return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: M06-2X/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at M06-2X/6-311+G(3df,2p)
 hartrees
Energy at 0K-356.013146
Energy at 298.15K 
HF Energy-356.013146
Nuclear repulsion energy189.192508
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 M06-2X/6-311+G(3df,2p)
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
A 148 148 12.60 0.23 0.71 0.83
A 318 318 65.40 1.56 0.47 0.64
A 396 396 30.15 1.16 0.39 0.56
A 564 564 7.30 10.43 0.28 0.44
A 735 735 6.67 4.26 0.72 0.84
A 804 804 12.61 0.17 0.62 0.76
A 883 883 164.10 8.79 0.11 0.19
A 1095 1095 11.84 5.82 0.18 0.31
A 1415 1415 221.12 11.56 0.21 0.35
A 1481 1481 73.82 5.09 0.37 0.54
A 1845 1845 499.10 2.87 0.71 0.83
A 3798 3798 71.79 60.02 0.20 0.33

Unscaled Zero Point Vibrational Energy (zpe) 6741.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 6741.8 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 M06-2X/6-311+G(3df,2p)
ABC
0.41478 0.16198 0.11796

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/6-311+G(3df,2p)

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.596 0.074 -0.001
O2 -0.575 -0.765 0.070
O3 -1.708 -0.009 -0.142
O4 1.579 -0.583 -0.021
O5 0.418 1.243 0.004
H6 -1.883 0.396 0.719

Atom - Atom Distances (Å)
  N1 O2 O3 O4 O5 H6
N11.44202.30981.18251.18252.6017
O21.44201.37922.16352.24141.8661
O32.30981.37923.33922.47190.9678
O41.18252.16353.33922.16353.6736
O51.18252.24142.47192.16352.5550
H62.60171.86610.96783.67362.5550

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 109.894 O2 N1 O4 110.656
O2 N1 O5 116.963 O2 O3 H6 103.952
O4 N1 O5 132.354
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N 1.125      
2 O -0.207      
3 O -0.241      
4 O -0.479      
5 O -0.479      
6 H 0.282      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.607 0.521 1.400 2.194
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -27.268 -1.195 -2.937
y -1.195 -29.641 0.785
z -2.937 0.785 -25.130
Traceless
 xyz
x 0.118 -1.195 -2.937
y -1.195 -3.442 0.785
z -2.937 0.785 3.325
Polar
3z2-r26.649
x2-y22.374
xy-1.195
xz-2.937
yz0.785


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.927 -0.481 -0.111
y -0.481 4.700 0.057
z -0.111 0.057 2.869


<r2> (average value of r2) Å2
<r2> 91.126
(<r2>)1/2 9.546