Co(NO3)2(H2O)2(py)2 | 1299327-51-7

• 分子结构分类: 有机化合物 - 有机1,3-偶极化合物 - 烯丙基型1,3-偶极有机化合物
• 英文名称: Co(NO3)2(H2O)2(py)2
• CAS: 1299327-51-7
• 化学式: C₁₀H₁₄CoN₄O₈
• 分子量: 377.236
• InChiKey: PFQRZLFZDPPVFW-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  None
• 重原子数：
  None
• 可旋转键数：
  None
• 环数：
  None
• sp3杂化的碳原子比例：
  None
• 拓扑面积：
  None
• 氢给体数：
  None
• 氢受体数：
  None

反应信息

• 作为产物：
  描述：

  水 、 吡啶 、 trisodium hexanitrocobaltate(III) 、 alkaline earth salt of/the/ methylsulfuric acid 以 吡啶 为溶剂， 反应 10.0h， 生成 Co(NO3)2(H2O)2(py)2
  参考文献：
  名称：

  Complex conversion of the redox pair CoIII–NO2 to CoII–NO3: Synthesis, crystal structure and DNA-binding of trans,trans,trans-[Co(py)2(H2O)2(NO3)2]

  摘要：

  The mononuclear Co(II) complex trans,trans,trans-[Co(py)(2)(H2O)(2)(NO3)(2)], where py is pyridine, has been prepared under atmospheric conditions via a redox reaction of the starting material, Na-3[Co(NO2)(6)]. The product has been characterized by elemental analysis, spectroscopic methods (UV-Vis and IR) and single-crystal X-ray structure analysis. The Co(II) atom is six-coordinated by two pyridine, two nitrato and two aqua ligands, and shows a distorted octahedral coordination environment. The interaction of the complex with FS-DNA has been investigated by electronic absorption, competitive fluorescence titration, circular dichroism and voltammetric techniques. It can be concluded that the Co(II) complex intercalates into the base pairs of DNA as evidenced by a hypochromic effect of the absorption spectra, by displacing ethidium bromide bound to DNA and by induced CD spectral changes. The complex has also the ability to cleave supercoiled plasmid DNA. (C) 2013 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.poly.2013.01.039

文献信息

• Syntheses and Structures of Three Complexes of Formulas [L₃Co(μ₂-O₂P(Bn)₂)₃CoL′][L″], Featuring Octahedral and Tetrahedral Cobalt(II) Geometries; Variable-Temperature Magnetic Susceptibility Measurement and Analysis on [(py)₃Co(μ₂-O₂PBn₂)₃Co(py)][ClO₄]
  作者：John S. Maass、Matthias Zeller、Tanya M. Breault、Bart M. Bartlett、Hiroshi Sakiyama、Rudy L. Luck

  DOI：10.1021/ic3004799

  日期：2012.5.7

  The syntheses and structural properties of three dinuclear complexes [L3Co(mu(2) - O2P - (Bn)(2))(3)CoL'][L ''] [one ionic L-3 = py(3), L' = py, L '' = ClO4- (1) and two molecular L-3 = py(3), L' = Cl (2) and L-3 = py, mu(2)-NO3-, L' = py (3)] are reported. Complexes feature octahedral Co-II sites bridged by three dibenzyl-phosphinate ligands to a tetrahedrally ligated Co-II site, with the remaining coordination sites occupied by py, nitrato, and Cl ligands. The Co-Co distances are 4.248 angstrom at 291 K and 4.265 angstrom at 100 K for 1 and 4.278 and 4.0313(7) angstrom for 2, and 3, respectively at 100 K. A fit of the low-temperature magnetic susceptibility data was derived for complex 1 with g = 2.25, TIP = 700 x 10(-6) cm(3) mol lambda = -173 cm(-1), kappa = 0.93, v = -3.9, Delta = 630 cm(-1), J = 0.15 cm(-1), and theta = -1.8 resulting in R(chi(M)) = 2.5 x 10(-5) and R(chi T-M) = 5.8 X 10(-5).