Fine Tuning and Specific Binding Sites with a Porous Hydrogen-Bonded Metal-Complex Framework for Gas Selective Separations

Published

May 14, 2018

Author(s)

Zongbi Bao, Danyan Xie, Ganggang Chang, Hui Wu, Liangying Li, Wei Zhou, Hailong Wang, Zhiguo Zhang, Huabin Xing, Qiwei Yang, Michaek J. Zaworotko, Qilong Ren, Banglin Chen

Abstract

Research on HOFs has been developed for quite a long time; however, those with both established permanent porosities and functional properties are extremely rare due to weak hydrogen-bonding interactions among molecular organic linkers which are much more fragile and difficult to stabilize. Herein, through judiciously combining the superiority of both the moderately stable coordination bonds in MOFs and hydrogen bonds, we have realized a microporous hydrogen-bonded metallotecton framework HOF_-21, which not only shows permanent porosity but also exhibits highly selective separation performance of C₂H₂/C₂H₄ at room temperature. The outstanding separation performance can be ascribed to sieving effect confined be the fine-tuning pores and the superimposed hydrogen-bonding interaction between C₂H₂ and SiF₆^2- on both ends as validated by both modeling and neutron powder diffraction experiments. More importantly, the bright perspective of such a new HOF materials for the industrial usage.

Citation

Journal of American Chemical Society

Volume

140

Pub Type

Journals

Download Paper

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Keywords

Porous Material, Hydrogen-Bonded Framework, Gas Separation

Citation

Bao, Z. , Xie, D. , Chang, G. , Wu, H. , Li, L. , Zhou, W. , Wang, H. , Zhang, Z. , Xing, H. , Yang, Q. , Zaworotko, M. , Ren, Q. and Chen, B. (2018), Fine Tuning and Specific Binding Sites with a Porous Hydrogen-Bonded Metal-Complex Framework for Gas Selective Separations, Journal of American Chemical Society, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=925612 (Accessed November 12, 2025)