四氯化碳空间群及晶系晶胞参数原子坐标参数

Question

四氯化碳 空间群及晶系 晶胞参数 原子坐标参数

Answer 1

Solid tetrachloromethane has 2 polymorphs:crystalline II below −47.5 °C (225.6 K) and crystalline I above −47.5 °C.[3]
At −47.3 °C it has monoclinic crystal structure with space group C2/c and lattice constants a = 20.3,b = 11.6,c = 19.9 (.10−1 nm),β = 111°