A new 3D hybrid network based on octamolybdates: The coexistence of common helix and meso-helix

A new three-dimensional (3D) hybrid compound [Cu2(btb)4][β-Mo8O26] (1), [btb = 1,4-bis(1,2,4-triazol-1-yl)butane], was hydrothermally synthesized and characterized by elemental analysis, IR, TG, and single crystal X-ray diffraction. In compound 1, the copper(II)-btb motif, containing both common helix and meso-helix, displays a 3D 4-net structure with a dia topology, which is further connected by the tetradentate β-[Mo8O26]4− clusters to construct a hybrid network. Additionally, luminescent property of compound 1 is investigated in the solid state at room temperature.