Photoluminescences and 3D supramolecular structure with unique dimeric Zn (II) units featuring 2-substituted 8-hydroxyquinoline

► 2-substituted-8-hydroxyquinoline ligand (HL) was synthesized and characterized. ► Dimeric complex 1 was fabricated by self-assembly of Zn(II) ions with ligand HL. ► The supramolecular structure of 1 features a lamellar solid. ► The luminescent properties of complex 1 were investigated.