N,N'-bis-[2-(2'-pyridyl)ethyl]-N,N'-dimethylethane-1,2-diamine | 72783-20-1

• 分子结构分类: 有机化合物 - 有机氮化合物
• 英文名称: N,N'-bis-[2-(2'-pyridyl)ethyl]-N,N'-dimethylethane-1,2-diamine
• 英文别名: 1,8-bis(2-pyridyl)-3,6-dimethyl-3,6-diazaoctane；N,N'-dimethyl-N,N'-bis(2-pyridin-2-ylethyl)ethane-1,2-diamine
• CAS: 72783-20-1
• 化学式: C₁₈H₂₆N₄
• 分子量: 298.431
• InChiKey: SWWZALCMDNGYHC-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.1
• 重原子数：
  22
• 可旋转键数：
  9
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.44
• 拓扑面积：
  32.3
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  N,N'-bis-[2-(2'-pyridyl)ethyl]-N,N'-dimethylethane-1,2-diamine 在 sodium borohydride 作用下， 以 乙醇 、 水 、 乙腈 为溶剂， 生成 [Ni(I)(N,N'-bis-[2-(2'-pyridyl)ethyl]-N,N'-dimethylethane-1,2-diamine)](1+)
  参考文献：
  名称：

  具有四齿和五齿氨基吡啶配体的镍（II）配合物：合成，结构，电化学和还原为镍（I）物种。

  摘要：

  一系列具有多齿氨基吡啶配体N，N，N'-三-[2-（2'-吡啶基）乙基]乙烷-1,2-二胺（L1），N，N，N'-的镍（II）配合物三-[2-（2'-吡啶基）乙基] -N'-甲基乙烷-1,2-二胺（L2）和N，N'-双-[2-（2'-吡啶基）乙基] -N，合成了N'-二甲基乙烷-1，2-二胺（L3），并通过元素分析和光谱法对其进行了表征。单晶X射线衍射研究表明，Ni（II）离子在[NiL2]（ClO（4））（2）中具有五坐标方锥几何形状，与先前在[NiL1]（ClO（ 4））（2）x CH（3）NO（2）（Hoskins，BF; Whillans，FDJ Chem。Soc。，Dalton Trans.1975，657）和[NiL3]（ClO（4） ）（2）。在有机溶剂中，硼氢化钠或汞齐钠将所有三种镍（II）配合物还原为镍（I）物种，通过[100L]的高各向异性EPR光谱确定：[NiL1]（+）的g（1）=

  DOI：

  10.1021/ic010397n

文献信息

• Nikles; Powers; Urbach, Inorganic Chemistry, 1983, vol. 22, # 22, p. 3210 - 3217
  作者：Nikles、Powers、Urbach

  DOI：——

  日期：——
• Nickel(II) complexes with tetradentate N4 ligands: Synthesis, structure, electrochemistry and thermochromism in solution
  作者：Maria S. Kryatova、Olga V. Makhlynets、Alexander Y. Nazarenko、Elena V. Rybak-Akimova

  DOI：10.1016/j.ica.2011.12.054

  日期：2012.5

  Complexes of nickel(II) chloride with homologous tetradentate aminopyridine ligands 1,8-bis(2-pyridyl)-3,6-dimethyl-3,6-diazaoctane (pdao) and 1,6-bis(2-pyridyl)-2,5-dimethyl-2,5-diazahexane (bpmen) were prepared in the crystalline state and characterized by elemental analysis and X-ray diffraction as [Ni(pdao)(H2O)(2)]Cl-2 center dot H2O (1) and [Ni(bpmen)Cl-2]center dot H2O (2). In the solid state, both complexes are blue-green and contain octahedral Ni(II) with a cis-alpha-coordinated tetramine. In aqueous solution, both complexes are strong electrolytes as follows from the measurements of electrical conductivity: complex 2 is hydrated and forms purple [Ni(bpmen)(H2O)(2)](2+)(aq). Complex 1 displays thermochromic behavior in solution (it is blue-green at low temperatures and yellow at high temperatures) due to a temperature sensitive equilibrium [Ni(pdao)(H2O)(2)](2+)(aq) reversible arrow [Ni(pdao)](2+)(aq) + 2H(2)O(l), Delta H degrees = +30(1) kJ/mol and Delta S degrees = +80(3) J/mol K in 0.1 MNaClO4(aq). Complex 1, but not 2, can be reversibly reduced to the Ni(I) species (E-1/2 = -0.9 V versus SHE in aqueous solution and -1.37 V versus Fc(+)/Fc in acetonitrile). The relative stabilization of nickel(I) by ligand pdao can be attributed to an optimal size of the ligand bite and to the presence of the pyridine and tertiary amine N-donors. (C) 2012 Elsevier B. V. All rights reserved.