4

C      -0.042253412288152      0.191786186075249      0.178955182286135
C       1.791408711356922      1.614553590633172      0.032535814990947
C       1.649046894850527      0.106092939059209      1.466039972913158
C      -0.130720484673481      1.259030400523600      1.513615980846801