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All results from a given calculation for HOONO2 (peroxy nitric acid)

using model chemistry: MP2/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at MP2/6-31G
 hartrees
Energy at 0K-354.679014
Energy at 298.15K-354.682302
HF Energy-353.954819
Nuclear repulsion energy173.635851
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at MP2/6-31G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A 3535 3382 9.91      
2 A 1901 1819 64.66      
3 A 1301 1245 76.64      
4 A 1208 1156 151.08      
5 A 806 771 94.95      
6 A 726 695 139.49      
7 A 600 574 6.63      
8 A 513 491 53.86      
9 A 376 360 84.49      
10 A 310 296 79.73      
11 A 242 231 8.45      
12 A 114 109 8.63      

Unscaled Zero Point Vibrational Energy (zpe) 5814.7 cm-1
Scaled (by 0.9568) Zero Point Vibrational Energy (zpe) 5563.6 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at MP2/6-31G
ABC
0.35051 0.13451 0.09831

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.713 0.098 0.007
O2 -0.723 -0.887 0.049
O3 -1.837 0.102 -0.146
O4 1.703 -0.646 -0.021
O5 0.500 1.311 0.014
H6 -2.132 0.267 0.783

Atom - Atom Distances (Å)
  N1 O2 O3 O4 O5 H6
N11.74132.55451.23811.23222.9539
O21.74131.50222.43822.51531.9639
O32.55451.50223.61972.63590.9890
O41.23812.43823.61972.29744.0230
O51.23222.51532.63592.29742.9342
H62.95391.96390.98904.02302.9342

picture of peroxy nitric acid state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 O2 O3 103.676 O2 N1 O4 108.665
O2 N1 O5 114.455 O2 O3 H6 102.083
O4 N1 O5 136.880
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability