6
rxn 7.6 part a
C    0.000000    0.000000   -1.218523
H    0.000000    1.043672   -1.569099
H    0.903846   -0.521836   -1.569099
H   -0.903846   -0.521836   -1.569099
C    0.000000    0.000000    0.216009
O    0.000000    0.000000    1.340298