钋化钙是一种无机化合物,化学式为CaPo,可由在550 °C反应得到。在常压下,它以立方岩盐型结构结晶;[1]高压(16.7 GPa)时发生相变,转化为氯化铯型结构。[2]理论计算表明它是一种半导体[3]

钋化钙
IUPAC名
Calcium polonide
识别
CAS号 51681-45-9  checkY
性质
化学式 CaPo
摩尔质量 249.08 g·mol−1
外观 灰色固体
结构
晶体结构 NaCl
空间群 Fm3m (No. 225)
晶格常数 a = 0.6514 nm
若非注明,所有数据均出自标准状态(25 ℃,100 kPa)下。

参考文献

编辑
  1. ^ Witteman, W. G.; Giorgi, A. L.; Vier, D. T. The Preparation and Identification of Some Intermetallic Compounds of Polonium. The Journal of Physical Chemistry (American Chemical Society (ACS)). 1960, 64 (4): 434–440. ISSN 0022-3654. doi:10.1021/j100833a014. 
  2. ^ Shi, Liwei; Wu, Ling; Duan, Yifeng; Hao, Lanzhong; Hu, Jing; Yang, Xianqing; Tang, Gang. Band structure, phase transition, phonon and elastic instabilities in calcium polonide under pressure: A first-principles study. Solid State Communications (Elsevier BV). 2012, 152 (22): 2058–2062. ISSN 0038-1098. doi:10.1016/j.ssc.2012.08.028. 
  3. ^ Bhardwaj, Purvee; Singh, Sadhna. Phase transition and bulk properties of some polonide compounds: a comparative study. Phase Transitions (Informa UK Limited). 2015-06-09, 88 (9): 859–876. ISSN 0141-1594. doi:10.1080/01411594.2015.1020312.