Three new compounds based on polyoxometalates and transition metal complexes have been prepared and characterized by IR and UV-vis spectroscopy, powder XRD, photoluminescence analysis, elemental analysis and X-ray diffraction analysis. Single crystal X-ray analysis reveals that both {[PMo₁₀V₄O₄₂][Cu(phen)]₂}[Cu(im)₂][Cu(phen)(im)]₂ (1) (im = imidazole, phen = 1,10-phenanthroline) and {[PMo₉V₅O₄₂][Cu₂(2,2′-bpy)₂(C₂O₄)]}[Cu(2,2′-bpy)₂(H₂O)][Cu(2,2′-bpy)₂(Cl)]·3H₂O (2) (bpy = bipyridine) contain three types of copper complexes, any one of which is different from the others. {[PMo₈V₆O₄₂][Cu(DABCO)]₂[Cu(phen)₂]}·3H₂O (3) (DABCO = triethylenediamine) exhibits a novel 2-D layered framework structure constructed from [PMo₈V₆O₄₂]⁴⁻ and two different types of copper complexes, and also compound 3 is the first extended POM compound based on {M(phen)₂} bridges. In addition, the catalytic properties of compounds 1–3 have been investigated and all of them are excellent catalysts for the epoxidation of styrene.

中文翻译：

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基于相似的钼-钒簇和几种类型的铜配合物的三种新化合物†

制备了三种基于多金属氧酸盐和过渡金属配合物的新化合物，并通过红外和紫外-可见光谱，粉末XRD，光致发光分析，元素分析和X射线衍射分析对其进行了表征。单晶X射线分析表明，{[PMo ₁₀ V ₄ O ₄₂ ] [Cu（phen）] ₂ } [Cu（im）₂ ] [Cu（phen）（im）] ₂（1）（im =咪唑，phen = 1,10-菲咯啉）和{[PMo ₉ V ₅ O ₄₂ ] [Cu ₂（2,2'-bpy）₂（C ₂ O ₄）]} [Cu（2,2'-bpy）₂（H ₂O）] [Cu（2,2'-bpy）₂（Cl）]·3H ₂ O（2）（bpy =联吡啶）包含三种类型的铜配合物，其中任何一种均与其他配合物不同。{[PMo ₈ V ₆ O ₄₂ ] [Cu（DABCO）] ₂ [Cu（phen）₂ ]}·3H ₂ O（3）（DABCO =三亚乙基二胺）展示了一种由[PMo ₈ V ₆ O ₄₂ ] ^4-和两种不同类型的铜络合物，以及化合物3是第一个基于{M（phen）_2的扩展POM化合物}桥梁。此外，还对化合物1-3的催化性能进行了研究，它们都是苯乙烯环氧化的出色催化剂。