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

using model chemistry: B1B95/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B1B95/6-31G
 hartrees
Energy at 0K-355.756052
Energy at 298.15K-355.759717
HF Energy-355.756052
Nuclear repulsion energy181.084144
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 B1B95/6-31G
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 3579 3413 40.03      
2 A 1720 1640 268.74      
3 A 1394 1329 69.84      
4 A 1295 1235 218.07      
5 A 925 883 30.77      
6 A 777 741 108.71      
7 A 692 660 9.35      
8 A 613 584 17.02      
9 A 451 430 6.25      
10 A 359 342 113.40      
11 A 275 262 15.75      
12 A 131 125 13.41      

Unscaled Zero Point Vibrational Energy (zpe) 6104.7 cm-1
Scaled (by 0.9537) Zero Point Vibrational Energy (zpe) 5822.0 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 B1B95/6-31G
ABC
0.38189 0.14740 0.10779

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.643 0.081 0.004
O2 -0.628 -0.815 0.082
O3 -1.779 0.028 -0.159
O4 1.644 -0.609 -0.033
O5 0.454 1.282 0.014
H6 -2.021 0.348 0.740

Atom - Atom Distances (Å)
  N1 O2 O3 O4 O5 H6
N11.55712.42811.21611.21652.7766
O21.55711.44662.28402.36091.9300
O32.42811.44663.48372.56670.9843
O41.21612.28403.48372.23553.8655
O51.21652.36092.56672.23552.7427
H62.77661.93000.98433.86552.7427

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 107.817 O2 N1 O4 110.290
O2 N1 O5 116.144 O2 O3 H6 103.470
O4 N1 O5 133.552
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N 0.464      
2 O -0.142      
3 O -0.316      
4 O -0.205      
5 O -0.217      
6 H 0.417      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.362 0.717 1.870 2.422
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.670 -0.974 -3.843
y -0.974 -30.329 0.640
z -3.843 0.640 -25.117
Traceless
 xyz
x 1.053 -0.974 -3.843
y -0.974 -4.436 0.640
z -3.843 0.640 3.383
Polar
3z2-r26.766
x2-y23.659
xy-0.974
xz-3.843
yz0.640


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.730 -0.688 -0.189
y -0.688 3.962 0.083
z -0.189 0.083 1.551


<r2> (average value of r2) Å2
<r2> 98.234
(<r2>)1/2 9.911