Isolation of a structural intermediate during switching of degree of interpenetration in a metal-organic framework

Chemical Science
Himanshu AggarwalLeonard J Barbour

Abstract

A known pillared layered metal-organic framework [Co2(ndc)2(bpy)] is shown to undergo a change in degree of interpenetration from a highly porous doubly-interpenetrated framework (2fa) to a less porous triply-interpenetrated framework (3fa). The transformation involves an intermediate empty doubly-interpenetrated phase (2fa') which has been isolated for the first time for this kind of phenomenon by altering the conditions of activation of the as-synthesized material. Interestingly, all the transformations occur in single-crystal to single-crystal fashion. Changes in degree of interpenetration have not been explored much to date and their implications with regard to the porosity of MOFs still remain largely unknown. The present study not only provides a better understanding of such dramatic structural changes in MOF materials, but also describes an original way of controlling interpenetration by carefully optimizing the temperature of activation. In addition to studying the structural mechanism of conversion from 2fa to 3fa, sorption analysis has been carried out on both the intermediate (2fa') and the triply-interpenetrated (3fa) forms to further explain the effect that switching of interpenetration mode has on the porosity of ...Continue Reading

References

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Citations

Oct 6, 2018·Chemical Communications : Chem Comm·Qing-Qing ZhangShuang-Quan Zang
Mar 22, 2019·Chemistry : a European Journal·Xiaomin ZhangJingping Zhang
Dec 4, 2019·Topics in Current Chemistry·Gaurav VermaShengqian Ma
Aug 25, 2020·Acta Crystallographica Section B, Structural Science, Crystal Engineering and Materials·Jong Won ShinDohyun Moon
Jan 19, 2016·Chemical Communications : Chem Comm·Xiang Jiang, Hui-Zhong Kou
Aug 11, 2017·Chemical Society Reviews·Russell E Morris, Lee Brammer
Sep 9, 2018·Nature Communications·Benjamin Le OuayTakashi Uemura
Feb 20, 2016·Nature Chemistry·Alan FergusonShane G Telfer
Nov 1, 2017·Chemistry Central Journal·Alexander J TansellTimothy L Easun
Jan 14, 2021·Inorganic Chemistry·Nadine BönischStefan Kaskel
May 17, 2017·Journal of the American Chemical Society·Benjamin Le OuayTakashi Uemura
Dec 8, 2021·ACS Applied Materials & Interfaces·Mayank GuptaJagadese J Vittal

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Methods Mentioned

BETA
X-ray
single-crystal diffraction

Software Mentioned

Platon

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