Inherent Ethyl Acetate Selectivity in a Trianglimine Molecular Solid

Donglin He, Chengxi Zhao, Linjiang Chen, Marc A. Little, Samantha Y. Chong, Rob Clowes, Katherine McKie, Mark G. Roper, Graeme M. Day, Ming Liu, Andrew I. Cooper*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)
24 Downloads (Pure)

Abstract

Ethyl acetate is an important chemical raw material and solvent. It is also a key volatile organic compound in the brewing industry and a marker for lung cancer. Materials that are highly selective toward ethyl acetate are needed for its separation and detection. Here, we report a trianglimine macrocycle (TAMC) that selectively adsorbs ethyl acetate by forming a solvate. Crystal structure prediction showed this to be the lowest energy solvate structure available. This solvate leaves a metastable, “templated” cavity after solvent removal. Adsorption and breakthrough experiments confirmed that TAMC has adequate adsorption kinetics to separate ethyl acetate from azeotropic mixtures with ethanol, which is a challenging and energy-intensive industrial separation.

Original languageEnglish
Pages (from-to)10589-10594
Number of pages6
JournalChemistry - A European Journal
Volume27
Issue number41
Early online date27 May 2021
DOIs
Publication statusPublished - 21 Jul 2021

Keywords

  • crystal structure prediction
  • dynamic separation
  • macrocycles
  • molecular crystals
  • selective adsorption

ASJC Scopus subject areas

  • Catalysis
  • Organic Chemistry

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