硫氰酸銫

硫氰酸銫是一種無機化合物，化學式為CsSCN。

硫氰酸銫
別名	硫氰化銫
識別
CAS號	3879-01-4  Y
SMILES	[Cs+].[S-]C#N
性質
化學式	CCsNS
摩爾質量	190.99 g·mol−1
密度	2.933 g·cm−3[1]
熔點	207 °C（480 K）[1] 210 °C（483 K）[2]
若非註明，所有數據均出自標準狀態（25 ℃，100 kPa）下。

製備及性質

它可由氫氧化銫和硫氰酸銨的反應製備^[3]，或由硫氰酸和碳酸銫反應製得。它在210 °C熔化，在空氣中加熱至500~620 °C按下式分解：^[2]

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

它和四氫噻吩氯化亞金在乙腈中反應，得到Cs[Au(SCN)₂]。^[4]它和草酸銫與硒酸鈾酰反應，得到單斜晶系的Cs[UO₂(C₂O₄)(NCS)]·1⁄2H₂O晶體。^[5]

參考文獻

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. 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.