4

C       0.123242161029637      0.246675175349589      0.114782369561972
Si      1.216210135635732      1.518980741599330      0.166134014110002
Si      1.608690141782521     -0.121106369019737      1.571659224422620
C       0.090205943823976      1.639185228201823      1.456776585843507