O Si 
 1.0000000000000000
     4.7325014313424605    0.0000000000000000    0.0000000000000000
    -0.0000000000000000    7.9723484993861264    0.0000000000000000
     0.0000000000000000    0.0000000000000000    8.6207697466595476
 O   Si 
  16   8
Selective dynamics
Cartesian
  0.0000000000000000  0.0000000000000000  0.0000000000000000   T   T   T
  2.3662507156712298  3.9861742496930641  0.0000000000000000   T   T   T
 -0.0000000000000000  3.9861742496930641  4.3103848733297738   T   T   T
  2.3662507156712298  0.0000000000000000  4.3103848733297738   T   T   T
  1.1831253578356149  1.9930871248465321  5.4504908119307078   T   T   T
  3.5493760735068447  5.9792613745395986  7.4806638080586110   T   T   T
  3.5493760735068447  5.9792613745395986  3.1702789347288376   T   T   T
  1.1831253578356149  1.9930871248465321  1.1401059386009349   T   T   T
  1.8748895877708054  7.5568582045681794  1.8230018297536990   T   T   T
  0.4913611279004253  4.4016645445110214  1.8230018297536990   T   T   T
  2.8576118435716555  3.5706839548751144  2.4873830435760693   T   T   T
  4.2411403034420347  0.4154902948179531  2.4873830435760693   T   T   T
  2.8576118435716555  0.4154902948179531  6.7977679169058458   T   T   T
  4.2411403034420347  3.5706839548751144  6.7977679169058458   T   T   T
  1.8748895877708054  4.4016645445110214  6.1333867030834677   T   T   T
  0.4913611279004253  7.5568582045681794  6.1333867030834677   T   T   T
  3.0147739863809844  7.4662661767743614  2.9341232364417729   T   T   T
  4.0839781606327064  4.4922565723048384  2.9341232364417729   T   T   T
  1.7177274449614750  3.4800919270812898  1.3762616368879967   T   T   T
  0.6485232707097544  0.5060823226117759  1.3762616368879967   T   T   T
  1.7177274449614750  0.5060823226117759  5.6866465102177681   T   T   T
  0.6485232707097544  3.4800919270812898  5.6866465102177681   T   T   T
  3.0147739863809844  4.4922565723048384  7.2445081097715436   T   T   T
  4.0839781606327064  7.4662661767743614  7.2445081097715436   T   T   T