[PtCl2(η(2)-ethylene)(1,10-phenanthroline-5,6-dione)] | 671185-11-8

• 英文名称: [PtCl2(η(2)-ethylene)(1,10-phenanthroline-5,6-dione)]
• 英文别名: [PtCl2(η(2)-C2H4)(phedon)]
• CAS: 671185-11-8
• 化学式: C₁₄H₁₀Cl₂N₂O₂Pt
• 分子量: 504.232
• InChiKey: NBIXQHFNTSXOSW-UHFFFAOYSA-L

反应信息

• 作为产物：
  描述：

  1,10-邻二氮杂菲-5,6-二酮 、 potassium trichloro(ethylene)platinate(II) 以 氘代丙酮 为溶剂， 生成 [PtCl2(η(2)-ethylene)(1,10-phenanthroline-5,6-dione)]
  参考文献：
  名称：

  Influence of steric and electronic factors in the stabilization of five-coordinate ethylene complexes of platinum(II): X-ray crystal structure of [PtCl2(2,9-dimethyl-1,10-phenanthroline-5,6-dione)]

  摘要：

  Reactions of Zeise's salt (K[Pt(eta(2)-C2H4)Cl-3]) with oxidized phenanthroline ligands (1, 10-phenanthroline-5,6-dione, phedon, and 2,9-dimethyl-1,10-phenanthroline-5,6-dione, Me(2)phedon) are reported. Comparison with analogous reactions involving unoxidized phen (1,10-phenanthroline) and Me phen (2,9-dimethyl-1,10-phenanthroline) ligands indicates that these latter ligands are less capable to stabilize the five-coordinate species [PtCl2 (eta(2)-C2H4)(phenanthroline)] in which the phenanthroline and the olefin share the trigonal plane and two chlorines are in the axial positions. The X-ray structure of the four-coordinate species [PtCl)(Me(2)phedon)] indicates that the major difference between oxidized and unoxidized phenanthrolines is the loss of aromaticity of the central ring of phenanthroline. As a consequence, the oxidized phenanthroline becomes more flexible and can undergo a bowlike distortion so to reduce steric interaction between ortho substituents of phenanthroline and cis chlorine ligands. The increase in stability of the four-coordinate species with Me(2)phedon is concomitant with an increase in stability of the five-coordinate precursor complex with ethylene. In the latter case the stabilization is not of sterical origin but stems from reduced electron-donor properties of oxidized phenanthrolines. The balance of the two effects is such that the equilibrium between five- and four-coordinate species is more shifted in favour of the former species in the case of Me2phedon than in the case of Me(2)phen. (C) 2003 Elsevier B.V. All rights reserved.

  DOI：

  10.1016/s0020-1693(03)00382-7