O Si 
 1.0000000000000000
     8.5525656199810882    0.0000000000000000    0.0000000000000000
    -0.0000000000000000    5.4696030948910366    0.0000000000000000
     0.0000000000000000    0.0000000000000000    9.5437382335183081
 O   Si 
  16   8
Selective dynamics
Cartesian
  0.0000000000000000  0.0000000000000000  0.0000000000000000   T   T   T
  4.2762828099905530  0.0000000000000000  0.0000000000000000   T   T   T
  0.0000000000000000  0.0000000000000000  4.7718691167591532   T   T   T
  4.2762828099905530  0.0000000000000000  4.7718691167591532   T   T   T
 -0.0000000000000000  2.7348015474455183  0.0000000000000000   T   T   T
  4.2762828099905530  2.7348015474455183  0.0000000000000000   T   T   T
 -0.0000000000000000  2.7348015474455183  4.7718691167591532   T   T   T
  4.2762828099905530  2.7348015474455183  4.7718691167591532   T   T   T
  0.0000000000000000  1.1491617547954962  2.3859345583795766   T   T   T
  4.2762828099905530  4.3204413400955302  2.3859345583795766   T   T   T
 -0.0000000000000000  4.3204413400955302  7.1578036751387284   T   T   T
  4.2762828099905530  1.1491617547954962  7.1578036751387284   T   T   T
  2.1381414049952765 -0.0000000000000000  8.0548039298557175   T   T   T
  6.4144242149858188  0.0000000000000000  6.2608034204217340   T   T   T
  6.4144242149858188 -0.0000000000000000  1.4889343036625853   T   T   T
  2.1381414049952765 -0.0000000000000000  3.2829348130965625   T   T   T
  0.7980121757936701  4.7386640260931463  8.4277053800490442   T   T   T
  3.4782706341968823  0.7309390687978810  8.4277053800490442   T   T   T
  7.7545534441874286  4.7386640260931463  5.8879019702283983   T   T   T
  5.0742949857842241  0.7309390687978810  5.8879019702283983   T   T   T
  7.7545534441874286  0.7309390687978810  1.1160328534692534   T   T   T
  5.0742949857842241  4.7386640260931463  1.1160328534692534   T   T   T
  0.7980121757936701  0.7309390687978810  3.6558362632899013   T   T   T
  3.4782706341968823  4.7386640260931463  3.6558362632899013   T   T   T