barium dioxide | 158039-03-3

• 英文名称: barium dioxide
• CAS: 158039-03-3
• 化学式: BaO₂
• 分子量: 169.329
• InChiKey: ZSNIHNDYUGZUMO-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：

  氧气 、 barium 以 gas 为溶剂， 生成 过氧化钡 、 无水氧化钡 、 barium dioxide 、 、
  参考文献：
  名称：

  Reactions of Pulsed-Laser Evaporated Ca, Sr, and Ba Atoms with O2. Infrared Spectra of the Metal Oxides, Oxide Dimers, Dioxides, and Peroxides in Solid Argon

  摘要：

  Pulsed-laser ablated Ca, Sr, and Ba atoms have been reacted with O-2 in excess argon during condensation at 10 K. Infrared spectra and oxygen isotopic substitution show that the major products are the symmetrical OMO metal dioxide and the rhombic metal oxide dimer. The metal oxides and cyclic MO(2) peroxides are minor products. In the case of calcium, activation energy provided by pulsed-laser ablation makes the reaction to give CaO, CaO2, (CaO)2, and OCaO possible. Strontium and barium are more reactive and the dioxides and peroxides increase on annealing the argon matrix to 25 K, which shows that no activation energy is necessary for the Sr and Ba atom reactions with O-2. Photolysis decreased the peroxide in favor of the dioxide species. The alkaline earth metal peroxides are characterized by O-O stretching absorptions in the 700-cm(-1) region and are distinctly different from the alkali metal superoxides, which are characterized by O-O stretching absorptions in the 1100-cm(-1) region.

  DOI：

  10.1021/j100077a016