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

using model chemistry: HSEh1PBE/STO-3G

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/STO-3G
 hartrees
Energy at 0K-404.239310
Energy at 298.15K 
HF Energy-404.239310
Nuclear repulsion energy222.209852
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/STO-3G
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 1364 1205 0.00 8.80 0.25 0.40
2 Ag 758 669 0.00 7.96 0.11 0.20
3 Ag 261 230 0.00 17.91 0.36 0.53
4 Au 74 66 0.00 0.00 0.00 0.00
5 B1u 1311 1158 146.88 0.00 0.00 0.00
6 B1u 629 555 105.86 0.00 0.00 0.00
7 B2g 529 467 0.00 0.01 0.75 0.86
8 B2u 1786 1577 72.26 0.00 0.00 0.00
9 B2u 90 80 0.20 0.00 0.00 0.00
10 B3g 1809 1598 0.00 6.00 0.75 0.86
11 B3g 424 374 0.00 6.92 0.75 0.86
12 B3u 318 281 2.09 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 4676.4 cm-1
Scaled (by 0.8831) Zero Point Vibrational Energy (zpe) 4129.7 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/STO-3G
ABC
0.19110 0.10816 0.06907

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/STO-3G

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 0.924
N2 0.000 0.000 -0.924
O3 0.000 1.174 1.436
O4 0.000 -1.174 1.436
O5 0.000 1.174 -1.436
O6 0.000 -1.174 -1.436

Atom - Atom Distances (Å)
  N1 N2 O3 O4 O5 O6
N11.84741.28121.28122.63582.6358
N21.84742.63582.63581.28121.2812
O31.28122.63582.34842.87233.7101
O41.28122.63582.34843.71012.8723
O52.63581.28122.87233.71012.3484
O62.63581.28123.71012.87232.3484

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 113.577 N1 N2 O6 113.577
N2 N1 O3 113.577 N2 N1 O4 113.577
O3 N1 O4 132.846 O5 N2 O6 132.846
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N 0.132      
2 N 0.132      
3 O -0.066      
4 O -0.066      
5 O -0.066      
6 O -0.066      


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 -26.157 0.000 0.000
y 0.000 -31.636 0.000
z 0.000 0.000 -29.333
Traceless
 xyz
x 4.327 0.000 0.000
y 0.000 -3.891 0.000
z 0.000 0.000 -0.437
Polar
3z2-r2-0.873
x2-y25.479
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.690 0.000 0.000
y 0.000 4.477 0.000
z 0.000 0.000 5.158


<r2> (average value of r2) Å2
<r2> 140.205
(<r2>)1/2 11.841