UV-induced single-crystal-to-single-crystal conversion from a coordination ladder to a two-dimensional network through an intermolecular carbon–carbon coupling reaction

Abstract

UV irradiation of a ladder-like coordination polymer induces a stereospecific [2 + 2] photocycloaddition reaction of each pair of adjacent olefinic ligands from neighboring coordination ladders and thus affords a unique two-dimensional coordination network in a single-crystal-to-single-crystal manner. The conversion exhibits photocontrolled fluorescence.