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

using model chemistry: B97D3/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2D 1Ag
Energy calculated at B97D3/TZVP
 hartrees
Energy at 0K-410.137544
Energy at 298.15K 
HF Energy-410.137544
Nuclear repulsion energy231.721356
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 B97D3/TZVP
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 1412 1392 0.00 16.44 0.29 0.45
2 Ag 830 818 0.00 11.83 0.11 0.19
3 Ag 262 258 0.00 33.19 0.30 0.46
4 Au 82 81 0.00 0.00 0.00 0.00
5 B1u 1258 1240 503.79 0.00 0.00 0.00
6 B1u 738 728 295.03 0.00 0.00 0.00
7 B2g 600 591 0.00 0.34 0.75 0.86
8 B2u 1765 1739 620.81 0.00 0.00 0.00
9 B2u 192 189 0.09 0.00 0.00 0.00
10 B3g 1738 1713 0.00 18.48 0.75 0.86
11 B3g 440 434 0.00 10.56 0.75 0.86
12 B3u 387 381 8.42 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 4851.9 cm-1
Scaled (by 0.9856) Zero Point Vibrational Energy (zpe) 4782.0 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 B97D3/TZVP
ABC
0.21720 0.10955 0.07282

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/TZVP

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 0.955
N2 0.000 0.000 -0.955
O3 0.000 1.101 1.416
O4 0.000 -1.101 1.416
O5 0.000 1.101 -1.416
O6 0.000 -1.101 -1.416

Atom - Atom Distances (Å)
  N1 N2 O3 O4 O5 O6
N11.91051.19401.19402.61482.6148
N21.91052.61482.61481.19401.1940
O31.19402.61482.20282.83253.5882
O41.19402.61482.20283.58822.8325
O52.61481.19402.83253.58822.2028
O62.61481.19403.58822.83252.2028

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 112.713 N1 N2 O6 112.713
N2 N1 O3 112.713 N2 N1 O4 112.713
O3 N1 O4 134.575 O5 N2 O6 134.575
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N 0.110      
2 N 0.110      
3 O -0.055      
4 O -0.055      
5 O -0.055      
6 O -0.055      


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 -29.208 0.000 0.000
y 0.000 -35.983 0.000
z 0.000 0.000 -33.704
Traceless
 xyz
x 5.636 0.000 0.000
y 0.000 -4.528 0.000
z 0.000 0.000 -1.108
Polar
3z2-r2-2.217
x2-y26.776
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.339 0.000 0.000
y 0.000 7.001 0.000
z 0.000 0.000 8.193


<r2> (average value of r2) Å2
<r2> 136.369
(<r2>)1/2 11.678