O Si 1.0000000000000000 2.6308669753838525 -0.0000000000000000 0.0000000000000000 -0.0000000000000000 2.6308669753838516 -0.0000000000000000 0.0000000000000000 -0.0000000000000000 5.9876658872902899 O Si 2 1 Selective dynamics Cartesian 1.3154334876919260 1.3154334876919258 5.0004361870151692 T T T 1.3154334876919260 1.3154334876919258 0.9872297002751254 T T T 0.0000000000000000 0.0000000000000000 0.0000000000000000 T T T