Molybdenum(VI) complexes from diols and aminoalchols: the occurrence of MoO2, Mo2O3, and Mo2O5 core structures
Molybdenum(VI) complexes from diols and aminoalchols: the occurrence of MoO2, Mo2O3, and Mo2O5 core structures
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来自二醇和氨基醇的钼 (VI) 络合物：MoO2、Mo2O3 和 Mo2O5 核心结构的出现
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发表时间：
1980
期刊：
影响因子：
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通讯作者：
S. Yong
中科院分区：
文献类型：
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作者：
C. Knobler;B. Penfold;W. Robinson;C. Wilkins;S. Yong
讨论了钼（VI）对二醇和氨基醇的配位行为，特别是与新确定的参考结构的关系。一种典型的黄色邻二醇衍生物，由[MoO(pin)(Hpin)]2O组成，其核心为Mo2O3。由硝酸三乙酸（H3nta）在低ph下形成的阴离子[{MoO2(Hnta)}2O]2 -中存在Mo2O5核。其中的[{MoO2(Hpin)(OMe)}2]·2MeOH，由黄色的pinacolate衍生而来，x射线分析显示具有甲氧基桥接。Mo2O3芯的桥振动接近750 cm-1，但Mo2O5芯的带模式是可变的。由螯合配体提供氧桥的MoO1bMo振动在625-650 cm-1范围内产生红外带。
The co-ordination behaviour of molybdenum(VI) towards diols and aminoalcohols is discussed, particularly in relation to newly determined reference structures. A pinacol (H2pin) complex, typical of the yellow vicinal diol derivatives, is constituted [MoO(pin)(Hpin)]2O, with an Mo2O3 core. An Mo2O5 core is present in the anion [{MoO2(Hnta)}2O]2–, formed by nitrilotriacetic acid (H3nta) at low pH. Several new complexes in which ligand bridging is inferred have been prepared. One of these, [{MoO2(Hpin)(OMe)}2]·2MeOH, which is derived from the yellow pinacolate, is shown by X-ray analysis to have methoxy-bridging. The bridge vibration from an Mo2O3 core is close to 750 cm–1, but the pattern of bands from an Mo2O5 core is variable. The MoO1bMo vibration involving an oxygen bridge provided by a chelating ligand gives an i.r. band in the region 625–650 cm–1.