Co(II)-MOF: A Highly Efficient Organic Oxidation Catalyst with Open Metal Sites
Co(II)-MOF: A Highly Efficient Organic Oxidation Catalyst with Open Metal Sites
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Co(II)-MOF：一种具有开放金属位点的高效有机氧化催化剂
DOI：
10.1021/acs.inorgchem.5b01938
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发表时间：
2015
期刊：
影响因子：
--
通讯作者：
Yu-Bin Dong
中科院分区：
文献类型：
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作者：
Jian-Cheng Wang;Feng-Wen Ding;Jian-Ping Ma;Qi-Kui Liu;Jun-Yan Cheng;Yu-Bin Dong
在溶剂热条件下，通过弯曲的咪唑桥联配体与对苯二甲酸(PTA)和Co(OAc)2反应合成了多孔Co(II)-MOF(1)。这种Co(II)-MOF(1)能够通过单晶到单晶的过程在Co(II)中心上进行可逆的甲醇取代反应。具有开放Co(II)位的脱溶Co(II)-MoF(2)非常稳定(最高可达350℃)。此外，2是一种高效的多相催化剂，在较温和的条件下，在叔丁基氢过氧化氢(TBHP)存在下，可用于各种有机底物的氧化。单晶X-射线衍射谱直接证明了Co(II)空位对有机底物氧化的重要性。
A porous Co(II)-MOF (1) was synthesized by the combination of a bent imidazole-bridged ligand andp-phthalic acid (PTA) with Co(OAc)2under solvothermal conditions. This Co(II)-MOF (1) is able to undergo a reversible MeOH substitution reaction on the Co(II) center via a single-crystal-to-single-crystal process. The desolvated Co(II)-MOF (2) with the open Co(II) sites is very stable (up to 350 °C). Furthermore,2is a highly active heterogeneous catalyst for various organic substrates oxidation in the presence oftert-butyl hydroperoxide (TBHP) under milder conditions. The importance of open Co(II) sites in2for the organic substrates oxidation is directly evidenced by the single-crystal X-ray diffraction.