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首页> 外文期刊>Zeitschrift fur Anorganische und Allgemeine Chemie >Trinuclear Cobalt(II) and Zinc(II) Salamo-type Complexes: Syntheses, Crystal Structures, and Fluorescent Properties
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Trinuclear Cobalt(II) and Zinc(II) Salamo-type Complexes: Syntheses, Crystal Structures, and Fluorescent Properties

机译:三核钴(II)和锌(II)Salamo型配合物:合成,晶体结构和荧光性质

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摘要

Two trinuclear Co-II and Zn-II complexes, [(CoL)(2)(OAc)(2)Co] and [(ZnL)(2)(OAc)(2)Zn], with an asymmetric Salentype bisoxime ligand [H2L = 4-(N,N-diethylamine)-2,2'-[ethylenediyldioxybis(nitrilomethylidyne)]diphenol] were synthesized and characterized by elemental analyses, IR, UV/Vis, and fluorescent spectroscopy. The crystal structures of the CoII and ZnII complexes were determined by single-crystal X-ray diffraction methods. The CoII atom is pentacoodinated by N2O2 donor atoms from the (L)(2-) unit and one oxygen atom from the coordinated acetate ion, resulting in a trigonal bipyramid arrangement. With the help of intermolecular hydrogen bonding C-H center dot center dot center dot O and C-H center dot center dot center dot pi interactions, a self-assembled continual zigzag chain-like supramolecular structure is formed. The Zn-II atom is pentacoodinated by N2O2 donor atoms from the (L)(2-) unit and one oxygen atom from the coordinated acetate ion, resulting in an almost regular trigonal bipyramid arrangement. A self-assembled continual 1D supramolecular chain-like structure is formed by intermolecular hydrogen bonding C-H center dot center dot center dot O and C-H center dot center dot center dot pi interactions. Additionally, the photophysical properties of the Co-II and Zn-II complexes were discussed.
机译:两个三核Co-II和Zn-II配合物,[(CoL)(2)(OAc)(2)Co]和[(ZnL)(2)(OAc)(2)Zn],具有不对称的Salentype双肟配体[合成H 2 L = 4-(N,N-二乙胺)-2,2′-[亚乙二氧基二氧基双(亚硝基甲基亚炔基)]二酚],并通过元素分析,IR,UV / Vis和荧光光谱进行表征。 CoII和ZnII配合物的晶体结构通过单晶X射线衍射法确定。 CoII原子被(L)(2-)单元中的N2O2供体原子和配位的乙酸根离子中的一个氧原子五元酸化,形成三角双锥体排列。借助分子间氢键结合,C-H中心点中心点中心点O和C-H中心点中心点中心点pi相互作用,形成自组装的连续之字形链状超分子结构。 Zn-II原子被(L)(2-)单元中的N2O2供体原子和配位的乙酸根离子中的一个氧原子五元酸化,生成几乎规则的三角双锥体排列。通过分子间氢键键合C-H中心点中心点中心点O和C-H中心点中心点中心点pi相互作用形成自组装的连续一维超分子链状结构。此外,还讨论了Co-II和Zn-II配合物的光物理性质。

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