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: B3LYP/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B3LYP/aug-cc-pVTZ
 hartrees
Energy at 0K-356.167173
Energy at 298.15K-356.171013
HF Energy-356.167173
Nuclear repulsion energy185.268690
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 B3LYP/aug-cc-pVTZ
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 3701 3580 53.03      
2 A 1784 1726 422.50      
3 A 1428 1382 59.94      
4 A 1345 1301 227.62      
5 A 995 963 41.27      
6 A 814 787 120.11      
7 A 744 720 10.34      
8 A 657 636 10.17      
9 A 457 442 21.03      
10 A 367 355 69.77      
11 A 304 294 14.89      
12 A 147 142 10.34      

Unscaled Zero Point Vibrational Energy (zpe) 6370.4 cm-1
Scaled (by 0.9675) Zero Point Vibrational Energy (zpe) 6163.4 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 B3LYP/aug-cc-pVTZ
ABC
0.40098 0.15328 0.11219

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/aug-cc-pVTZ

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.633 0.079 0.000
O2 -0.624 -0.777 0.042
O3 -1.752 0.033 -0.131
O4 1.595 -0.619 -0.009
O5 0.473 1.255 0.001
H6 -1.970 0.311 0.773

Atom - Atom Distances (Å)
  N1 O2 O3 O4 O5 H6
N11.52122.38891.18861.18682.7248
O21.52121.40002.22542.30941.8791
O32.38891.40003.41242.54140.9707
O41.18862.22543.41242.18403.7663
O51.18682.30942.54142.18402.7297
H62.72481.87910.97073.76632.7297

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 109.660 O2 N1 O4 109.810
O2 N1 O5 116.500 O2 O3 H6 103.375
O4 N1 O5 133.681
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N 1.025      
2 O -0.170      
3 O -0.208      
4 O -0.460      
5 O -0.422      
6 H 0.234      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.362 0.505 1.440 2.045
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.980 -0.805 -3.200
y -0.805 -29.868 0.629
z -3.200 0.629 -24.997
Traceless
 xyz
x 0.452 -0.805 -3.200
y -0.805 -3.879 0.629
z -3.200 0.629 3.427
Polar
3z2-r26.854
x2-y22.887
xy-0.805
xz-3.200
yz0.629


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.762 -0.346 -0.132
y -0.346 5.096 0.041
z -0.132 0.041 3.126


<r2> (average value of r2) Å2
<r2> 94.930
(<r2>)1/2 9.743