4
Ammonia has C3v symmetry
 1   0.119265112  -0.453804035  -2.424522131
 7   0.119265112  -0.453804035  -1.412522167
 1  -0.834857551  -0.453804035  -1.075188726
 1   0.596326950  -1.280098219  -1.075188726
