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Issue 14, 2021
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Selective adsorptive separation of cyclohexane over benzene using thienothiophene cages

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Abstract

The selective separation of benzene (Bz) and cyclohexane (Cy) is one of the most challenging chemical separations in the petrochemical and oil industries. In this work, we report an environmentally friendly and energy saving approach to separate Cy over Bz using thienothiophene cages (ThT-cages) with adaptive porosity. Interestingly, cyclohexane was readily captured selectively from an equimolar benzene/cyclohexane mixture with a purity of 94%. This high selectivity arises from the C–H⋯S, C–H⋯π and C–H⋯N interactions between Cy and the thienothiophene ligand. Reversible transformation between the nonporous guest-free structure and the host–guest assembly, endows this system with excellent recyclability with minimal energy requirements.

Graphical abstract: Selective adsorptive separation of cyclohexane over benzene using thienothiophene cages

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Supplementary files

Article information


Submitted
24 Jan 2021
Accepted
25 Feb 2021
First published
25 Feb 2021

This article is Open Access
All publication charges for this article have been paid for by the Royal Society of Chemistry

Chem. Sci., 2021,12, 5315-5318
Article type
Edge Article

Selective adsorptive separation of cyclohexane over benzene using thienothiophene cages

Y. Ding, L. O. Alimi, B. Moosa, C. Maaliki, J. Jacquemin, F. Huang and N. M. Khashab, Chem. Sci., 2021, 12, 5315
DOI: 10.1039/D1SC00440A

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    [Original citation] - Published by The Royal Society of Chemistry.

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