20

C          5.12760       -0.18320        2.10420
C          5.10470       -1.86230        0.36570
C          6.52070       -0.26570        2.16870
C          6.49680       -1.94320        0.42850
C          2.90210       -0.91670        1.15990
C          2.39930        0.12080        0.16230
C          4.40630       -0.99030        1.21240
C          7.19280       -1.15240        1.33400
O          0.97530        0.13210        0.17740
O          8.54970       -1.28030        1.37850
H          4.60520        0.50770        2.76270
H          4.56880       -2.49340       -0.33960
H          7.05770        0.36170        2.87280
H          7.03530       -2.62840       -0.22000
H          2.48850       -1.90260        0.91030
H          2.50410       -0.69550        2.15880
H          2.75530        1.12320        0.42240
H          2.73290       -0.11500       -0.85370
H          0.69020        0.79040       -0.47880
H          8.88630       -0.73590        2.10870
