Si 
 1.0000000000000000
     2.7855379799653992   -0.0000000000000000    0.0000000000000000
    -1.3927689899826996    2.4123466538564244    0.0000000000000000
     0.0000000000000000    0.0000000000000000    4.5487581613385659
 Si 
   2
Selective dynamics
Cartesian
 -0.0000000139276901  1.6082311106121054  1.1371895403346415   T   T   T
  1.3927689760550104  0.8041155593266305  3.4115686210039242   T   T   T