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    2.163703751   1.916412167  -0.237734219
O    3.082189747   2.294126489  -0.295818167
C    3.960165265   1.202565227  -0.225444415
H    4.983064572   1.583391168  -0.285351751
H    3.862664229   0.637217732   0.706063542
H    3.816848441   0.487695159  -1.041297746