Solvothermal Treatment of Triangular Molybdenum(IV) Oxo Species - A New Approach for the Synthesis of New Molybdenum Oxo Clusters
Solvothermal Treatment of Triangular Molybdenum(IV) Oxo Species - A New Approach for the Synthesis of New Molybdenum Oxo Clusters
复制标题
DOI：
10.1002/ejic.201100306
复制
发表时间：
2011-09
影响因子：
2.3
通讯作者：
Jun Zhao;Li Xu
中科院分区：
文献类型：
--
作者：
Jun Zhao;Li Xu
用一种前所未有的溶剂热处理方法成功地合成了三角钼氧簇合物K2[Mo3O4(Hnta)3](1，Nta=三乙酸氮酯)和H_2bipy[Mo3O4(C2O4)3(H2O)3](2，bipy=4，4‘-联吡啶)，合成了一系列新的低核钼(IV-VI)氧簇合物3-5。2在吡啶(Py)中进行溶剂热氧化，得到了前所未有的十核混价氧簇合物[MoIV6MoVI4O24py8]·py(4)。进一步的氧化产物[MoV8MoVI2O26py8]·2py(5)是在较高的温度和较长的反应时间下得到的。对簇合物3-5进行了X射线结晶学、元素分析、UV/Vis和IR光谱表征。
An unprecedented solvothermal treatment of triangular molybdenum oxo clusters K2[Mo3O4(Hnta)3] (1, nta = nitrilotriacetate) and H2bipy[Mo3O4(C2O4)3(H2O)3] (2, bipy = 4,4′-bipyridine) was successfully established to prepare a series of new oligonuclear Mo(IV–VI) oxo clusters 3–5. Hydrothermal treatment of 1 in aqueous solution produced the hexanuclear cluster [MoIV6O10(bpy)4(Hnta)2]·10H2O (3, bpy = 2,2′-bipyridine). Solvothermal oxidation of 2 was performed in pyridine (py) to yield the unprecedented decanuclear mixed-valent oxo cluster [MoIV6MoVI4O24py8]·py (4). The further oxidized product [MoV8MoVI2O26py8]·2py (5) was obtained from a reaction at a higher temperature and for a longer duration. Clusters 3–5 have been characterized by X-ray crystallography, elemental analysis, and UV/VIS and IR spectroscopy.