6
 
N     0.0000000   -0.7296734   -0.3498847 
N     0.0000000    0.7296734   -0.3498847 
H    -0.8019523    1.0488615    0.1774826 
H     0.8019523    1.0488615    0.1774826 
H    -0.8019523   -1.0488615    0.1774826 
H     0.8019523   -1.0488615    0.1774826 
