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

using model chemistry: QCISD(T)/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 QCISD(T)/6-31G*
 hartrees
Energy at 0K-355.137996
Energy at 298.15K-355.141735
HF Energy-354.172978
Nuclear repulsion energy183.542069
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 QCISD(T)/6-31G*
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 3632 3484        
2 A 1783 1710        
3 A 1435 1377        
4 A 1337 1283        
5 A 935 897        
6 A 793 761        
7 A 711 682        
8 A 639 613        
9 A 458 440        
10 A 368 353        
11 A 300 288        
12 A 134 129        

Unscaled Zero Point Vibrational Energy (zpe) 6262.0 cm-1
Scaled (by 0.9593) Zero Point Vibrational Energy (zpe) 6007.1 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 QCISD(T)/6-31G*
ABC
0.38871 0.15294 0.11117

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)/6-31G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.622 0.082 -0.001
O2 -0.601 -0.806 0.067
O3 -1.754 0.013 -0.147
O4 1.624 -0.598 -0.022
O5 0.429 1.277 0.008
H6 -1.934 0.344 0.760

Atom - Atom Distances (Å)
  N1 O2 O3 O4 O5 H6
N11.51262.38071.21131.21022.6796
O21.51261.42982.23642.32431.8923
O32.38071.42983.43452.52710.9821
O41.21132.23643.43452.22323.7629
O51.21022.32432.52712.22322.6497
H62.67961.89230.98213.76292.6497

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 107.983 O2 N1 O4 109.882
O2 N1 O5 116.786 O2 O3 H6 101.755
O4 N1 O5 133.305
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability