Five new isomorphous inorganic-organic hybrid materials {[M₂(btp)₃(H₂O)₆] (α-SiW₁₂O₄₀)·3H₂O}_n (M = Co(1), Fe(2), Zn(3), Cd(4), Mn(5)) (btp = 2,6-bis(1,2,4-triazol -1-yl)pyridine), have been hydrothermally synthesized and characterized by IR spectroscopy, single-crystal X-ray diffraction, powder X-ray diffraction (PXRD), elemental analysis and thermal gravimetric analysis (TGA). X-ray single crystal diffraction reveals that compounds 1–5 crystallize in trigonal system R3c acentric space group, featuring one 3D sandwich framework, in which the [α-SiW₁₂O₄₀]^4‒ polyoxoanions are present between the metal-organic layers by electrostatic interaction. Moreover, compounds 1–5 display nonlinear optical (NLO) properties and luminescent behaviors at solid state; compound 1 shows the certain photocatalytic activities for the degradation of Rhodamine B (RhB); compounds 1, 4 and 5 exhibit significant electrochemical activities for the reduction of H₂O₂ and compounds 1, 2 and 5 display antiferromagnetic behaviors.

五种新的同构无机-有机杂化材料{[M ₂（btp）₃（H ₂ O）₆ ]（α- SiW ₁₂ O ₄₀）·3H ₂ O} _n（M = Co（1），Fe（2）， Zn（3），Cd（4），Mn（5））（btp = 2,6-双（1,2,4-三唑-1-基）吡啶）已经水热合成并通过红外光谱表征，单-晶体X射线衍射，粉末X射线衍射（PXRD），元素分析和热重分析（TGA）。X射线单晶衍射显示化合物1-5在具有一个3D三明治框架的三角系统R 3 c非中心空间群中结晶，其中[ α- SiW ₁₂ O ₄₀ ] ^4‒聚氧阴离子通过静电相互作用存在于金属有机层之间。此外，化合物1-5在固态时表现出非线性光学（NLO）特性和发光行为。化合物1对罗丹明B（RhB）的降解具有一定的光催化活性。化合物1，4和5表现出显著电化学活动H的还原₂ Ò ₂和化合物1，2和5显示的反铁磁性的行为。