A new 3D Keggin-POM based metal–organic framework of Cu and H2biim: Assembly and properties of fluorescence and electrochemistry

A new 3D Keggin-based metal–organic framework consisting of two kinds of Cu-H2biim chains, Cu10(H2biim)10(PW12O40)2(OH)4·5H2O 1 (H2biim = 2,2′-biimidazole), has been synthesized under hydrothermal conditions. The TGA and PXRD measurements show that the framework is stable after removal of the guest water molecules. In addition, the luminescent and electrochemical properties of 1 have also been investigated.

A new 3D Keggin-based metal–organic framework with Cu···Cu interactions has been synthesized under hydrothermal conditions. Interestingly, two kinds of Cu-H2biim (H2biim = 2,2′-biimidazole) chains coexist in compound 1, which are linked together through polyanions.Figure optionsDownload as PowerPoint slideHighlights
► A new 3D Keggin-based metal-organic framework has been synthesized.
► Two kinds of of Cu-H2biim chains with Cu(I)···Cu(I) interactions coexist.
► The luminescent and electrochemical properties of 1 have also been investigated.