trans,trans-[(PtCl2(2,3,5-collidine))2(μ-pyrazine)] | 1122031-74-6

• 英文名称: trans,trans-[(PtCl2(2,3,5-collidine))2(μ-pyrazine)]
• 英文别名: trans,trans-[(PtCl2(2,3,5-col))2(μ-pz)]
• CAS: 1122031-74-6
• 化学式: C₂₀H₂₆Cl₄N₄Pt₂
• 分子量: 854.425
• InChiKey: JJDQLMQVQMZPDF-UHFFFAOYSA-J

物化性质

• 熔点：
  ~245 °C (decomp) (approx)

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：

  K[Pt(2,3,5-collidine)Cl3] 在 NaCl 作用下， 以 氯仿 、 水 为溶剂， 生成 cis-[PtCl2(2,3,5-col)(pz)] 、 trans,trans-[(PtCl2(2,3,5-collidine))2(μ-pyrazine)]
  参考文献：
  名称：

  Synthesis and characterization of the novel Pt(II) complexes of the types cis- and trans-Pt(Ypy)(pyrazine)Cl2, K2[Cl3Pt(μ-pyrazine)PtCl3] and trans, trans-(Ypy)Cl2Pt(μ-pyrazine)Pt(Ypy)Cl2 (Ypy=pyridine derivative)

  摘要：

  New types of Pt(II) mixed-ligand complexes containing a pyridine derivative (Ypy) and pyrazine (pz) were synthesized. The compounds were characterized by infrared spectroscopy and by multinuclear (H-1, C-13 and Pt-195) magnetic resonance. The complexes cis-Pt(Ypy)(pz)Cl-2 were synthesized from the reaction of K[Pt(Ypy)Cl-3] with pyrazine (1:1 proportion) in water. When the reaction was carried on in a 2:1 ratio, a mixture of compounds was obtained, which was refluxed in CH2Cl2 for several days. The final product was found to be pure and it was identified as trans, trans-Cl-2(Ypy)Pt(mu-pyrazine)Pt(Ypy)Cl-2. The cis monomers isomerize to the trans isomers in organic solvents. Different methyl derivatives of pyridine were studied in order to determine the influence of substitution in ortho position on the pyridine ligand in the complexes. In IR spectroscopy, the cis monomers showed two v(Pt-Cl) bands, while the trans monomers and dinuclear species showed only one v(Pt-Cl) band. The NMR results were interpreted in relation to the solvent effect, which seems important in these complexes. The Pt-195 NMR signals of the cis monomers were found at slightly higher. fields than those of the corresponding trans isomers. The coupling constants J(Pt-195-H-1) and J(Pt-195-C-13) are larger in the cis geometry. The delta(Pt-195) of the dinuclear species were found close to those of the trans monomers and the coupling constants are similar to those of the trans monomers, strongly suggesting a trans-trans configuration for the dinuclear compounds. The pyrazine-bridged complex K-2[Cl3Pt(mu-pz)PtCl3] was also synthesized and spectroscopically studied. The crystal structures of the compounds cis-Pt(3,5-lut)(pz)Cl-2 and trans-Pt(2,4,6-col)(pz)Cl-2 were determined by X-ray diffraction methods. (C) 2008 Elsevier B.V. All rights reserved.

  DOI：

  10.1016/j.ica.2008.04.036