tetraboron tetrabromide | 84865-78-1

• 英文名称: tetraboron tetrabromide
• CAS: 84865-78-1
• 化学式: B₄Br₄
• 分子量: 362.86
• InChiKey: NKLXSYFGCONZAZ-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：

  Tetraborane(4), tetrachloro- 、 三溴化硼 在 aluminum tri-bromide 作用下， 以 neat (no solvent) 为溶剂， 以80.3%的产率得到tetraboron tetrabromide
  参考文献：
  名称：

  Chemistry of tetraboron tetrachloride. Synthesis and characterization of tetraboron tetrabromide (B4Br4) and observation of B4BrCl3, B4Br2Cl2, and B4Br3Cl

  摘要：

  In the absence of added solvent, B4Cl4 and BBr3, present in a 1:5 mole ratio, generated B4BrCl3 in approximately 13% yield after 800 h at 95-degrees-C. Repeated exposure of B4Cl4 to fresh aliquots of BBr3 and pentane at 95-degrees-C did ultimately (2200 h) form B4Br4 and the mixed ligand species B4Br3Cl, B4Br2Cl2, and B4BrCl3, but the quantities provided were small. The boron-11 NMR data for the bromochlorotetraboranes are consistent with a tetrahedral configuration of the boron atoms rather than a square-planar-based array. In thc presence of AlBr3, B4Br4 was generated from the interaction of B4Cl4 with BBr3 at 95-degrees-C and isolated in 80% yield. After 144 h at 110-degrees-C, the reaction of B4Br4 with excess BCl3 regenerated B4Cl4 in ca. 90% yield.

  DOI：

  10.1021/ic00036a025