AB2_hR6_166_c_2c & a,c/a,x1,x2,x3 --params=3.8548,7.95397945419,0.083,0.183,0.35 & R-3m D_{3d}^{5} #166 (c^3) & hR6 & $C12$ & CaSi2 & CaSi2 & S. M. Castillo et al., Inorg. Chem. 55, 10203-10207 (2016) 1.00000000000000 1.92740000000000 -1.11278490883608 10.22033333333330 0.00000000000000 2.22556981767217 10.22033333333330 -1.92740000000000 -1.11278490883608 10.22033333333330 Ca Si 2 4 Direct 0.08300000000000 0.08300000000000 0.08300000000000 Ca (2c) -0.08300000000000 -0.08300000000000 -0.08300000000000 Ca (2c) 0.18300000000000 0.18300000000000 0.18300000000000 Si (2c) -0.18300000000000 -0.18300000000000 -0.18300000000000 Si (2c) 0.35000000000000 0.35000000000000 0.35000000000000 Si (2c) -0.35000000000000 -0.35000000000000 -0.35000000000000 Si (2c)