TY - JOUR
T1 - Fine Tuning and Specific Binding Sites with a Porous Hydrogen-Bonded Metal-Complex Framework for Gas Selective Separations
AU - Bao, Zongbi
AU - Xie, Danyan
AU - Chang, Ganggang
AU - Wu, Hui
AU - Li, Liangying
AU - Zhou, Wei
AU - Wang, Hailong
AU - Zhang, Zhiguo
AU - Xing, Huabin
AU - Yang, Qiwei
AU - Zaworotko, Michael J.
AU - Ren, Qilong
AU - Chen, Banglin
N1 - Publisher Copyright:
© 2018 American Chemical Society.
PY - 2018/4/4
Y1 - 2018/4/4
N2 - Research on hydrogen-bonded organic frameworks (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 metal-organic frameworks and hydrogen bonds, we have realized a microporous hydrogen-bonded metal-complex or 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 by the fine-tuning pores and the superimposed hydrogen-bonding interaction between C2H2 and SiF62- on both ends as validated by both modeling and neutron powder diffraction experiments. More importantly, the collapsed HOF-21 can be restored by simply immersing it into water or salt solution. To the best of our knowledge, such extraordinary water stability and restorability of HOF-21 were observed for the first time in HOFs, underlying the bright perspective of such new HOF materials for their industrial usage.
AB - Research on hydrogen-bonded organic frameworks (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 metal-organic frameworks and hydrogen bonds, we have realized a microporous hydrogen-bonded metal-complex or 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 by the fine-tuning pores and the superimposed hydrogen-bonding interaction between C2H2 and SiF62- on both ends as validated by both modeling and neutron powder diffraction experiments. More importantly, the collapsed HOF-21 can be restored by simply immersing it into water or salt solution. To the best of our knowledge, such extraordinary water stability and restorability of HOF-21 were observed for the first time in HOFs, underlying the bright perspective of such new HOF materials for their industrial usage.
UR - http://www.scopus.com/inward/record.url?scp=85044922469&partnerID=8YFLogxK
U2 - 10.1021/jacs.7b13706
DO - 10.1021/jacs.7b13706
M3 - Article
C2 - 29540058
AN - SCOPUS:85044922469
SN - 0002-7863
VL - 140
SP - 4596
EP - 4603
JO - Journal of the American Chemical Society
JF - Journal of the American Chemical Society
IS - 13
ER -