4

C      -0.042106637483934      0.191786186075249      0.154630596468808
C       1.791408711356922      1.614553590633172      0.032535814990947
C       1.712346161606719      0.106092939059209      1.403494394236401
C      -0.194019751429673      1.321575979200357      1.513615980846801