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首页> 外文期刊>Polyhedron: The International Journal for Inorganic and Organometallic Chemistry >Synthesis, structures and oxygen atom transfer catalysis of oxo-bridged molybdenum(V) complexes with heterocyclic bidentate ligands (N,X) X = S, Se
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Synthesis, structures and oxygen atom transfer catalysis of oxo-bridged molybdenum(V) complexes with heterocyclic bidentate ligands (N,X) X = S, Se

机译：具有杂环双齿配体（N，X）的氧桥联钼（V）配合物的合成，结构和氧原子转移催化X = S，Se

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摘要

The dinuclear mu-oxomolybdenum(V) complexes [Mo2O3(PyS)(4)] (1), [Mo2O3(PySe)(4)] (2) and [Mo2O3(4-CF3-PymS)(4)] (3) were obtained by similar reactions of the [MoO2Cl2(DME)] precursor with the corresponding heterocyclic bidentate (N,X) ligands, X = S, Se, where PyS, PySe and 4-CF3-PymS are the anions of pyridine-2-thione, pyridine-2-selenolato and 4-trifluoromethyl-2-pyrimidinthiol, respectively. All compounds were characterized by elemental analysis, IR, NMR, EI-MS spectroscopy and X-ray diffraction. The crystal structures of 1-3 all include the common [Mo2O3](4+) core. Compounds 1 and 2 are isostructural. The catalytic oxo-transfer properties of the molybdenum(V) compounds 1 and 2 were studied by the use of PPh3 in DMSO with a considerably higher catalytic activity for the thionato containing complex I than for its selenolato containing analogue 2. (C) 2007 Elsevier Ltd. All rights reserved.
机译：双核钼氧钼（V）络合物[Mo2O3（PyS）（4）]（1），[Mo2O3（PySe）（4）]（2）和[Mo2O3（4-CF3-PymS）（4）]（3 ）是通过[MoO2Cl2（DME）]前体与相应的杂环双齿（N，X）配体X = S，Se进行的类似反应获得的，其中PyS，PySe和4-CF3-PymS是吡啶2的阴离子-硫酮，吡啶-2-硒醇和4-三氟甲基-2-嘧啶硫醇。所有化合物均通过元素分析，IR，NMR，EI-MS光谱和X射线衍射进行表征。 1-3的晶体结构均包含共同的[Mo2O3]（4+）核。化合物1和2是同构的。通过在DMSO中使用PPh3研究了钼（V）化合物1和2的催化氧羰基转移性质，该物质对含硫亚硫酸酯的配合物I的催化活性比对含硒代硒酸酯的类似物2的催化活性高得多。（C）2007 Elsevier有限公司。保留所有权利。

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