Two 3D Polyoxometalate‐based Frameworks Constructed from Silver(I)‐triazole/tetrazole Units: Hydrothermal Syntheses,Crystal Structure and Properties

Two polyoxometalate‐based compounds constructed by Keggin/Ag/ L , namely [Ag₁₀( L₁ )₆(H L₁ )₂][HPMo₂^VMo^VI₁₀O₄₀] ( 1 ) and [Ag₁₀( L₂ )₈(H₂SiMo₁₂O₄₀)] ( 2 ) ( L₁ = 1,2,4‐1H‐triazole and L₂ = 1H‐tetrazole), were synthesized under hydrothermal conditions and characterized by single‐crystal X‐ray diffraction, elemental analyses, and IR spectroscopy. In compound 1 , the tetra‐nuclear Ag cycles constructed by four L₁ ligands, two Ag1 ions, and two Ag2 ions. Compound 1 exhibits a two dimensional (2D) metal‐organic layer containing adjacent tetra‐nuclear Ag cycles. Furthermore, the adjacent 2D layers are further extended by Ag ions to form a three dimensional (3D) channel‐like framework, with Keggin anions embedding in the channels. Compound 2 is isostructural with 1 . Additionally, the electrochemical and photocatalytic properties of the title compounds were investigated.