A robust binary supramolecular organic framework (SOF) with high CO2 adsorption and selectivity
Lu, Jian and Perez-Krap, Cristina and Suyetin, Mikhail and Alsmail, Nada H. and Yan, Yong and Yang, Sihai and Lewis, William and Bichoutskaia, Elena and Tang, Chiu C. and Blake, Alexander J. and Cao, Rong and Schröder, Martin (2014) A robust binary supramolecular organic framework (SOF) with high CO2 adsorption and selectivity. Journal of the American Chemical Society, 136 (37). pp. 12828-12831. ISSN 1520-5126
Official URL: http://pubs.acs.org/doi/abs/10.1021/ja506577g
A robust binary hydrogen-bonded supramolecular organic framework (SOF-7) has been synthesized by solvothermal reaction of 1,4-bis-(4-(3,5-dicyano-2,6 dipyridyl)dihydropyridyl)benzene (1) and 5,5’-bis-(azanediyl)-oxalyl-diisophthalic acid (2). Single crystal X-ray diffraction analysis shows that SOF-7 comprises 2 and 1,4-bis-(4-(3,5-dicyano-2,6-dipyridyl)pyridyl)benzene (3), the latter formed in situ from the oxidative dehydrogenation of 1. SOF-7 shows a three-dimensional four-fold interpenetrat-ed structure with complementary O−H···N hydrogen bonds to form channels that are decorated with cyano- and amide-groups. SOF-7 exhibits excellent thermal stability and sol-vent and moisture durability, as well as permanent porosity. The activated desolvated material SOF-7a shows high CO2 sorption capacity and selectivity compared with other po-rous organic materials assembled solely through hydrogen bonding.
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