• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Acta Crystallographica Section E: Crystallographic Communications >{1-[1-(2-Hy­droxy­phen­yl)ethyl­idene]-2-(pyridin-2-yl-κN)hydrazine-κ2N′,O}{1-[1-(2-oxidophen­yl)ethyl­idene]-2-(pyridin-2-yl-κN)hydrazine-κ2N′,O}nickelate(II) nitrate hemihydrate
【24h】

{1-[1-(2-Hy­droxy­phen­yl)ethyl­idene]-2-(pyridin-2-yl-κN)hydrazine-κ2N′,O}{1-[1-(2-oxidophen­yl)ethyl­idene]-2-(pyridin-2-yl-κN)hydrazine-κ2N′,O}nickelate(II) nitrate hemihydrate

机译：{1- [1-（2-羟基苯基）亚乙基] -2-（吡啶-2-基-κN）肼-κ2N'，O} {1- [1-（2-（氧化苯基）亚乙基] -2-（吡啶-2-基-κN）肼-κ2N'，O}硝酸镍（II）半水合物

获取原文
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The 2-hydrazino­pyridine precursor has been widely used to prepare ligands of various kinds by condensation with carbonyl compounds. These types of ligands are suitable for synthesizing novel transition metal (II) complexes with inter­esting magnetic properties. In this context we have synthesized the ligand 1-(2-hy­droxy­phenyl-2-ethyl­idene)-2-(pyridin-2-yl)hydrazine (HL) which was used in the preparation of the mononuclear title complex, [Ni(C13H12N3O)(C13H13N3O)]NO3·0.5H2O. As a result of the presence of HL and L in the [{Ni(HL)(L)}]+ unit, the complex appears to be a supramolecular dimer composed of the Δ(−) and Λ(−) optical isomers, which are linked by strong hydrogen-bonds. As well as the dimer generated by two mononuclear [{Ni(HL)(L)}]+ cations, the asymmetric unit also contains two nitrate anions and one water mol­ecule. Each Ni atom is coordinated to two ligand mol­ecules by a nitro­gen atom of the pyridine ring, an imine nitro­gen atom and a phenolic oxygen atom of one of the ligand mol­ecules and a phenolate oxygen atom of the other organic mol­ecules. The environment around the cation is a distorted octa­hedron. The basal planes are defined by the two nitro­gen atoms of the pyridine rings and the two phenolic oxygen atoms of the ligand, the apical positions being occupied by the azomethine atoms. The O atoms of one of the nitrate ions are disordered over two sets of sites in a 0.745 (9):0.255 (9) ratio. In the crystal, the dimers are linked by numerous hydrogen bonds, forming a three-dimensional framework.
机译：2-肼基吡啶前体已广泛用于通过与羰基化合物缩合制备各种配体。这些类型的配体适用于合成具有有趣磁性的新型过渡金属（II）配合物。在这种情况下，我们合成了配体1-（2-羟苯基-2-亚乙基）-2-（吡啶-2-基）肼（HL），该配体用于制备单核标题化合物[Ni（C13H12N3O） （C13H13N3O）] NO3·0.5H2O。由于[{Ni（HL）（L）}] +单元中HL和L的存在，该配合物似乎是由Δ（-）和Λ（-）光学异构体组成的超分子二聚体，通过牢固的氢键相连。除了由两个单核[{Ni（HL）（L）}] +阳离子生成的二聚体外，不对称单元还包含两个硝酸根阴离子和一个水分子。每个Ni原子通过吡啶环的氮原子，一个配体分子的亚胺氮原子和酚氧原子以及另一个有机分子的酚盐氧原子与两个配体分子配位。阳离子周围的环境是扭曲的八面体。基础平面由吡啶环的两个氮原子和配体的两个酚性氧原子限定，其顶端位置被偶氮甲碱原子占据。硝酸根离子之一的O原子以0.745 two（9）：0.255（9）的比率在两组位点上无序排列。在晶体中，二聚体通过许多氢键连接，形成三维框架。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号