4

C       0.072931965987639      0.295014721334411      0.272642335204828
C       1.594034601013571      1.433813256035064      0.131329194118002
C       1.759786690179277      0.183657166502463      1.702887227140891
C       0.083433308841434      1.295854030846737      1.660287073403985