| 14257-55-7

• 分子结构分类: 无机化合物 - 均质非金属化合物
• CAS: 14257-55-7
• 化学式: F₄S
• 分子量: 108.06
• InChiKey: BNPFXSKYSQSWIN-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.68
• 重原子数：
  5.0
• 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：
  0.0
• 氢给体数：
  0.0
• 氢受体数：
  0.0

反应信息

• 作为产物：
  描述：

  六氟化硫 生成 、 、 sulfur trifluoride
  参考文献：
  名称：

  同步辐射研究SF + 6价电子态的断裂

  摘要：

  SF + 6的七个价电子态的碎片化已通过光电离质谱法在440-810Å范围内进行了研究。对于SF离子产率+ 5示出了在接地（X的绝热电离能量两个阈值2 Ť 1克）和前两个激发态（Ã 2 Ť 1U和B 2 Ť 2U SF的）+ 6。SF + 4显示在SF + 6，SF + 3的第三状态（C 2 E g）处的阈值在第四状态和合适状态（D 2 T 2g和E 2 T 1u）显示两个阈值，并且在第六状态（F 2 A 1g）打开SF + 2。因此，在所有情况下，碎片离子的出现能都在电子状态为SF + 6的绝热电离电势下发生，而不是在碎片离子的较低热化学能下发生。在SF + 5，SF + 4和SF + 3中在光子能量刚好高于每个离子产生阈值的情况下测量了动能释放。如果是SF +在图5中，可利用能量的很大一部分被转换成片段的翻译能。将SF + 5，SF + 4和SF + 3的相对光电离产率与从SF + 6

  DOI：

  10.1039/ft9918701287

文献信息

• Ion–molecule reactions of SF₆: Determination of I.P.(SF₅), A.P.(SF₅⁺/SF₆), and <i>D</i>(SF₅–F)
  作者：Lucia M. Babcock、Gerald E. Streit

  DOI：10.1063/1.440934

  日期：1981.5.15

  SF6 reacts with CF3+ to produce SF5+ and CF4. Under conditions of large amounts of CF4, an equilibrium is established. From flowing afterglow data, not only is a forward rate constant kf = (2.5±0.2)×10−10 cm3 molecule−1 s−1 determined, but also an equilibrium constant of 5.9×103 (±50%) is deduced. Using this equilibrium constant and standard entropies for the various species, ΔH°298 = −0.17±0.02 eV is calculated. A thermochemical cycle then yields a value of A.P.(SF5+/SF6) = 14.62±0.09 eV. An examination of charge exchange reactions of SF5+ leads to establishment of the ionization potential of SF5 at 10.5±0.1 eV. Combining this with A.P.(SF5+/SF6) allows a calculation of the bond dissociation energy D°298(SF5–F) = 4.1±0.13 eV. In addition to these new values of A.P.(SF5+/SF6), I.P.(SF5), and D°298(SF5–F), the fragmentation pattern of SF6 reacting with He+ as well as rates of reaction of SF6 with several positive ions are reported.
• Dissociative and double photoionization of SF₆in the 75–125 eV region
  作者：Toshio Masuoka、James A. R. Samson

  DOI：10.1063/1.441882

  日期：1981.11.15

  Partial cross sections for the singly charged fragments [SFm+(m = 0–5)] and F+ and the doubly charged fragments [SFn2+(n = 0–4)] in SF6 have been measured using a time-of-flight mass spectrometer and synchrotron radiation in the 75–125 eV region. The mass spectrometer collected a constant fraction of all the fragments produced including energetic ones, thus providing true fragmentation yields. The relatively large production rate of double ionization is demonstrated.