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首页> 外文期刊>Dalton transactions: An international journal of inorganic chemistry >Dinuclear first-row transition metal complexes with a naphthyridine-based dinucleating ligand
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Dinuclear first-row transition metal complexes with a naphthyridine-based dinucleating ligand

机译:具有基于萘啶的双核配体的双核第一行过渡金属配合物

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摘要

A series of dinuclear and tetranuclear first-row transition metal complexes were synthesized with the dinucleating ligand 2,7-bis(di(2-pyridyl) fluoromethyl)-1,8-naphthyridine (DPFN). The coordination pocket and rigidity of the DPFN ligand enforces pseudo-octahedral geometries about the metal centers that contain chloro, hydroxo, and aqua bridging ligands forming a "diamond" shaped configuration with metal-metal distances varying from 2.7826(5) to 3.2410(11) angstrom. Each metal center in the dinuclear complexes has an additional open coordination site that accommodates terminal ligands in a syn geometry of particular interest in catalyst design. The complexes are characterized by electronic spectroscopy, electrochemistry and potentiometric titration methods.
机译:用双核配体2,7-双(二(2-吡啶基)氟甲基)-1,8-萘啶(DPFN)合成了一系列双核和四核第一行过渡金属配合物。 DPFN配位体的配位口袋和刚性在包含氯,羟基和水桥配位体的金属中心周围形成伪八面体几何形状,从而形成“菱形”形构型,金属与金属之间的距离从2.7826(5)到3.2410(11)不等)埃。双核络合物中的每个金属中心都有一个额外的开放配位位点,该位点可以在催化剂设计中特别关注的顺式几何结构中容纳末端配体。配合物通过电子光谱,电化学和电位滴定法表征。

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