N,N'-bis(1-pyridin-2-ylethylideneamino)oxamide | 548782-96-3

• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 羧酸及其衍生物
• 英文名称: N,N'-bis(1-pyridin-2-ylethylideneamino)oxamide
• CAS: 548782-96-3
• 化学式: C₁₆H₁₆N₆O₂
• 分子量: 324.342
• InChiKey: SQRWGZCSTOSLSJ-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.5
• 重原子数：
  24
• 可旋转键数：
  4
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.12
• 拓扑面积：
  109
• 氢给体数：
  2
• 氢受体数：
  6

反应信息

• 作为反应物：
  描述：

  N,N'-bis(1-pyridin-2-ylethylideneamino)oxamide 、 copper(II) perchlorate 以 甲醇 、 水 为溶剂， 以50%的产率得到[copper(II)2(2-acetylpyridine hydrazone)2(oxalate)](perchlorate)2
  参考文献：
  名称：

  Complexes derived from hydrolytically ‘unstable’ hydrazone ligands – Some unexpected products

  摘要：

  Polyfunctional ligands derived from condensation reactions in which small molecules, e.g., water, an alcohol, etc., are eliminated can suffer the ravages of hydrolytic attack on reaction with transition metal ions in aqueous based solvents, or solvents containing small amounts of water. A series of such reactions is described involving hydrazone based ligands, in which hydrolyzed ligand fragments, and their resulting coordination complexes, are produced. Structures are reported to identify these products, which reveal some unexpected ligand rearrangements. Variable temperature magnetic data are discussed for some dinuclear complexes, and a DFT study is presented to rationalize an unusual ligand transformation. (c) 2005 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.poly.2005.02.016

文献信息

• Self-assembled polynuclear clusters derived from some flexible polydentate dihydrazide ligands
  作者：Liang Zhao、Virginie Niel、Laurence K. Thompson、Zhiqiang Xu、Victoria A. Milway、Rosemary G. Harvey、David O. Miller、Claire Wilson、Michael Leech、Judith A. K. Howard、Sarah L. Heath

  DOI：10.1039/b317091h

  日期：——

  Polynuclear manganese(II), cobalt(II)/(III), iron(II)/(III) and nickel(II) complexes of a group of flexible polydentate dihydrazone ligands, based on pyridine-2,6-dipicolinic (A), oxalic (B) and malonic (C) subunits are described. Structural details are reported for the linear dinuclear complexes [Ni2(2poap)2(H2O)2](NO3)4·2CH3OH·2.5H2O (1), [Mn2(pttp)(NO3)2(CH3OH)2(H2O)2](NO3)2·H2O (2) and [Mn2(mapttp)2(NO3)2(H2O)2](NO3)2·10H2O (3), a square tetranuclear complex [Co4(pttp)4]Br6·9H2O (4), a tetranuclear tetrahedral complex [Ni4(pttp)6](BF4)6F2·14H2O (7), and a mixed spin state tetranuclear Ni(II) complex [(2pyoap)2Ni4(CH3OH)4]·1.5CH3OH (10), with a diamond-like arrangement of metal ions. The paramagnetic metal centers are well separated in each case, leading to weak antiferromagnetic coupling or non-existent spin exchange.

  描述了一组基于吡啶-2,6-二吡啶酸（A）、草酸（B）和丙二酸（C）子单位的灵活多齿二肼酮配体的多核锰(II)、钴(II)/(III)、铁(II)/(III)和镍(II)配合物。报告了线性双核配合物的结构细节，包括[Ni2(2poap)2(H2O)2](NO3)4·2CH3OH·2.5 (1)、[Mn2(pttp)( )2(CH3OH)2( )2]( )2· (2)和[Mn2(mapttp)2( )2( )2]( )2·10 (3)、一个方形四核配合物[Co4(pttp)4]Br6·9 (4)、一个四核四面体配合物[Ni4(pttp)6](BF4)6F2·14 (7)以及一个混合自旋态的四核镍(II)配合物[(2pyoap)2Ni4(CH3OH)4]·1.5CH3OH (10)，其中金属离子呈现钻石状排列。在每种情况下，顺磁性金属中心相互之间分隔良好，导致弱的反铁磁耦合或不存在的自旋交换。