16

  O     -2.901107   -0.516925    0.014877
  C     -1.554445   -0.417131    0.018622
  C     -0.746054   -1.561417    0.110896
  C      0.647893   -1.429232    0.112303
  C      1.246837   -0.157587    0.021780
  C      2.715112   -0.011057    0.023231
  O      3.311932    1.053959   -0.050869
  C      0.434785    0.998108   -0.071372
  C     -0.948367    0.871045   -0.073112
  O     -1.847214    1.902543   -0.158109
  H     -3.250413    0.397192   -0.055969
  H     -1.236161   -2.543073    0.180493
  H      1.287639   -2.323170    0.184463
  H      3.276076   -0.992237    0.101080
  H      0.933887    1.978757   -0.141086
  H     -1.370400    2.750226   -0.217228