Selective adsorption of polycyclic aromatic hydrocarbons by isostructural hydrogen-bonded organic frameworks†
Abstract
Two isostructural hydrogen-bonded organic frameworks (HOFs) with 1-D hexagonal-shaped pores were crystallised using the molecules biphenyl-3,3′,5,5′-tetracarboxylic acid (BPTCA) and [1,1′:4′,1′′]terphenyl- 3,3′′,5,5′′-tetracarboxylic acid (TPTCA). The desolvated HOFs, named BPTCA-2 and TPTCA-2, exhibited selective adsorption towards naphthalene and anthracene, respectively, during competitive adsorption experiments.