4

O       0.027241716115138     -0.224618500907701     -0.297036678070415
O       1.448825502724540      1.720832918651046     -0.210150342778784
O       1.451674278647872     -0.033043494238916      1.406983661341969
O       0.181071097350948      1.328253212781030      1.631024784912768