POM-supported metal carbonyl derivatives (PMCDs) represent a family of tremendous potential catalysts owing to their peculiar physical and chemical properties. Yet low-valence transition metal-substituted Dawson-type PMCD catalysts are uncommon. Hence, we synthesized a tricobalt-substituted PMCDs by conventional aqueous solution method, [Na(H₂O)₅](NH₄)₇[P₂W₁₅O₅₆Co₃(H₂O)₃(OH)₃Re(CO)₃]·13H₂O (1), and characterized by single crystal X-ray diffraction crystallography, IR, and thermogravimetric analyses (TGA), etc. The obtained compound 1 was employed as a catalyst for the oxidation of diphenylmethane (DPM) to benzophenone, giving 96.8% yield in the presence of tert-butyl hydroperoxide (TBHP) and pyridine. The control experiments indicate that Co metal ion plays an important role in the catalytic reactions. As a side note, the electrospray ionization mass spectrometry (ESI-MS) and UV spectroscopy showed that 1 can retain its integrity in solution, and magnetic measurements indicated that 1 exhibited a weaker ferromagnetic interaction at low temperature.

中文翻译：

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基于三钴（II）取代的道森型R羰基衍生物作为催化剂的烷烃的氧化官能化。

POM负载的金属羰基衍生物（PMCD）由于其独特的物理和化学性质而代表了一系列巨大的潜在催化剂。低价过渡金属取代的道森型PMCD催化剂并不常见。因此，我们通过常规水溶液法[Na（H ₂ O）₅ ]（NH ₄）₇ [P ₂ W ₁₅ O ₅₆ Co ₃（H ₂ O）₃（OH）₃ Re（ CO）₃ ]·13H ₂ O（1），并通过单晶X射线衍射晶体学，IR和热重分析（TGA）等进行表征。获得的化合物1被用作将二苯甲烷（DPM）氧化为二苯甲酮的催化剂，其收率达96.8％。的存在下叔丁基过氧化氢（TBHP）和吡啶。对照实验表明，Co金属离子在催化反应中起重要作用。附带说明，电喷雾电离质谱（ESI-MS）和紫外光谱表明1可以在溶液中保持其完整性，磁测量表明1在低温下显示出较弱的铁磁相互作用。