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All results from a given calculation for N2O4 (Dinitrogen tetroxide)

using model chemistry: wB97X-D/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2D 1Ag
Energy calculated at wB97X-D/6-31G*
 hartrees
Energy at 0K-410.031020
Energy at 298.15K 
HF Energy-410.031020
Nuclear repulsion energy239.817860
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 wB97X-D/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 Ag 1495 1418 0.00 18.58 0.51 0.67
2 Ag 857 813 0.00 15.37 0.13 0.23
3 Ag 341 323 0.00 32.96 0.32 0.48
4 Au 94 89 0.00 0.00 0.00 0.00
5 B1u 1382 1310 430.42 0.00 0.00 0.00
6 B1u 782 741 218.79 0.00 0.00 0.00
7 B2g 729 691 0.00 0.53 0.75 0.86
8 B2u 1921 1823 638.81 0.00 0.00 0.00
9 B2u 270 256 0.27 0.00 0.00 0.00
10 B3g 1892 1795 0.00 4.84 0.75 0.86
11 B3g 543 515 0.00 8.94 0.75 0.86
12 B3u 470 446 21.19 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 5386.9 cm-1
Scaled (by 0.9485) Zero Point Vibrational Energy (zpe) 5109.4 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 wB97X-D/6-31G*
ABC
0.21899 0.12817 0.08085

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/6-31G*

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 0.857
N2 0.000 0.000 -0.857
O3 0.000 1.097 1.317
O4 0.000 -1.097 1.317
O5 0.000 1.097 -1.317
O6 0.000 -1.097 -1.317

Atom - Atom Distances (Å)
  N1 N2 O3 O4 O5 O6
N11.71381.18951.18952.43492.4349
N21.71382.43492.43491.18951.1895
O31.18952.43492.19382.63393.4279
O41.18952.43492.19383.42792.6339
O52.43491.18952.63393.42792.1938
O62.43491.18953.42792.63392.1938

picture of Dinitrogen tetroxide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 N2 O5 112.754 N1 N2 O6 112.754
N2 N1 O3 112.754 N2 N1 O4 112.754
O3 N1 O4 134.491 O5 N2 O6 134.491
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N 0.618      
2 N 0.618      
3 O -0.309      
4 O -0.309      
5 O -0.309      
6 O -0.309      


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 0.000 0.000
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.844 0.000 0.000
y 0.000 -35.679 0.000
z 0.000 0.000 -33.859
Traceless
 xyz
x 5.924 0.000 0.000
y 0.000 -4.327 0.000
z 0.000 0.000 -1.597
Polar
3z2-r2-3.194
x2-y26.834
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.915 0.000 0.000
y 0.000 6.154 0.000
z 0.000 0.000 5.821


<r2> (average value of r2) Å2
<r2> 124.764
(<r2>)1/2 11.170