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

using model chemistry: B3LYP/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 B3LYP/aug-cc-pVQZ
 hartrees
Energy at 0K-410.372880
Energy at 298.15K 
HF Energy-410.372880
Nuclear repulsion energy237.103188
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 B3LYP/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 1447 1402 0.00 25.45 0.63 0.77
2 Ag 851 825 0.00 27.41 0.12 0.22
3 Ag 294 285 0.00 43.80 0.28 0.44
4 Au 88 85 0.00 0.00 0.00 0.00
5 B1u 1305 1265 481.18 0.00 0.00 0.00
6 B1u 763 739 277.76 0.00 0.00 0.00
7 B2g 702 681 0.00 0.31 0.75 0.86
8 B2u 1817 1761 736.84 0.00 0.00 0.00
9 B2u 226 219 0.02 0.00 0.00 0.00
10 B3g 1785 1729 0.00 13.21 0.75 0.86
11 B3g 497 482 0.00 8.34 0.75 0.86
12 B3u 444 431 16.46 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 5109.7 cm-1
Scaled (by 0.9689) Zero Point Vibrational Energy (zpe) 4950.8 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 B3LYP/aug-cc-pVQZ
ABC
0.22048 0.11998 0.07770

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/aug-cc-pVQZ

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 0.901
N2 0.000 0.000 -0.901
O3 0.000 1.093 1.357
O4 0.000 -1.093 1.357
O5 0.000 1.093 -1.357
O6 0.000 -1.093 -1.357

Atom - Atom Distances (Å)
  N1 N2 O3 O4 O5 O6
N11.80161.18451.18452.50842.5084
N21.80162.50842.50841.18451.1845
O31.18452.50842.18632.71363.4848
O41.18452.50842.18633.48482.7136
O52.50841.18452.71363.48482.1863
O62.50841.18453.48482.71362.1863

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 112.642 N1 N2 O6 112.642
N2 N1 O3 112.642 N2 N1 O4 112.642
O3 N1 O4 134.716 O5 N2 O6 134.716
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/aug-cc-pVQZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N 0.730      
2 N 0.730      
3 O -0.365      
4 O -0.365      
5 O -0.365      
6 O -0.365      


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 -29.506 0.000 0.000
y 0.000 -36.177 0.000
z 0.000 0.000 -34.549
Traceless
 xyz
x 5.857 0.000 0.000
y 0.000 -4.150 0.000
z 0.000 0.000 -1.707
Polar
3z2-r2-3.414
x2-y26.671
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.270 0.000 0.000
y 0.000 7.204 0.000
z 0.000 0.000 8.383


<r2> (average value of r2) Å2
<r2> 129.379
(<r2>)1/2 11.374