uranium dichloride | 13775-08-1

• 分子结构分类: 无机化合物 - 混合金属/非金属化合物 - 锕系盐类
• 英文名称: uranium dichloride
• 英文别名: Dichlorouranium
• CAS: 13775-08-1
• 化学式: Cl₂U
• 分子量: 308.935
• InChiKey: SUABGIZUVXPFHU-UHFFFAOYSA-L

计算性质

• 辛醇/水分配系数(LogP)：
  1.38
• 重原子数：
  3
• 可旋转键数：
  0
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  0
• 氢给体数：
  0
• 氢受体数：
  0

反应信息

• 作为反应物：
  描述：

  氯化钙 、 uranium dichloride 以 gas 为溶剂， 生成 铀(III)氯化物
  参考文献：
  名称：

  Thermochemical studies of the gaseous uranium chlorides

  摘要：

  The gaseous uranium halides UCl, UCl2, UCl3, UCl4, and UCl5 were generated under equilibrium conditions using several types of effusive beam sources, and were identified and characterized thermochemically by mass spectrometry. Five independent gaseous equilibria involving these species were studied in sufficient depth so that both reaction enthalpy and entropy changes could be evaluated accurately from second law analysis. The enthalpy data yield the sequence of bond dissociation energies at 298 K in kcal/mol: D° (U–Cl)=108; D° (ClU–Cl)=117; D° (Cl2U–Cl)=117; D° (Cl3U–Cl)=101; and D° (Cl4U–Cl)=50, all ±2 kcal/mol. As expected, the absolute entropies of the gaseous chlorides show that the electronic partition functions of the lighter species are substantial at the experimental temperatures, leading to electronic entropies of 5–7 cal/deg mol at about 2100 K.

  DOI：

  10.1063/1.446811
• 作为产物：
  描述：

  氯化钙 、 uranium monochloride 以 gas 为溶剂， 生成 uranium dichloride
  参考文献：
  名称：

  Thermochemical studies of the gaseous uranium chlorides

  摘要：

  The gaseous uranium halides UCl, UCl2, UCl3, UCl4, and UCl5 were generated under equilibrium conditions using several types of effusive beam sources, and were identified and characterized thermochemically by mass spectrometry. Five independent gaseous equilibria involving these species were studied in sufficient depth so that both reaction enthalpy and entropy changes could be evaluated accurately from second law analysis. The enthalpy data yield the sequence of bond dissociation energies at 298 K in kcal/mol: D° (U–Cl)=108; D° (ClU–Cl)=117; D° (Cl2U–Cl)=117; D° (Cl3U–Cl)=101; and D° (Cl4U–Cl)=50, all ±2 kcal/mol. As expected, the absolute entropies of the gaseous chlorides show that the electronic partition functions of the lighter species are substantial at the experimental temperatures, leading to electronic entropies of 5–7 cal/deg mol at about 2100 K.

  DOI：

  10.1063/1.446811