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

using model chemistry: B1B95/6-31G(2df,p)

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 B1B95/6-31G(2df,p)
Rotational Constants (cm-1) from geometry optimized at B1B95/6-31G(2df,p)
See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31G(2df,p)
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (one short, two long)

Jump to S1C1
Energy calculated at B1B95/6-31G(2df,p)
 hartrees
Energy at 0K-280.169638
Energy at 298.15K-280.171377
Nuclear repulsion energy120.369041
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(2df,p)
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 1428 1367 43.02      
2 A1 1151 1102 1.01      
3 A1 193 185 1.52      
4 B1 822 788 13.25      
5 B2 1061 1016 13.91      
6 B2 439 421 20.58      

Unscaled Zero Point Vibrational Energy (zpe) 2547.1 cm-1
Scaled (by 0.9577) Zero Point Vibrational Energy (zpe) 2439.4 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 B1B95/6-31G(2df,p)
ABC
0.48875 0.44805 0.23376

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31G(2df,p)

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 0.037
O2 0.000 0.000 1.241
O3 0.000 1.038 -0.637
O4 0.000 -1.038 -0.637

Atom - Atom Distances (Å)
  N1 O2 O3 O4
N11.20381.23791.2379
O21.20382.14572.1457
O31.23792.14572.0767
O41.23792.14572.0767

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 122.987 O2 N1 O4 122.987
O3 N1 O4 114.027
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N 0.905      
2 O -0.339      
3 O -0.283      
4 O -0.283      


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 -0.118 0.118
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.518 0.000 0.000
y 0.000 -21.592 0.000
z 0.000 0.000 -22.137
Traceless
 xyz
x 2.347 0.000 0.000
y 0.000 -0.765 0.000
z 0.000 0.000 -1.582
Polar
3z2-r2-3.164
x2-y22.074
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.663 0.000 0.000
y 0.000 4.452 0.000
z 0.000 0.000 3.941


<r2> (average value of r2) Å2
<r2> 49.237
(<r2>)1/2 7.017