硫氰酸铯是一种无机化合物,化学式为CsSCN。

硫氰酸铯

别名 硫氰化铯
识别
CAS号 3879-01-4  checkY
SMILES
 
  • [Cs+].[S-]C#N
性质
化学式 CCsNS
摩尔质量 190.99 g·mol−1
密度 2.933 g·cm−3[1]
熔点 207 °C(480 K)[1]
210 °C(483 K)[2]
若非注明,所有数据均出自标准状态(25 ℃,100 kPa)下。

制备及性质

编辑

它可由氢氧化铯硫氰酸铵的反应制备[3],或由硫氰酸碳酸铯反应制得。它在210 °C熔化,在空气中加热至500~620 °C按下式分解:[2]

2 CsSCN + 5 O2 → Cs2SO4 + SO2 + 2 CO2 + N2

它和四氢噻吩氯化亚金在乙腈中反应,得到Cs[Au(SCN)2]。[4]它和草酸铯硒酸铀酰反应,得到单斜晶系的Cs[UO2(C2O4)(NCS)]·12H2O晶体。[5]

参考文献

编辑
  1. ^ 1.0 1.1 Prisyazhnyi, V. D.; Zmievskaya, T. A. Physical-chemical character of melts of complex compounds alkaline metal thiocyanate, trifluoroacetate-crown-ether. Ukrainskii Khimicheskii Zhurnal (Russian Edition), 2003. 69 (5-6): 9-16. ISSN: 0041-6045.
  2. ^ 2.0 2.1 Ptaszyński, B.; Skiba, E.; Krystek, J. Thermal decomposition of alkali metal, copper(I) and silver(I) thiocyanates. Thermochimica Acta. 1998, 319 (1-2): 75–85. ISSN 0040-6031. doi:10.1016/S0040-6031(98)00391-8. 
  3. ^ The conductivity of thiocyanates methyl alcohol. Proceedings of the Royal Society of London. Series A, Containing Papers of a Mathematical and Physical Character. 1997, 127 (804): 228–240. ISSN 0950-1207. doi:10.1098/rspa.1930.0053. 
  4. ^ Coker, Nathan L.; Krause Bauer, Jeanette A.; Elder, R. C. Emission Energy Correlates with Inverse of Gold−Gold Distance for Various [Au(SCN)2] Salts. Journal of the American Chemical Society. 2004, 126 (1): 12–13. ISSN 0002-7863. doi:10.1021/ja037012f. 
  5. ^ Medrish, I. V.; Peresypkina, E. V.; Virovets, A. V.; Serezhkina, L. B. Synthesis and structure of M[UO2(C2O4)​(NCS)​]​·0.5H2O (M = Rb or Cs). Zhurnal Neorganicheskoi Khimii, 2008. 53 (7): 1121-1126. ISSN: 0044-457X.