[PtBr2(ce)Me2(ab)(pyridine)2(df)] | 50363-24-1

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吡啶及其衍生物
• 英文名称: [PtBr2(ce)Me2(ab)(pyridine)2(df)]
• 英文别名: carbanide;platinum(4+);pyridine;dibromide
• CAS: 50363-24-1
• 化学式: C₁₂H₁₆Br₂N₂Pt
• 分子量: 543.16
• InChiKey: ZMODAXBAYBRJIJ-UHFFFAOYSA-L

计算性质

• 辛醇/水分配系数(LogP)：
  -2.93
• 重原子数：
  17
• 可旋转键数：
  0
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  25.8
• 氢给体数：
  0
• 氢受体数：
  6

反应信息

• 作为反应物：
  描述：

  [PtBr2(ce)Me2(ab)(pyridine)2(df)] 在 高氯酸 作用下， 以 水 为溶剂， 以98%的产率得到[(PtMe₃)₄μ³-Br₄]
  参考文献：
  名称：

  Synthesis of dimethylplatinum(IV) compounds, [{PtMe₂X₂}_n], [{PtMe₂XY}_n], and, in solution, fac-[PtMe₂X(H₂O)₃]⁺, where X and Y are anionic ligands

  摘要：

  X₂（X = Cl、Br、I）与顺式-[PtMe₂L₂]（L = 吡啶，py，或L₂ = N，N，N'，N'-四甲基乙二胺（tmen））发生氧化加成反应，得到[PtMe₂X₂L₂]。对于X = Br、I，用含水HClO₄处理得到不溶的[{PtMe₂X₂}n]，但对于X = Cl，[PtMe₂Cl₂(H₂O)₂]仍保持在溶液中，而[{PtMe₂Cl₂}_n]只在浓缩溶液中沉淀。[PtMe₂L₂]（L = py，1/2(tmen)）与水反应得到[PtMe₂(OH)₂L₂]，经HClO₄处理后在溶液中得到顺式-[PtMe₂(H₂O)₄](ClO₄)₂。水还与[PtMe₂(nbd)]（nbd = 双环戊二烯）反应，得到[{PtMe₂](OH)₂}_n]•mH₂O。醇ROH（R = Me，Et）与顺式-[PtMe₂py₂]反应得到[PtMe₂(OR)(OH)py₂]，再与含水HClO₄的溶液反应得到溶液中的fac-[PtMe₂(OR)(H₂O)₃]ClO₄。向该溶液中加入氯化物会导致[{PtMe₂(OR)Cl}_n]的沉淀。[{PtMe₂XY}_n]与水中的AgNO₃反应得到溶液中的fac-[PtMe₂X(H₂O)₃](NO₃)（X = Y = Cl、Br、I或Y = Cl，X = OR）；对于X = I，需要添加酸以防止[{PtMe₂I(OH)}_n]的沉淀。fac-[PtMe₂Br(H₂O)₃](NO₃)的溶液与AgNO₂反应得到fac-[PtMe₂(NO₂)(H₂O)₃](NO₃)，但与AgSCN的类似反应只得到低收率的fac-[PtMe₂(SCN)(H₂O)₃](NO₃)复合物。关键词：铂，甲基，吡啶，水合物，烷氧基，氧化加成，核磁共振。

  DOI：

  10.1139/v96-229
• 作为产物：
  描述：

  吡啶 、 [(PtMe₃)₄μ³-Br₄] 以 not given 为溶剂， 生成 [PtBr2(ce)Me2(ab)(pyridine)2(df)]
  参考文献：
  名称：

  Reactions of fac-[PtMe2(OMe)(H2O)3]+ with halide ions: effect of halide trans effect on methoxide hydrolysis

  摘要：

  A solution of fac-[PtMe2(OMe)(H2O)(3)](+) (1) in aqueous perchloric acid underwent very slow hydrolysis of the Pt-OMe bond, over many, weeks. When chloride was added to a solution of 1, two interconverting isomers of [PtMe2(OMe)Cl(H2O)(2)] (with chloride trans to methyl) were formed, and with excess chloride, [PtMe2(OMe)Cl-2(H2O)](-) (both chloride ligands trans to methyl). This solution was stable at ambient temperature, but on heating, methanol was formed and [PtMe2Cl2(H2O)(2)] (both chloride ligands cis to methyl) was produced in the solution. It is proposed that this reaction proceeds via an intermediate complex with chloride bound trans to methoxide. Concentration gave solid [{PtMe2Cl2}n], whose identity was confirmed by conversion to [PtMe(2)Cl(2)py(2)] (pyridine, py, trans to methyl). With bromide and iodide, methoxide hydrolysis occurred at ambient temperature, more slowly with bromide than with iodide, to form solid [{PtMe2X2}(n)] without significant concentrations of [PtMe2X2(H2O)(2)] formed as an intermediate. The greater tendency for Pt-OMe bond to hydrolyse trans to halide compared with 1 was ascribed to the higher trans effect of the halide ligand compared with that of water. (C) 2003 Elsevier Science B.V. All rights reserved.

  DOI：

  10.1016/s0020-1693(03)00137-3