4

C      -0.291340564222745     -0.134497887636506      0.222770837519064
C       1.685843766726636      1.683628102820145      0.195819204081889
C       1.646850091681324      0.269594050077381      1.676262330459124
C      -0.145975214142782      1.667709995380444      1.492071295819763