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

using model chemistry: wB97X-D/LANL2DZ

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/LANL2DZ
 hartrees
Energy at 0K-409.943619
Energy at 298.15K 
HF Energy-409.943619
Nuclear repulsion energy232.745729
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/LANL2DZ
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 1336 1336 0.00 22.08 0.59 0.75
2 Ag 795 795 0.00 19.86 0.14 0.24
3 Ag 340 340 0.00 45.82 0.34 0.51
4 Au 85 85 0.00 0.00 0.00 0.00
5 B1u 1251 1251 400.47 0.00 0.00 0.00
6 B1u 725 725 201.78 0.00 0.00 0.00
7 B2g 672 672 0.00 0.86 0.75 0.86
8 B2u 1698 1698 501.22 0.00 0.00 0.00
9 B2u 248 248 0.37 0.00 0.00 0.00
10 B3g 1668 1668 0.00 8.81 0.75 0.86
11 B3g 499 499 0.00 12.24 0.75 0.86
12 B3u 441 441 12.23 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 4878.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 4878.5 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/LANL2DZ
ABC
0.20590 0.12129 0.07633

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/LANL2DZ

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 1.131 1.356
O4 0.000 -1.131 1.356
O5 0.000 1.131 -1.356
O6 0.000 -1.131 -1.356

Atom - Atom Distances (Å)
  N1 N2 O3 O4 O5 O6
N11.74751.22971.22972.50012.5001
N21.74752.50012.50011.22971.2297
O31.22972.50012.26252.71163.5315
O41.22972.50012.26253.53152.7116
O52.50011.22972.71163.53152.2625
O62.50011.22973.53152.71162.2625

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 113.079 N1 N2 O6 113.079
N2 N1 O3 113.079 N2 N1 O4 113.079
O3 N1 O4 133.842 O5 N2 O6 133.842
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/LANL2DZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N 0.246      
2 N 0.246      
3 O -0.123      
4 O -0.123      
5 O -0.123      
6 O -0.123      


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 -29.473 0.000 0.000
y 0.000 -38.342 0.000
z 0.000 0.000 -35.150
Traceless
 xyz
x 7.273 0.000 0.000
y 0.000 -6.031 0.000
z 0.000 0.000 -1.242
Polar
3z2-r2-2.484
x2-y28.869
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.625 0.000 0.000
y 0.000 7.083 0.000
z 0.000 0.000 6.540


<r2> (average value of r2) Å2
<r2> 131.897
(<r2>)1/2 11.485