Selective complexation and efficient separation of cis/ trans-1,2-dichloroethene isomers by a pillar[5]arene

RSC Adv. 2020 Dec 21;10(73):45112-45115. doi: 10.1039/d0ra09307f. eCollection 2020 Dec 17.

Abstract

The complexation and separation of industrially important cis- and trans-1,2-dichloroethene (cis- and trans-DCE) isomers using perethylated pillar[5]arene (EtP5) are described. EtP5 exhibits considerable binding capability for the trans-DCE isomer over the cis-DCE in organic solution. Furthermore, nonporous adaptive crystals (NACs) of EtP5 can efficiently separate trans-DCE from a 50 : 50 (v/v) cis/trans-isomer mixture.