A2B_tI12_141_e_a & a,c/a,z2 --params=4.126,3.47697527872,0.2915 & I4_{1}/amd D_{4h}^{19} #141 (ae) & tI12 & $C_{c}$ & ThSi2 & $\alpha$-ThSi$_{2}$ & G. Brauer and A. Mitius, Z. Anorg. Allg. Chem. 249, 325-339 (1942) 1.00000000000000 -2.06300000000000 2.06300000000000 7.17300000000000 2.06300000000000 -2.06300000000000 7.17300000000000 2.06300000000000 2.06300000000000 -7.17300000000000 Si Th 4 2 Direct 0.54150000000000 0.29150000000000 0.25000000000000 Si (8e) 0.29150000000000 0.54150000000000 0.75000000000000 Si (8e) 0.45850000000000 -0.29150000000000 0.75000000000000 Si (8e) -0.29150000000000 0.45850000000000 0.25000000000000 Si (8e) 0.87500000000000 0.12500000000000 0.75000000000000 Th (4a) 0.12500000000000 0.87500000000000 0.25000000000000 Th (4a)