5,5′-Selenobis(2-hydroxybenzaldehyde)

Abstract

In the title molecule, C14H10O4Se, the dihedral angle between the two benzene rings is 74.6 (1)°. Both hydroxybenzaldehyde groups form intramolecular O—H...O hydrogen bonds. In the crystal, pairs of molecules are linked by pairs of weak C—H...π(arene) interactions, forming centrosymmetric dimers. In addition, molecules are linked by π–π stacking interactions, with a centroid–centroid distance of 3.785 (2) Å, forming chains along the c axis.