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

using model chemistry: PBEPBEultrafine/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2D 1Ag
Energy calculated at PBEPBEultrafine/6-311G*
 hartrees
Energy at 0K-409.933761
Energy at 298.15K 
HF Energy-409.933761
Nuclear repulsion energy232.927756
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 PBEPBEultrafine/6-311G*
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 1419 1404 0.00 14.30 0.27 0.43
2 Ag 827 818 0.00 9.67 0.13 0.22
3 Ag 268 265 0.00 28.16 0.30 0.46
4 Au 93 92 0.00 0.00 0.00 0.00
5 B1u 1274 1260 454.59 0.00 0.00 0.00
6 B1u 741 733 243.57 0.00 0.00 0.00
7 B2g 626 619 0.00 0.22 0.75 0.86
8 B2u 1792 1773 539.88 0.00 0.00 0.00
9 B2u 194 192 0.19 0.00 0.00 0.00
10 B3g 1765 1747 0.00 10.76 0.75 0.86
11 B3g 460 455 0.00 10.13 0.75 0.86
12 B3u 395 391 9.15 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 4925.5 cm-1
Scaled (by 0.9896) Zero Point Vibrational Energy (zpe) 4874.3 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 PBEPBEultrafine/6-311G*
ABC
0.21486 0.11409 0.07452

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBEultrafine/6-311G*

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 0.930
N2 0.000 0.000 -0.930
O3 0.000 1.107 1.390
O4 0.000 -1.107 1.390
O5 0.000 1.107 -1.390
O6 0.000 -1.107 -1.390

Atom - Atom Distances (Å)
  N1 N2 O3 O4 O5 O6
N11.85911.19921.19922.57012.5701
N21.85912.57012.57011.19921.1992
O31.19922.57012.21482.77943.5539
O41.19922.57012.21483.55392.7794
O52.57011.19922.77943.55392.2148
O62.57011.19923.55392.77942.2148

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 112.564 N1 N2 O6 112.564
N2 N1 O3 112.564 N2 N1 O4 112.564
O3 N1 O4 134.872 O5 N2 O6 134.872
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N 0.300      
2 N 0.300      
3 O -0.150      
4 O -0.150      
5 O -0.150      
6 O -0.150      


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 -29.108 0.000 0.000
y 0.000 -35.729 0.000
z 0.000 0.000 -33.357
Traceless
 xyz
x 5.435 0.000 0.000
y 0.000 -4.497 0.000
z 0.000 0.000 -0.938
Polar
3z2-r2-1.877
x2-y26.621
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.824 0.000 0.000
y 0.000 6.424 0.000
z 0.000 0.000 6.877


<r2> (average value of r2) Å2
<r2> 133.583
(<r2>)1/2 11.558