Synthesis and characterization of the highest connected 3D α-metatungstate POM/TMC hybrid with AgI⋯AgI interactions

A novel 3D hybrid based on transition metal complexes (TMCs) modified α-metatungstate polyoxometalate (POMs), Na4[Ag6L4][H2W12O40] · 12H2O (1) (L = nicotinate), has been conventionally synthesized and characterized by elemental analysis, IR, UV, TG and single-crystal X-ray diffraction. Each of the W12 clusters is surrounded by 10 Ag centers, which represents the highest connected number of the α-metatungstate POMs to date. Additionally, compound 1 is stable in air and shows photoluminescence at room temperature.

Graphical abstractA novel 3D α-metatungstate POM/TMC hybrid with AgI⋯AgI interactions, Na4[Ag6L4][H2W12O40] · 12H2O (1) (L = nicotinate), has been conventional synthesized and characterized. The periphery of α-metatungstate clusters contains ten Ag–L units, which represents the highest coordination number of the α-metatungstate POMs to date.Figure optionsDownload full-size imageDownload as PowerPoint slide