Photocatalytic properties of two POM-templated organic–inorganic hybrid compounds

•Two POM-templated organic–inorganic hybrid compounds were synthesized.•Compounds 1–2 were both 3D supramolecules packing through weak interactions.•Photocatalytic activity of compounds 1–2 was investigated under UV light.

Reported are the rational synthesis, structures and properties of two novel organic–inorganic hybrid compounds, [Ag3(3-bpo)4(PMo12O40)]·~ 1.5H2O (1) and [Ag4(3-bpo)2(CH3CN)2(SiW12O40)] (2), where 3-bpo = 2,5-bis(3-pyridyl)-1,3,4-oxadiazole. Crystal structural analysis indicates that compound 1 exhibits one dimensional zigzag chains with the discrete [PMo12O40]3 − anions as guest molecules. While in compound 2 the POM anions as μ2-linkage bridging two chains construct supramolecular sheet. Both compounds were synthesized under hydrothermal conditions and characterized by single-crystal X-ray diffraction, IR spectroscopy, elemental analysis and TG. Furthermore, the excellent photocatalytic activity of compounds 1–2 was investigated under UV light irradiation.

Graphical abstractIn hydrothermal conditions, two compounds [Ag3(3-bpo)4(PMo12O40)]·~ 1.5H2O (1) and [Ag4(3-bpo)2(CH3CN)2(SiW12O40)] (2) (3-bpo = 2,5-bis(3-pyridyl)-1,3,4-oxadiazole) were successfully synthesized. Crystal structural analysis indicates that compound 1 exhibits one dimensional zigzag chains with the discrete [PMo12O40]3 − anions as guest molecules. While in compound 2 the POM anions as μ2-linkage bridging two chains construct supramolecular sheet. Both compounds were synthesized under hydrothermal conditions and characterized by single-crystal X-ray diffraction, IR spectroscopy, elemental analysis and TG. Furthermore, the excellent photocatalytic activity of compounds 1–2 was investigated under UV light irradiation.Figure optionsDownload full-size imageDownload as PowerPoint slide