[Ni(o-phthalato)(1-methylimidazole)2(H2O)3] | 850697-26-6

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: [Ni(o-phthalato)(1-methylimidazole)2(H2O)3]
• CAS: 850697-26-6
• 化学式: C₁₆H₂₂N₄NiO₇
• 分子量: 441.063
• InChiKey: JBUCABKFMYKUBZ-UHFFFAOYSA-L

反应信息

• 作为产物：
  描述：

  nickel(II) chloride hexahydrate 、 hexakis(1-methylimidazole)nickel(II) hydrogen o-phthalatedihydrate 在 KOH 作用下， 以 水 为溶剂， 以60.87%的产率得到[Ni(o-phthalato)(1-methylimidazole)2(H2O)3]
  参考文献：
  名称：

  Ni(II) coordination compounds based on mixed phthalate and aromatic amine ligands: synthesis, crystal structures and magnetic properties

  摘要：

  Three new coordination compounds, [Ni(Pht)(Py)(2)(H2O)(3)] (1), [Ni(Pht)(beta- Pic)(2)(H2O)(3)]. HO (2) and [Ni(Pht)(1-MeIm)(2)(H2O)(3)] (3) (where Pht(2-) = dianion of o-phthalic acid; Py = pyridine, beta-Pic = 3-methylpyridine, 1-MeIm = 1-methylimidazole), have been synthesized and characterized by IR spectroscopy and thermogravimetric analysis. Crystallographic studies 1-3 reveal that each Ni(II) center has a distorted octahedral geometry being coordinated by two nitrogen atoms of aromatic amines, one oxygen atom from a carboxylate group of a phthalate ligand and three water molecules. Pht(2-) anions act as monodentate ligands, while the remaining uncoordinated carboxylate oxygen atoms participate in the formation of hydrogen bonding. The uncoordinated oxygen atoms form hydrogen bonds with the coordinated water molecules from adjacent complexes creating a centrosymmetric dimer unit. Further, these dimer units are connected by O-(HO)-O-... hydrogen bonds in double-chains. Depending on the nature of aromatic amines, the arrangement of these double-chains differs. The double-chains are held together only by van der Waals interactions in 1. In contrast, in 2 these chains form layers by pi-pi interactions between antiparallel molecules of beta-Pic as well as by pi-pi interactions between beta-Pic and Pht aromatic rings. In complex 3, the double-chains are knitted together via C-(HO)-O-... hydrogen bonds between the methyl group of 1-MeIm and the coordinated carboxylate oxygen atom of Pht, as well as pi-pi contacts involving antiparallel 1-MeIm cycles. The thermal dependence of the magnetic susceptibilities for compounds 1 and 2 shows a weak antiferromagnetic interaction between the two Ni2+ ions of the hydrogen bonded dimers. For compound 3, a ferromagnetic interaction could be observed. Modeling the experimental data with MAGPACK resulted in: g = 2.22, vertical bar D vertical bar = 4.11 cm(-1) and J = -0.29 cm(-1) for compound 1, g = 2.215, vertical bar D vertical bar = 3.85 cm(-1) and J = -0.1 cm(-1) for compound 2 and g = 2.23, vertical bar D vertical bar = 4.6 cm(-1) and J = 0.22 cm(-1) for compound 3. (c) 2004 Elsevier B.V. All rights reserved.

  DOI：

  10.1016/j.ica.2004.10.028