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All results from a given calculation for NO3 (Nitrogen trioxide)

using model chemistry: CCD/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 3 yes one long, two short 2B2

Conformer 1 (all bonds equal)

Jump to S1C2 S1C3
Vibrational Frequencies calculated at CCD/6-31G*
Rotational Constants (cm-1) from geometry optimized at CCD/6-31G*
See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/6-31G*
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (one short, two long)

Jump to S1C1 S1C3
Vibrational Frequencies calculated at CCD/6-31G*
Rotational Constants (cm-1) from geometry optimized at CCD/6-31G*
See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/6-31G*
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 3 (one long, two short)

Jump to S1C1 S1C2
Energy calculated at CCD/6-31G*
 hartrees
Energy at 0K-279.482785
Energy at 298.15K-279.484968
HF Energy-278.811248
Nuclear repulsion energy117.429293
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 CCD/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 A1 1439 1362 160.51      
2 A1 958 906 75.73      
3 A1 652 617 1.65      
4 B1 772 730 17.48      
5 B2 1864 1764 455.28      
6 B2 468 443 8.70      

Unscaled Zero Point Vibrational Energy (zpe) 3075.6 cm-1
Scaled (by 0.9465) Zero Point Vibrational Energy (zpe) 2911.0 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 CCD/6-31G*
ABC
0.45337 0.43415 0.22177

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 -0.106
O2 0.000 0.000 1.272
O3 0.000 1.102 -0.590
O4 0.000 -1.102 -0.590

Atom - Atom Distances (Å)
  N1 O2 O3 O4
N11.37881.20311.2031
O21.37882.16372.1637
O31.20312.16372.2035
O41.20312.16372.2035

picture of Nitrogen trioxide state 1 conformation 3
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O2 N1 O3 113.690 O2 N1 O4 113.690
O3 N1 O4 132.620
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability