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

using model chemistry: TPSSh/aug-cc-pVQZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2D 1Ag
Energy calculated at TPSSh/aug-cc-pVQZ
 hartrees
Energy at 0K-410.386150
Energy at 298.15K 
HF Energy-410.386150
Nuclear repulsion energy235.687525
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 TPSSh/aug-cc-pVQZ
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 1437 1437 0.00 22.79 0.59 0.74
2 Ag 842 842 0.00 24.45 0.11 0.20
3 Ag 279 279 0.00 40.47 0.28 0.43
4 Au 88 88 0.00 0.00 0.00 0.00
5 B1u 1288 1288 475.23 0.00 0.00 0.00
6 B1u 748 748 274.12 0.00 0.00 0.00
7 B2g 680 680 0.00 0.30 0.75 0.86
8 B2u 1805 1805 682.70 0.00 0.00 0.00
9 B2u 202 202 0.03 0.00 0.00 0.00
10 B3g 1774 1774 0.00 15.15 0.75 0.86
11 B3g 482 482 0.00 8.30 0.75 0.86
12 B3u 425 425 13.45 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 5024.0 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 5024.0 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 TPSSh/aug-cc-pVQZ
ABC
0.21885 0.11774 0.07655

See section I.F.4 to change rotational constant units
Geometric Data calculated at TPSSh/aug-cc-pVQZ

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 0.912
N2 0.000 0.000 -0.912
O3 0.000 1.097 1.369
O4 0.000 -1.097 1.369
O5 0.000 1.097 -1.369
O6 0.000 -1.097 -1.369

Atom - Atom Distances (Å)
  N1 N2 O3 O4 O5 O6
N11.82401.18861.18862.53112.5311
N21.82402.53112.53111.18861.1886
O31.18862.53112.19452.73783.5087
O41.18862.53112.19453.50872.7378
O52.53111.18862.73783.50872.1945
O62.53111.18863.50872.73782.1945

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 112.607 N1 N2 O6 112.607
N2 N1 O3 112.607 N2 N1 O4 112.607
O3 N1 O4 134.785 O5 N2 O6 134.785
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/aug-cc-pVQZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N 0.576      
2 N 0.576      
3 O -0.288      
4 O -0.288      
5 O -0.288      
6 O -0.288      


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


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.266 0.000 0.000
y 0.000 7.231 0.000
z 0.000 0.000 8.584


<r2> (average value of r2) Å2
<r2> 130.777
(<r2>)1/2 11.436