O Si 
 1.0000000000000000
     3.4492600159169253    0.0000000000000000    0.0000000000000000
     0.0000000000000000    5.7604187373156952    0.0000000000000000
     0.0000000000000000    0.0000000000000000    4.3222784525742615
 O   Si 
  16   8
Selective dynamics
Cartesian
  1.6127356115721339  0.0000000000000000 -0.0000000000000000   T   T   T
  1.8365244043447910 -0.0000000000000000  2.1611392262871321   T   T   T
 -0.1118943963863298  2.8802093686578498 -0.0000000000000000   T   T   T
  3.5611544123032486  2.8802093686578498  2.1611392262871321   T   T   T
  0.0000000000000003  2.1592446055497398  1.0805696131435660   T   T   T
  0.0000000000000003  3.6011741317659633  3.2417088394306970   T   T   T
  1.7246300079584602 -0.7209647631081157  1.0805696131435660   T   T   T
  1.7246300079584602  6.4813835004238118  3.2417088394306970   T   T   T
  2.8019001360357834  2.4893543495288983  3.1473825627715128   T   T   T
  0.6473598798811449  3.2710643877868022  0.9862433364843826   T   T   T
  0.6473598798811447  2.4893543495288983  3.3360351160898878   T   T   T
  2.8019001360357834  3.2710643877868022  1.1748958898027524   T   T   T
  1.0772701280773220  5.3695637181867513  3.1473825627715128   T   T   T
  2.3719898878396082  0.3908550191289517  0.9862433364843826   T   T   T
  2.3719898878396091  5.3695637181867513  3.3360351160898878   T   T   T
  1.0772701280773216  0.3908550191289517  1.1748958898027524   T   T   T
  1.5852116674513064  1.9021604927081825  2.0513384851050365   T   T   T
  1.8640483484656201  3.8582582446075153  4.2124777113921601   T   T   T
  1.8640483484656201  1.9021604927081825  0.1098007411821011   T   T   T
  1.5852116674513064  3.8582582446075149  2.2709399674692401   T   T   T
  3.3098416754097642  4.7823698613660337  2.0513384851050365   T   T   T
  0.1394183405071592  0.9780488759496672  4.2124777113921601   T   T   T
  0.1394183405071594  4.7823698613660337  0.1098007411821011   T   T   T
  3.3098416754097642  0.9780488759496671  2.2709399674692401   T   T   T