Separation of xylenes by enclathration

05 May 2020

The isomers of xylene have been separated by enclathration using three host compounds: 9,9?-bianthryl (H1), 9,9?-spirobifluorene (H2) and trans-2,3-dibenzoylspiro[cyclopropane-1,9-fluorene] (H3). The structures of each host with a single xylene isomer have been elucidated and, for H1, the relative lattice energies of the clathrates with ortho- and para-xylene have been evaluated.