sub>2</sub> (146 cm<sup>3</sup> g<sup>-1</sup>) and H<sub>2</sub> (133 cm<sup>3</sup> g<sup>-1</sup>) adsorption capabilities at 77 K and 1 bar. Dynamic breakthrough experiments further demonstrate that CPOC-F301 achieves a separation factor of 1.37 with a breakthrough interval of 7.2 min g<sup>-1</sup> at 77 K and 1 bar.
Authors
- Kongzhao Su (ORCID: https://orcid.org/0000-0001-9557-6982)
- W. C. Wang
- Yanan Guo (ORCID: https://orcid.org/0000-0003-3122-9660)
- Jiajun Feng
- Daqiang Yuan
Institutions
- Chinese Academy of Sciences (CN)
- Fujian Institute of Research on the Structure of Matter (CN)
- University of Chinese Academy of Sciences (CN)
- Fuzhou University (CN)
Publication Details
- Journal
- Dalton Transactions
- Published
- 2026-01-01
- DOI
- https://doi.org/10.1039/d5dt02805a
- Primary Topic
- Supramolecular Chemistry and Complexes
- Type
- article
- Field-Weighted Citation Impact
- 0.00