Syntheses, structures and photoluminescent properties of two metal-organic complexes assembled with a new polycarboxylate ligand

Two new coordination compounds, [Zn2(HL)(L)(H2O)3]n (1), {[Cd3(L)2(H2O)4]∙H2O}n (2) (H3L = 2,4,6-tri (3-carboxyphenylthio) -1,3,5-triazine), were synthesized hydrothermally and characterized by single-crystal X-ray diffraction. 1 is a 1D wave-like infinite chain which is further connected by hydrogen-bond and noncovalent S…S interactions to form a 3D supramolecular architecture. 2 features 2D layered structure and further forms a 3D supramolecular network based on hydrogen-bond interactions. In addition, both 1 and 2 show strong blue photoluminescence at room temperature resulting from ILCT.