21

O 0.20301 0.81926 1.25218
C 0.17196 -0.55375 1.65631
C 0.52371 -0.60993 3.15011
C 1.93936 -0.12409 3.43270
C -1.21186 -1.15940 1.42841
C 0.14724 1.01102 -0.15883
C 0.36556 2.48377 -0.44712
H 0.92290 -1.12022 1.09123
H 0.42375 -1.63690 3.52022
H -0.17369 0.01714 3.71925
H 2.67510 -0.73480 2.90012
H 2.15364 -0.19356 4.50405
H 2.07272 0.91898 3.13023
H -1.99307 -0.52366 1.85868
H -1.28645 -2.15944 1.86675
H -1.42906 -1.25176 0.35948
H -0.83414 0.71223 -0.53927
H 0.92390 0.41684 -0.65203
H -0.37705 3.09455 0.07684
H 0.29593 2.68543 -1.51971
H 1.35037 2.80372 -0.09124