Abstract
A highly luminescent two-dimensional metal-organic framework (MOF) containing continuous pi-stack cylindrical arrays in a backbone has been designed and synthesized. Here, we demonstrate the "supramolecular wire effect" on a MOF surface for fast and reversible solid-state detection of both aliphatic and aromatic nitro explosives via a fluorescence quenching mechanism. A possible quenching mechanism by a supramolecular wire effect has been demonstrated by structural analysis of host-guest pi-stacked interactions and guest sorption studies.