tungsten dimer | 12597-61-4

• 分子结构分类: 无机化合物 - 均相金属化合物 - 均相过渡金属化合物
• 英文名称: tungsten dimer
• 英文别名: (tungsten)2
• CAS: 12597-61-4
• 化学式: W₂
• 分子量: 367.7
• InChiKey: WIGAYVXYNSVZAV-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -0.01
• 重原子数：
  2
• 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：

  tungsten dimer 、 氨 以 gaseous matrix 为溶剂， 生成
  参考文献：
  名称：

  Gas-phase reaction of tungsten dimer with NH3 and C2H4 at room temperature

  摘要：

  Absolute reaction rate constants of ground-state tungsten dimer W-2(X) with C2H4 (as a typical pi-acceptor) and NH3 (as a typical sigma-donor) were measured in the gas phase at room temperature. For the production of the tungsten dimer, a 266-nm multiphoton decomposition of W(CO)(6) was used. W-2(X) was observed to react with C2H4 faster than NH3. This chemical reactivity pattern for W-2(X) differs much from that of the isovalent Mo-2(X) molecule, which was previously reported to be reactive to a sigma-donor but not to a pi-acceptor. It is suggested that this is the result of relativistic effects in the heavy metal dimer, W-2. (C) 2002 Elsevier Science B.V. All rights reserved.

  DOI：

  10.1016/s0009-2614(01)01445-2
• 作为产物：
  描述：

  六羰基钨 以 gaseous matrix 为溶剂， 生成 tungsten dimer
  参考文献：
  名称：

  Gas-phase reaction of tungsten dimer with NH3 and C2H4 at room temperature

  摘要：

  Absolute reaction rate constants of ground-state tungsten dimer W-2(X) with C2H4 (as a typical pi-acceptor) and NH3 (as a typical sigma-donor) were measured in the gas phase at room temperature. For the production of the tungsten dimer, a 266-nm multiphoton decomposition of W(CO)(6) was used. W-2(X) was observed to react with C2H4 faster than NH3. This chemical reactivity pattern for W-2(X) differs much from that of the isovalent Mo-2(X) molecule, which was previously reported to be reactive to a sigma-donor but not to a pi-acceptor. It is suggested that this is the result of relativistic effects in the heavy metal dimer, W-2. (C) 2002 Elsevier Science B.V. All rights reserved.

  DOI：

  10.1016/s0009-2614(01)01445-2

文献信息

• Gas-phase reaction of tungsten dimer with NH3 and C2H4 at room temperature
  作者：Yo-ichi Ishikawa、Yoshitaka Matsumoto

  DOI：10.1016/s0009-2614(01)01445-2

  日期：2002.1

  Absolute reaction rate constants of ground-state tungsten dimer W-2(X) with C2H4 (as a typical pi-acceptor) and NH3 (as a typical sigma-donor) were measured in the gas phase at room temperature. For the production of the tungsten dimer, a 266-nm multiphoton decomposition of W(CO)(6) was used. W-2(X) was observed to react with C2H4 faster than NH3. This chemical reactivity pattern for W-2(X) differs much from that of the isovalent Mo-2(X) molecule, which was previously reported to be reactive to a sigma-donor but not to a pi-acceptor. It is suggested that this is the result of relativistic effects in the heavy metal dimer, W-2. (C) 2002 Elsevier Science B.V. All rights reserved.