4

C       0.038483159161008      0.191786186075249      0.178955182286135
C       1.268395764979731      1.239553590633172      0.095835081747139
C       1.274046894850527      0.106092939059209      1.028494394236401
C      -0.194019751429673      0.946575979200357      1.138615980846801