O Si 
 1.0000000000000000
     6.8942032326980449    0.0000000000000000    0.0000000000000000
     0.0000000000000000    6.8942032326980449    0.0000000000000000
     0.0000000000000000    0.0000000000000000    6.8942032326980449
 O   Si 
  16   8
Selective dynamics
Cartesian
  1.0943610217497806  1.0943610217497797  1.0943610217497803   T   T   T
  2.3527405945992403  5.7998422109482659  4.5414626380988024   T   T   T
  5.7998422109482659  4.5414626380988024  2.3527405945992403   T   T   T
  4.5414626380988024  2.3527405945992403  5.7998422109482659   T   T   T
  4.3999627206172178  4.6502194713773308  0.1265766689009857   T   T   T
  5.9413421284298522  2.2439837613207128  3.5736782852500077   T   T   T
  2.4942405120808262  1.2031178550283121  3.3205249474480363   T   T   T
  0.9528611042682005  5.6910853776697357  6.7676265637970614   T   T   T
  0.1265766689009857  4.3999627206172178  4.6502194713773326   T   T   T
  3.5736782852500077  5.9413421284298522  2.2439837613207132   T   T   T
  3.3205249474480363  2.4942405120808262  1.2031178550283126   T   T   T
  6.7676265637970614  0.9528611042682003  5.6910853776697357   T   T   T
  4.6502194713773326  0.1265766689009857  4.3999627206172178   T   T   T
  2.2439837613207132  3.5736782852500077  5.9413421284298504   T   T   T
  1.2031178550283126  3.3205249474480363  2.4942405120808262   T   T   T
  5.6910853776697357  6.7676265637970614  0.9528611042682001   T   T   T
  2.0197618247575591  2.0197618247575591  2.0197618247575591   T   T   T
  1.4273397915914632  4.8744414079404894  5.4668634411065806   T   T   T
  4.8744414079404885  5.4668634411065806  1.4273397915914632   T   T   T
  5.4668634411065806  1.4273397915914632  4.8744414079404885   T   T   T
  0.1680973225316935  0.1680973225316935  0.1680973225316935   T   T   T
  3.2790042938173327  6.7261059101663534  3.6151989388807166   T   T   T
  6.7261059101663534  3.6151989388807166  3.2790042938173327   T   T   T
  3.6151989388807166  3.2790042938173327  6.7261059101663534   T   T   T