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

using model chemistry: MP2/cc-pVDZ

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/cc-pVDZ
 hartrees
Energy at 0K-355.164534
Energy at 298.15K-355.168325
HF Energy-354.210334
Nuclear repulsion energy184.024789
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/cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A 3758 3579 46.31      
2 A 1976 1882 197.21      
3 A 1417 1350 59.04      
4 A 1344 1281 192.68      
5 A 960 915 44.31      
6 A 791 753 136.31      
7 A 725 691 9.64      
8 A 644 613 32.86      
9 A 414 394 98.33      
10 A 379 361 35.98      
11 A 313 299 11.48      
12 A 147 140 10.13      

Unscaled Zero Point Vibrational Energy (zpe) 6434.3 cm-1
Scaled (by 0.9525) Zero Point Vibrational Energy (zpe) 6128.7 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/cc-pVDZ
ABC
0.39078 0.15308 0.11132

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/cc-pVDZ

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.638 0.087 -0.000
O2 -0.628 -0.804 0.047
O3 -1.744 0.031 -0.136
O4 1.613 -0.611 -0.012
O5 0.442 1.268 0.004
H6 -1.938 0.308 0.778

Atom - Atom Distances (Å)
  N1 O2 O3 O4 O5 H6
N11.54922.38711.19941.19662.6999
O21.54921.40622.25052.33231.8668
O32.38711.40623.42082.51600.9739
O41.19942.25053.42082.21373.7521
O51.19662.33232.51602.21372.6805
H62.69991.86680.97393.75212.6805

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 107.648 O2 N1 O4 109.270
O2 N1 O5 115.702 O2 O3 H6 101.776
O4 N1 O5 135.016
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability