Assembly of two-fold interpenetrated silver supramolecular coordination polymer using Keggin phosphotungstate template

• Keggin-type [PW12O40]3 − anions as templates lead to an unusual hybrid material.
• It is the first two-fold interpenetrating supramolecular Keggin–POMMOF
• Helical hole constructed from alternate left- and right-handed chains is formed.
• Compound 1 shows fluorescent properties in the solid state at room temperature.
• Compound 1 displays good electrocatalytic activity on the reduction of nitrite.

An unusual supramolecular coordination polymer [{Ag(bpy)}2(Hbpy)][PW12O40] (1) has been synthesized under hydrothermal conditions and structurally characterized by elemental analysis, IR, TG, PXRD, XPS, UV–vis, and single-crystal X-ray diffraction. In compound 1, Keggin-type [PW12O40]3 − clusters as templates induce the supramolecular [{Ag(bpy)}2(Hbpy)]3 + layer to 3D hexagonal metal–organic framework (MOF), which represents two-fold interpenetrating MOF with 1-D helical channels constructed from alternate left- and right-handed chains. In addition, compound 1 exhibits good electrocatalytic activity on the reduction of nitrite and fluorescent properties in the solid state at room temperature.

Keggin-type [PW12O40]3 − clusters as templates lead to an unusual hybrid material, which presents the first two-fold interpenetrating POMMOF with 1-D helical channels constructed from alternate left- and right-handed chains. The compound displays good electrocatalytic activity on the reduction of nitrite and fluorescent properties in solid state at room temperature.Figure optionsDownload as PowerPoint slide