4

C       0.019429025014992      0.294170819073454      0.204081112004496
Si      1.518550086950107      1.491611571550953      0.036913835829196
Si      1.206771300154214      0.154125613808917      1.613807426012516
C       0.149777555970285      1.593644321539677      1.773541036547340