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Published on: May 22, 2015
Effective hydrogen isotope separation by a robust flexible calix[4]resorcinarene-based porous organic cage
Yanan Guo1,2, Jiajun Feng1,2, Wenjing Wang2,3
1China College of Chemistry, Fuzhou University, Fuzhou, Fujian 350116, China. ydq@fjirsm.ac.cn.
Abstract:
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 trans-1,4-cyclohexanediamine. This cage exhibits large cavity volumes of up to ∼3824 Å3, high specific surface areas of up to 966 m2 g-1, and impressive D2 (146 cm3 g-1) and H2 (133 cm3 g-1) 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-1 at 77 K and 1 bar.
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