Sn 1.0000000000000000 3.7522853932090463 -0.0000000000000000 0.0000000000000000 -0.0000000000000000 3.7522853932090459 0.0000000000000000 -0.0000000000000000 0.0000000000000000 3.7522853932090463 Sn 2 Selective dynamics Cartesian 0.0000000000000000 0.0000000000000000 0.0000000000000000 T T T 1.8761426966045227 1.8761426966045229 1.8761426966045227 T T T