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

using model chemistry: HSEh1PBE/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2D 1Ag
Energy calculated at HSEh1PBE/6-311+G(3df,2p)
 hartrees
Energy at 0K-409.945868
Energy at 298.15K 
HF Energy-409.945868
Nuclear repulsion energy240.255578
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 HSEh1PBE/6-311+G(3df,2p)
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 1489 1489 0.00 26.40 0.65 0.79
2 Ag 866 866 0.00 27.67 0.13 0.24
3 Ag 319 319 0.00 40.16 0.29 0.45
4 Au 90 90 0.00 0.00 0.00 0.00
5 B1u 1357 1357 452.06 0.00 0.00 0.00
6 B1u 782 782 253.84 0.00 0.00 0.00
7 B2g 747 747 0.00 0.22 0.75 0.86
8 B2u 1903 1903 756.99 0.00 0.00 0.00
9 B2u 245 245 0.03 0.00 0.00 0.00
10 B3g 1861 1861 0.00 10.70 0.75 0.86
11 B3g 520 520 0.00 7.76 0.75 0.86
12 B3u 472 472 17.27 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 5325.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 5325.3 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 HSEh1PBE/6-311+G(3df,2p)
ABC
0.22274 0.12602 0.08048

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/6-311+G(3df,2p)

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 0.874
N2 0.000 0.000 -0.874
O3 0.000 1.088 1.325
O4 0.000 -1.088 1.325
O5 0.000 1.088 -1.325
O6 0.000 -1.088 -1.325

Atom - Atom Distances (Å)
  N1 N2 O3 O4 O5 O6
N11.74801.17751.17752.45362.4536
N21.74802.45362.45361.17751.1775
O31.17752.45362.17532.65063.4289
O41.17752.45362.17533.42892.6506
O52.45361.17752.65063.42892.1753
O62.45361.17753.42892.65062.1753

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 112.535 N1 N2 O6 112.535
N2 N1 O3 112.535 N2 N1 O4 112.535
O3 N1 O4 134.931 O5 N2 O6 134.931
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N 0.777      
2 N 0.777      
3 O -0.389      
4 O -0.389      
5 O -0.389      
6 O -0.389      


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 -29.408 0.000 0.000
y 0.000 -35.806 0.000
z 0.000 0.000 -34.375
Traceless
 xyz
x 5.683 0.000 0.000
y 0.000 -3.914 0.000
z 0.000 0.000 -1.769
Polar
3z2-r2-3.538
x2-y26.398
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.078 0.000 0.000
y 0.000 6.940 0.000
z 0.000 0.000 7.610


<r2> (average value of r2) Å2
<r2> 125.489
(<r2>)1/2 11.202