Guest-Specific Function of a Flexible Undulating Channel in a 7,7,8,8-Tetracyano-p-quinodimethane Dimer-Based Porous Coordination Polymer

We have designed and synthesized a flexible porous coordination polymer with highly selective capacity to separate benzene from cyclohexane. The undulating channel providing the suitable space for the benzene and the H−π interaction between the host framework and the guest molecules result in this high selectivity.