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 HNO3 (Nitric acid)

using model chemistry: TPSSh/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at TPSSh/6-31G
 hartrees
Energy at 0K-280.774496
Energy at 298.15K 
HF Energy-280.774496
Nuclear repulsion energy121.747702
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 TPSSh/6-31G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3512 3379 48.17 67.50 0.32 0.48
2 A' 1630 1569 207.76 1.50 0.63 0.77
3 A' 1266 1218 134.82 7.34 0.57 0.72
4 A' 1217 1171 167.12 6.57 0.27 0.42
5 A' 805 774 157.02 8.99 0.14 0.25
6 A' 576 554 22.90 11.70 0.41 0.59
7 A' 516 496 7.73 4.39 0.65 0.79
8 A" 695 669 4.15 0.02 0.75 0.86
9 A" 461 444 176.79 5.86 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 5338.1 cm-1
Scaled (by 0.9621) Zero Point Vibrational Energy (zpe) 5135.7 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 TPSSh/6-31G
ABC
0.40542 0.37173 0.19392

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.168 0.000
O2 -0.262 -1.289 0.000
O3 1.206 0.502 0.000
O4 -1.025 0.850 0.000
H5 0.649 -1.682 0.000

Atom - Atom Distances (Å)
  N1 O2 O3 O4 H5
N11.48011.25111.23131.9604
O21.48012.31502.27090.9918
O31.25112.31502.25802.2534
O41.23132.27092.25803.0352
H51.96040.99182.25343.0352

picture of Nitric acid state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 O2 H5 103.160 O2 N1 O3 115.651
O2 N1 O4 113.443 O3 N1 O4 130.905
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N 0.412      
2 O -0.368      
3 O -0.248      
4 O -0.203      
5 H 0.406      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.389 -1.885 0.000 2.342
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.033 -0.355 0.000
y -0.355 3.723 0.000
z 0.000 0.000 0.928


<r2> (average value of r2) Å2
<r2> 58.940
(<r2>)1/2 7.677