O Si 
 1.0000000000000000
     7.7959827039902594    0.0000000000000000    0.0000000000000000
     0.0000000000000000    4.2695274972064761    0.0000000000000000
     0.0000000000000000    0.0000000000000000    8.3293177775694840
 O   Si 
  16   8
Selective dynamics
Cartesian
  0.0000000000000000  0.0000000000000000  0.0000000000000000   T   T   T
  3.8979913519951270  0.0000000000000000  0.0000000000000000   T   T   T
  0.0000000000000000  0.0000000000000000  4.1646588887847527   T   T   T
  3.8979913519951270  0.0000000000000000  4.1646588887847527   T   T   T
  0.0000000000000000  2.6180029994121230  2.0823294443923763   T   T   T
  3.8979913519951270  1.6515244977943013  2.0823294443923763   T   T   T
 -0.0000000000000000  1.6515244977943013  6.2469883331770761   T   T   T
  3.8979913519951270  2.6180029994121230  6.2469883331770761   T   T   T
  1.9489956759975635 -0.0000000000000000  6.6696985892813627   T   T   T
  5.8469870279926788  0.0000000000000000  5.8242780770727371   T   T   T
  5.8469870279926788  0.0000000000000000  1.6596191882879985   T   T   T
  1.9489956759975635 -0.0000000000000000  2.5050397004967029   T   T   T
  1.9489956759975635  2.1347637486032278  8.0191231368043301   T   T   T
  5.8469870279926788  2.1347637486032278  4.4748535295498124   T   T   T
  5.8469870279926788  2.1347637486032278  0.3101946407651208   T   T   T
  1.9489956759975635  2.1347637486032278  3.8544642480195948   T   T   T
  6.8750323780295570  3.2649866749156100  0.9193511948251792   T   T   T
  4.8189416779557899  1.0045408222908447  0.9193511948251792   T   T   T
  0.9209503259606571  3.2649866749156100  3.2453076939595076   T   T   T
  2.9770410260344780  1.0045408222908447  3.2453076939595076   T   T   T
  0.9209503259606571  1.0045408222908447  7.4099665827442225   T   T   T
  2.9770410260344780  3.2649866749156100  7.4099665827442225   T   T   T
  6.8750323780295570  1.0045408222908447  5.0840100836098623   T   T   T
  4.8189416779557899  3.2649866749156100  5.0840100836098623   T   T   T