18

C          1.31040        2.54690       -0.10940
C         -0.78920        1.14360       -0.05080
C          1.35850        0.03850       -0.06130
C         -1.43330       -0.09850       -0.05880
C          0.71860       -1.20260       -0.06410
C          0.60900        1.22080       -0.05790
C         -0.67880       -1.27820       -0.05770
C         -1.30150       -2.62610       -0.11800
O         -0.74370       -3.59030       -0.61470
O         -2.52210       -2.70490        0.45340
H          2.01050        2.63940        0.72700
H          1.86030        2.64190       -1.05130
H          0.60180        3.37940       -0.04770
H         -1.38720        2.05280       -0.06360
H          2.44590        0.07680       -0.08090
H         -2.51810       -0.11730       -0.10920
H          1.31470       -2.11480       -0.08570
H         -2.78630       -1.92560        0.97540
