Adsorptive separation of picoline isomers by adaptive calix[3]acridan crystals

Abstract

The exploration of macrocycle-based nonporous adaptive crystals (NACs) for adsorption and separation has been one of the hotspots in supramolecular chemistry and crystal engineering. Herein, we developed calix[3]acridan-based NACs to...

Recent advances in the synthesis and applications of macrocyclic arenes

“…The separation of picoline isomers is also important and challenging because of their similar physical and chemical properties. Very recently, Chen's group 129 used a calix[3]acridan-based nonporous adaptive crystal material 16 to selectively separate 4-picoline (4-MP) from its isomer mixtures by simple solid-vapor adsorption (Fig. 65).…”

Potential of nonporous adaptive crystals for hydrocarbon separation

“…21-I), which were able to separate 2-MP, 3-MP and 4-MP. 228 H22a could adsorb three single-component methylpyridine isomers, accompanied by This journal is © The Royal Society of Chemistry 2023 crystal structure transformations from H22a to (2-MP) 2 @H22, (3-MP) 2 @H22 and (4-MP) 2 @H22. In the single crystal structure of (2-MP) 2 @H22, H22 was arranged in a window-to-window mode; one 2-MP molecule was loaded in the cavity of H22 and another 2-MP molecule was included in the self-assembled channel and sandwiched by two H22 molecules (Fig.…”

Separation of Cyclohexanone and Cyclohexanol by Adaptive Pillar[5]arene Cocrystals Accompanied by Vapochromic Behavior

“…Recently, macrocycle-based nonporous adaptive crystals (NACs) have emerged as a burgeoning area in supramolecular chemistry, showing great potential in the selective separation of important chemical feedstocks. − NACs possess the merits of easy preparation, low cost, and good moisture and thermal stability. Very recently, we reported the first example of two-component adaptive macrocycle cocrystals (MCCs) by the marriage of a macrocycle and cocrystal engineering, showing vapochromic behavior to haloalkanes .…”