Issue 72, 2021

Molecular recognition and adsorptive separation of m-xylene by trianglimine crystals

Abstract

The separation of xylene isomers is one of the most challenging tasks in the petrochemical industry. Herein, we developed an efficient adsorptive molecular sieving strategy using crystalline trianglimine macrocycle (1) to separate the elusive m-xylene isomer from an equimolar xylenes mixture with over 91% purity. The selectivity is attributed to the capture of the preferred guest with size/shape selectivity and C–H⋯π interactions. Moreover, the trianglimine crystals are readily recyclable due to the reversible transformation between the guest-free and guest-loaded structures.

Graphical abstract: Molecular recognition and adsorptive separation of m-xylene by trianglimine crystals

Supplementary files

Article information

Article type
Communication
Submitted
01 iyl 2021
Accepted
16 avq 2021
First published
16 avq 2021
This article is Open Access
Creative Commons BY-NC license

Chem. Commun., 2021,57, 9124-9127

Molecular recognition and adsorptive separation of m-xylene by trianglimine crystals

A. Dey, S. Chand, M. Ghosh, M. Altamimy, B. Maity, P. M. Bhatt, I. A. Bhat, L. Cavallo, M. Eddaoudi and N. M. Khashab, Chem. Commun., 2021, 57, 9124 DOI: 10.1039/D1CC03531B

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