mononiobium(III) monooxide | 23625-94-7

• 英文名称: mononiobium(III) monooxide
• CAS: 23625-94-7
• 化学式: NbO
• 分子量: 108.906
• InChiKey: OGGYRJFLUREXOY-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -0.12
• 重原子数：
  2.0
• 可旋转键数：
  0.0
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  17.07
• 氢给体数：
  0.0
• 氢受体数：
  1.0

反应信息

• 作为反应物：
  描述：

  环氧乙烷 、 mononiobium(III) monooxide 以 gas 为溶剂， 生成 mononiobium(V) dioxide
  参考文献：
  名称：

  气相中的异核过渡金属簇离子：铁铌的热化学和反应性（NbFe +和NbFeL +； L = O，CO，H2O和烯烃）

  摘要：

  DOI：

  10.1021/j100346a059
• 作为产物：
  描述：

  重水 、 铌 以 gaseous matrix 为溶剂， 生成 mononiobium(III) monooxide
  参考文献：
  名称：

  与原子过渡金属和主族阳离子的重水反应：气相室温动力学和反应周期。

  摘要：

  使用感应耦合等离子体/选定离子流管串联质谱仪在室温下在0.35 Torr的氦浴气体中用46种原子金属阳离子测量了重水D（2）O的反应。原子阳离子在约70℃下产生。在ICP源中5500 K，并在反应之前通过与Ar和He原子的碰撞使其辐射衰减并热化。报告了从K +到Se +的第四行原子阳离子，从Rb +到Te +（不包括Tc +）的第五行原子阳离子和从Cs +到Bi +的第六行原子阳离子反应的速率系数和产物分布。观察到主要反应通道导致O原子转移，OD转移和D2O添加。在与大多数早期过渡金属阳离子（Sc +，Ti +，V +，Y +，Zr +，Nb +，Mo +，Hf +，Ta +和W +），并在较小程度上（10％）与一种主族阳离子（As +）结合。观察到OD转移仅在三种阳离子（Sr +，Ba +和La +）下发生。观察到其他阳离子，包括大多数后期跃迁和主族阳离子，仅通过添加D2O即可与D2O缓

  DOI：

  10.1021/jp072661p

文献信息

• Oxidation of transition-metal cations in the gas phase. Oxygen bond dissociation energies and formation of an excited-state product
  作者：Manfred M. Kappes、Ralph H. Staley

  DOI：10.1021/j150608a004

  日期：1981.4
• Size‐selective dehydrogenation of benzene by gas‐phase niobium cluster ions (Nb⁺_<i>x</i>)
  作者：M. R. Zakin、R. O. Brickman、D. M. Cox、A. Kaldor

  DOI：10.1063/1.454507

  日期：1988.5

  The gas-phase reaction of positively charged niobium cluster ions Nb+x with normal and perdeuterobenzene has been studied using a fast-flow reactor and direct ion sampling techniques. Chemisorption of benzene onto the ion is facile, with the rate being essentially independent of x. However, both the resulting product distributions, consisting of species NbxC6H+m and NbxC6D+m with m=0,2,4,6, and the relative product yields not only display a dramatic dependence on cluster size, but are also remarkably similar to those previously observed for neutral Nbx using gentle, low-fluence, single-photon 6.42 eV photoionization. Direct observation of products with m≤6 indicates that both chemical dehydrogenation of benzene and desorption of hydrogen from the cluster ions must occur in the fast-flow reactor. Further, the relative yield of dehydrogenated products is found to increase substantially with increase in cluster ‘‘temperature.’’ Complete dehydrogenation of benzene to m=0 is also found to occur for niobium cluster oxides NbxO+ containing 5–14 Nb atoms. The present results are discussed in terms of the mechanism of the dehydrogenation process, as well as with respect to their relevance in determining ‘‘true’’ parent product distributions formed in reactions of the corresponding neutral clusters.