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

using model chemistry: B1B95/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B1B95/3-21G*
 hartrees
Energy at 0K-353.904295
Energy at 298.15K-353.907824
HF Energy-353.904295
Nuclear repulsion energy180.498836
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 B1B95/3-21G*
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 3427 3273 20.10      
2 A 1529 1460 160.28      
3 A 1383 1320 73.85      
4 A 1171 1118 219.31      
5 A 1023 977 6.81      
6 A 802 765 88.03      
7 A 664 634 8.44      
8 A 635 606 5.31      
9 A 468 446 0.65      
10 A 342 326 11.65      
11 A 205 196 64.49      
12 A 104 99 53.31      

Unscaled Zero Point Vibrational Energy (zpe) 5875.7 cm-1
Scaled (by 0.9549) Zero Point Vibrational Energy (zpe) 5610.7 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 B1B95/3-21G*
ABC
0.37709 0.14929 0.10843

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/3-21G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.632 0.085 -0.002
O2 -0.603 -0.865 0.093
O3 -1.758 -0.004 -0.160
O4 1.687 -0.549 -0.036
O5 0.354 1.288 0.015
H6 -1.861 0.450 0.726

Atom - Atom Distances (Å)
  N1 O2 O3 O4 O5 H6
N11.56152.39721.23141.23422.6224
O21.56151.46342.31502.35751.9268
O32.39721.46343.49022.48201.0006
O41.23142.31503.49022.27023.7633
O51.23422.35752.48202.27022.4723
H62.62241.92681.00063.76332.4723

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 104.792 O2 N1 O4 111.416
O2 N1 O5 114.466 O2 O3 H6 101.224
O4 N1 O5 134.070
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N 0.537      
2 O -0.111      
3 O -0.304      
4 O -0.249      
5 O -0.267      
6 H 0.393      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.097 0.791 1.679 2.156
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.741 -1.243 -3.161
y -1.243 -28.837 0.724
z -3.161 0.724 -24.519
Traceless
 xyz
x -0.063 -1.243 -3.161
y -1.243 -3.207 0.724
z -3.161 0.724 3.270
Polar
3z2-r26.541
x2-y22.096
xy-1.243
xz-3.161
yz0.724


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.181 -0.695 -0.181
y -0.695 3.465 0.147
z -0.181 0.147 1.255


<r2> (average value of r2) Å2
<r2> 97.078
(<r2>)1/2 9.853