Vapochromic separation of toluene and pyridine azeotropes using adaptive macrocycle co-crystals
Bin Li, Yun Wang, Yuan Wang, Yue Liu, Lu Wang, Zhiyuan Zhang, Chunju Li
Abstract
The separation of toluene (Tol) and pyridine (Py) azeotropes is significant in the chemical industry. Herein, we present a new method for the energy-efficient separation of Tol and Py using pillar[5]arene-based adaptive macrocycle co-crystals (MCCs) that can selectively separate Py from a Py/Tol equimolar mixture with 99.2% purity, accompanied by vapochromic behavior from white to yellow.
Topics & Concepts
ToluenePyridineChemistryOrganic chemistryPolymer chemistryCrystallography and molecular interactionsSupramolecular Chemistry and ComplexesPorphyrin and Phthalocyanine Chemistry