O Si 
 1.0000000000000000
     3.6801889202929323    0.0000000000000000    0.3616174879408767
     0.0000000000000000    5.5492015501935610    0.0000000000000001
     0.3983169552011154    0.0000000000000000    4.0919864242228625
 O   Si 
  16   8
Selective dynamics
Cartesian
  0.0000000000000000  1.9019382882622229  0.0000000000000000   T   T   T
  1.8400944601464677  4.6765390633590007  0.1808087439704387   T   T   T
  0.1991584776005585  2.4715873267245567  2.0459932121114286   T   T   T
  2.0392529377470252 -0.3030134483722180  2.2268019560818710   T   T   T
  1.2259862199010942  1.5214493591253955  1.9053456194574616   T   T   T
  2.8525196555929511  1.5214493591253972  2.5482582927062771   T   T   T
  3.0660806800475719  4.2960501342221633  2.0861543634278994   T   T   T
  1.0124251954464876  4.2960501342221651  2.3674495487358369   T   T   T
  3.0608905951790701  4.6045911887316073  0.7808613309427315   T   T   T
  1.0176152803149792  4.6045911887316091  3.6727425812210051   T   T   T
  4.9009850553255427  1.8299904136348237  0.9616700749131724   T   T   T
 -0.8224791798314889  1.8299904136348242  3.4919338372505662   T   T   T
  2.1079885493522457 -1.2457137536784355  3.0344116741485925   T   T   T
  1.9705173261417943 -1.2457137536784351  1.4191922380151449   T   T   T
  0.2678940892057811  1.5288870214183357  2.8536029301781558   T   T   T
  3.8106117862882707  1.5288870214183370  1.6000009819855829   T   T   T
  4.3451047940253282  5.4761465451403160  1.5316050650381243   T   T   T
 -0.2665989185312909  5.4761465451403177  2.9219988471256144   T   T   T
  2.5050103338788761  2.7015457700435377  1.3507963210676897   T   T   T
  1.5734955416151757  2.7015457700435368  3.1028075910960515   T   T   T
  2.5159669517692933  0.6862545596144680  1.0057965892448075   T   T   T
  1.5625389237247564  0.6862545596144689  3.4478073229189334   T   T   T
  0.6758724916228216  3.4608553347112414  0.8249878452743670   T   T   T
  3.4026333838712186  3.4608553347112441  3.6286160668893732   T   T   T