Crystal and molecular structure of 2-(2-pyridyl)-indandione-1,3 and a zinc(II) complex with this ligand

The crystal structures of 2-(2-pyridyl)-indandione-1,3 C₁₄H₉NO₂ (HL, I) and the zinc complex ZnL ₂(Dmso) (II) (where Dmso is dimethyl sulfoxide) with this ligand are determined. The specific features of the crystal structures of both compounds are considered. A comparative analysis of the supramolecular aggregates in crystals of these compounds is performed. It is demonstrated that the supramolecular dimers retain their structure in the crystals of compounds I and II. These dimers are involved in weak secondary interactions (usually of one type) with the formation of spatially more complex supramolecular associates, such as chains, ribbons, and layers.