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High-symmetry hydrogen-bonded organic frameworks: air separation and crystal-to-crystal structural transformation
- Zhou, Dong-Dong, Xu, Yan-Tong, Lin, Rui-Biao, Mo, Zong-Wen, Zhang, Wei-Xiong, Zhang, Jie-Peng
- Chemical communications 2016 v.52 no.28 pp. 4991-4994
- air, chemical compounds, chemical reactions, hydrogen bonding, nitrogen, oxygen, porosity
- By changing the size of a substituent group, benzotrisimidazoles can self-assembly to give a honeycomb-like (hcb) layer or a three-dimensional (10,3)-a (srs) network. While the former is highly stable and rigid with little porosity, the latter can undergo a water-induced reversible crystal-to-crystal transformation and selectively adsorb O₂ over Ar and N₂.