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

using model chemistry: MP2=FULL/TZVP

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=FULL/TZVP
 hartrees
Energy at 0K-355.413885
Energy at 298.15K-355.417629
HF Energy-354.308891
Nuclear repulsion energy183.896502
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=FULL/TZVP
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 3767 3589 44.94      
2 A 1933 1841 241.60      
3 A 1393 1327 55.83      
4 A 1309 1247 197.78      
5 A 970 925 46.80      
6 A 790 753 153.74      
7 A 700 667 5.75      
8 A 640 609 35.43      
9 A 409 390 99.84      
10 A 385 367 61.52      
11 A 309 294 2.51      
12 A 128 122 10.65      

Unscaled Zero Point Vibrational Energy (zpe) 6366.8 cm-1
Scaled (by 0.9527) Zero Point Vibrational Energy (zpe) 6065.6 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=FULL/TZVP
ABC
0.39201 0.15178 0.11077

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/TZVP

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.644 0.085 0.001
O2 -0.638 -0.794 0.057
O3 -1.752 0.039 -0.143
O4 1.607 -0.622 -0.019
O5 0.466 1.264 0.008
H6 -1.976 0.304 0.763

Atom - Atom Distances (Å)
  N1 O2 O3 O4 O5 H6
N11.55602.40141.19481.19222.7374
O21.55601.40642.25272.33631.8697
O32.40141.40643.42612.53830.9701
O41.19482.25273.42612.20463.7825
O51.19222.33632.53832.20462.7300
H62.73741.86970.97013.78252.7300

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 108.212 O2 N1 O4 109.252
O2 N1 O5 115.819 O2 O3 H6 102.205
O4 N1 O5 134.918
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability