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

using model chemistry: B1B95/3-21G

19 10 17 12 22

States and conformations

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

Conformer 1 (all bonds equal)

Jump to S1C2
Vibrational Frequencies calculated at B1B95/3-21G
Rotational Constants (cm-1) from geometry optimized at B1B95/3-21G
See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/3-21G
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (one short, two long)

Jump to S1C1
Energy calculated at B1B95/3-21G
 hartrees
Energy at 0K-278.547161
Energy at 298.15K-278.548946
Nuclear repulsion energy114.036422
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 A1 1426 1364 161.61      
2 A1 928 888 1.17      
3 A1 477 457 8.97      
4 B1 648 620 12.49      
5 B2 571 546 1.36      
6 B2 441 422 51.62      

Unscaled Zero Point Vibrational Energy (zpe) 2245.3 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 2148.1 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
0.48203 0.37105 0.20966

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 0.113
O2 0.000 0.000 1.340
O3 0.000 1.046 -0.719
O4 0.000 -1.046 -0.719

Atom - Atom Distances (Å)
  N1 O2 O3 O4
N11.22731.33601.3360
O21.22732.30922.3092
O31.33602.30922.0912
O41.33602.30922.0912

picture of Nitrogen trioxide state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O2 N1 O3 128.499 O2 N1 O4 128.499
O3 N1 O4 103.001
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 0.506      
2 O -0.245      
3 O -0.130      
4 O -0.130      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 0.098 0.098
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.761 0.000 0.000
y 0.000 -21.489 0.000
z 0.000 0.000 -22.921
Traceless
 xyz
x 2.444 0.000 0.000
y 0.000 -0.148 0.000
z 0.000 0.000 -2.296
Polar
3z2-r2-4.593
x2-y21.728
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.630 0.000 0.000
y 0.000 3.963 0.000
z 0.000 0.000 3.349


<r2> (average value of r2) Å2
<r2> 53.575
(<r2>)1/2 7.320