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首页> 外文期刊>Polyhedron: The International Journal for Inorganic and Organometallic Chemistry >Tetrahydropoxen: 2,2 '-(1,2-ethanediylbis(iminomethylene))bis(pyridine N-oxide) and its complexes. X-ray structure of [Cu(H-4-poxen)H2O](ClO4)center dot H2O and [Co(poxen)H2O](ClO4)(2)
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Tetrahydropoxen: 2,2 '-(1,2-ethanediylbis(iminomethylene))bis(pyridine N-oxide) and its complexes. X-ray structure of [Cu(H-4-poxen)H2O](ClO4)center dot H2O and [Co(poxen)H2O](ClO4)(2)

机译:四氢氧磷:2,2'-(1,2-乙二基双(亚氨基亚甲基))双(吡啶N-氧化物)及其络合物。 [Cu(H-4-poxen)H2O](ClO4)中心点H2O和[Co(poxen)H2O](ClO4)(2)的X射线结构

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摘要

The condensation reaction of 2-pyridinecarboxaldehyde N-oxide with ethylenediamine yields the tetradentate ligand L-1 = poxen. Hydrogenation then produces tetrahydropoxen, L-2 = H-4-poxen, which has been isolated in a free form. Several metal complexes of the formula [M(H-4-poxen)](ClO4)(2) . nH(2)O have been prepared (M=Mn, Cu and Zn) and investigated. The X-ray structure of [Cu(H-4-poxen)H2O] (ClO4)(2) . H2O shows that the copper atom is pentacoordinate, the poxen ligand forming a base of the tetragonal pyramid; the aqua ligand is situated in the apical position inside the cavity formed by the ligand arms. In contrast, in the case of [Co(poxen)H2O] (ClO4)(2), the apical aqua ligand is situated outside the 'cavity' formed by the dehydrogenated ligand arms. (C) 2000 Elsevier Science Ltd All rights reserved. [References: 15]
机译:2-吡啶甲醛N-氧化物与乙二胺的缩合反应产生四齿配体L-1 =泊松。氢化然后产生四氢氧磷,L-2 = H-4-氧磷,已以游离形式分离。式[M(H-4-poxen)](ClO4)(2)的几种金属配合物。制备了nH(2)O(M = Mn,Cu和Zn)并进行了研究。 [Cu(H-4-poxen)H2O](ClO4)(2)的X射线结构。 H 2 O表明铜原子是五配位的,泊松配体形成四角锥的基部。水配体位于由配体臂形成的空腔内的顶端位置。相反,在[Co(poxen)H2O](ClO4)(2)的情况下,顶端水基配体位于脱氢配体臂形成的“空腔”的外部。 (C)2000 Elsevier Science Ltd保留所有权利。 [参考:15]

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