5 -25 25 -25 25 -25 25 Si 0.7955699000000001 1.924478 0.05786345 Si 0.2789322 2.342777 2.34838 Si 2.533834 0.6960937 0.5593318 Si 1.694509 0.4311754 2.932881 Si 2.816233 2.726519 1.407602