Si 
 1.0000000000000000
     6.9678842046612877   -0.0000000000000000    0.0000000000000000
    -0.0000000000000000    6.9678842046612877   -0.0000000000000000
    -0.0000000000000000   -0.0000000000000000    6.9678842046612877
 Si 
  12
Selective dynamics
Cartesian
  1.7419710511653219 -0.0000000000000000  3.4839421023306438   T   T   T
  5.2259131534959664 -0.0000000000000000  3.4839421023306438   T   T   T
  3.4839421023306438  1.7419710511653219 -0.0000000000000000   T   T   T
  3.4839421023306438  5.2259131534959664 -0.0000000000000000   T   T   T
 -0.0000000000000000  3.4839421023306438  1.7419710511653221   T   T   T
 -0.0000000000000000  3.4839421023306438  5.2259131534959664   T   T   T
 -0.0000000000000000  1.7419710511653219  3.4839421023306438   T   T   T
 -0.0000000000000000  5.2259131534959664  3.4839421023306438   T   T   T
  1.7419710511653219  3.4839421023306438 -0.0000000000000000   T   T   T
  5.2259131534959664  3.4839421023306438 -0.0000000000000000   T   T   T
  3.4839421023306438 -0.0000000000000000  5.2259131534959664   T   T   T
  3.4839421023306438 -0.0000000000000000  1.7419710511653221   T   T   T