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

using model chemistry: HSEh1PBE/6-31G**

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/6-31G**
 hartrees
Energy at 0K-409.788962
Energy at 298.15K 
HF Energy-409.788962
Nuclear repulsion energy239.164350
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/6-31G**
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 1501 1433 0.00 16.95 0.46 0.63
2 Ag 857 818 0.00 13.77 0.12 0.21
3 Ag 323 308 0.00 30.87 0.31 0.48
4 Au 97 93 0.00 0.00 0.00 0.00
5 B1u 1379 1316 435.89 0.00 0.00 0.00
6 B1u 778 742 224.48 0.00 0.00 0.00
7 B2g 721 688 0.00 0.38 0.75 0.86
8 B2u 1934 1846 626.90 0.00 0.00 0.00
9 B2u 252 241 0.26 0.00 0.00 0.00
10 B3g 1904 1817 0.00 5.43 0.75 0.86
11 B3g 530 506 0.00 8.91 0.75 0.86
12 B3u 459 438 18.56 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 5367.6 cm-1
Scaled (by 0.9543) Zero Point Vibrational Energy (zpe) 5122.3 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/6-31G**
ABC
0.21899 0.12636 0.08013

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/6-31G**

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 0.868
N2 0.000 0.000 -0.868
O3 0.000 1.097 1.325
O4 0.000 -1.097 1.325
O5 0.000 1.097 -1.325
O6 0.000 -1.097 -1.325

Atom - Atom Distances (Å)
  N1 N2 O3 O4 O5 O6
N11.73621.18821.18822.45202.4520
N21.73622.45202.45201.18821.1882
O31.18822.45202.19382.64983.4401
O41.18822.45202.19383.44012.6498
O52.45201.18822.64983.44012.1938
O62.45201.18823.44012.64982.1938

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 112.608 N1 N2 O6 112.608
N2 N1 O3 112.608 N2 N1 O4 112.608
O3 N1 O4 134.783 O5 N2 O6 134.783
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N 0.605      
2 N 0.605      
3 O -0.302      
4 O -0.302      
5 O -0.302      
6 O -0.302      


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 -28.880 0.000 0.000
y 0.000 -35.525 0.000
z 0.000 0.000 -33.638
Traceless
 xyz
x 5.702 0.000 0.000
y 0.000 -4.266 0.000
z 0.000 0.000 -1.436
Polar
3z2-r2-2.872
x2-y26.645
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.923 0.000 0.000
y 0.000 6.109 0.000
z 0.000 0.000 5.930


<r2> (average value of r2) Å2
<r2> 125.635
(<r2>)1/2 11.209