13

C   -1.006215463  -0.203566404   0.039323585
C    0.487100228   0.185923820  -0.030061282
O    1.301564189  -0.757785383   0.052857808
O    0.724973696   1.422331940  -0.159634962
H   -1.223648142  -0.940991754  -0.733559633
H   -1.208099576  -0.678638500   0.999935449
H   -1.654410613   0.661570766  -0.082684221
H    2.403476351   1.998753465  -0.250749907
O    3.321962347   2.376467787  -0.308833855
C    4.199937865   1.284906525  -0.238460103
H    5.222837172   1.665732466  -0.298367439
H    4.102436829   0.719559030   0.693047854
H    4.056621041   0.570036457  -1.054313434