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硫代氟化亚砜

硫代氟化亚砜
IUPAC名
difluoro(sulfanylidene)-λ4-sulfane
识别
CAS号 16860-99-4  checkY
PubChem 145375
ChemSpider 128238
SMILES
 
  • FS(=S)F
性质
化学式 F2S2
摩尔质量 102.13 g·mol−1
外观 无色气体
熔点 -164.6 °C(109 K)
沸点 -10.6 °C(263 K)
若非注明,所有数据均出自标准状态(25 ℃,100 kPa)下。

硫代氟化亚砜是一种氟化物 ,是二氟化二硫异构体

制备

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硫代氟化亚砜可以由二氯化二硫氟化钾在 150 °C 下反应而成。二氯化二硫和氟化汞在 20 °C下反应,也可以获得硫代氟化亚砜。[1][2]

S2Cl2 + 2 KF → SSF2 + 2 KCl

另外一种制备方法是三氟化氮和硫反应而成。[1]

NF3 + 3 S → SSF2 + NSF

在和碱金属氟化物反应时也可以生成二氟化二硫。[3]

性质

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硫代氟化亚砜是一种无色气体。[2] 在高温高压下,硫代氟化亚砜会分解成四氟化硫和硫单质。[2]

2 SSF2 → SF4 + 3 S

它会和氢氟酸反应,形成四氟化硫和硫化氢[4]

SSF2 + 2 HF → SF4 + H2S

参考资料

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  1. ^ 1.0 1.1 Brauer, Georg; Baudler, Marianne. Handbuch der Präparativen Anorganischen Chemie. Band I. 3rd. Stuttgart: Ferdinand Enke. 1975: 182. ISBN 3-432-02328-6. 
  2. ^ 2.0 2.1 2.2 Holleman, A. F.; Wiberg, E.; Wiberg, N. Lehrbuch der Anorganischen Chemie. 101st. Berlin: Walter de Gruyter. 1995: 379. ISBN 3-11-012641-9. 
  3. ^ Steudel, Ralf. Chemie der Nichtmetalle: Von Struktur und Bindung zur Anwendung. Walter de Gruyter. 2008: 475. ISBN 311021128-9. 
  4. ^ Kolditz, Lothar. Anorganische Chemie. Berlin: Deutscher Verlag der Wissenchaften. 1983: 468. 
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硫代氟化亚砜
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