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    2.243627951   1.943859266  -0.242072782
O    3.162113947   2.321573588  -0.300156730
C    4.040089465   1.230012326  -0.229782978
H    5.062988772   1.610838267  -0.289690314
H    3.942588429   0.664664831   0.701724979
H    3.896772641   0.515142258  -1.045636309