We prepared a rigid triptycene derivative with three 2-ureido-4[1H]-pyrimidinone terminals, which was employed to construct a hydrogen-bonded organic polymer (HOP-1). The supramolecular organic polymer HOP-1 was permanently porous and exhibited outstanding sorption selectivity towards carbon dioxide over nitrogen (96 at 273 K).
X. Huang, Y. Zhao and B. Han, Chem. Commun., 2016, 52, 6597 DOI: 10.1039/C6CC02206E
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