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

using model chemistry: PBEPBEultrafine/aug-cc-pVDZ

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/aug-cc-pVDZ
 hartrees
Energy at 0K-409.894936
Energy at 298.15K 
HF Energy-409.894936
Nuclear repulsion energy232.261403
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/aug-cc-pVDZ
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 1411 1403 0.00 20.08 0.55 0.71
2 Ag 809 805 0.00 22.14 0.10 0.18
3 Ag 259 258 0.00 36.90 0.27 0.43
4 Au 83 83 0.00 0.00 0.00 0.00
5 B1u 1271 1263 429.82 0.00 0.00 0.00
6 B1u 716 712 240.88 0.00 0.00 0.00
7 B2g 631 627 0.00 0.36 0.75 0.86
8 B2u 1784 1773 582.98 0.00 0.00 0.00
9 B2u 185 184 0.03 0.00 0.00 0.00
10 B3g 1750 1739 0.00 22.15 0.75 0.86
11 B3g 438 436 0.00 8.22 0.75 0.86
12 B3u 392 389 10.60 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 4864.7 cm-1
Scaled (by 0.9939) Zero Point Vibrational Energy (zpe) 4835.0 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 PBEPBEultrafine/aug-cc-pVDZ
ABC
0.21365 0.11352 0.07413

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

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 1.111 1.394
O4 0.000 -1.111 1.394
O5 0.000 1.111 -1.394
O6 0.000 -1.111 -1.394

Atom - Atom Distances (Å)
  N1 N2 O3 O4 O5 O6
N11.85961.20351.20352.57532.5753
N21.85962.57532.57531.20351.2035
O31.20352.57532.22102.78763.5642
O41.20352.57532.22103.56422.7876
O52.57531.20352.78763.56422.2210
O62.57531.20353.56422.78762.2210

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 112.675 N1 N2 O6 112.675
N2 N1 O3 112.675 N2 N1 O4 112.675
O3 N1 O4 134.650 O5 N2 O6 134.650
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N 0.859      
2 N 0.859      
3 O -0.430      
4 O -0.430      
5 O -0.430      
6 O -0.430      


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 -29.801 0.000 0.000
y 0.000 -35.832 0.000
z 0.000 0.000 -34.366
Traceless
 xyz
x 5.298 0.000 0.000
y 0.000 -3.748 0.000
z 0.000 0.000 -1.549
Polar
3z2-r2-3.099
x2-y26.031
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.262 0.000 0.000
y 0.000 7.479 0.000
z 0.000 0.000 9.015


<r2> (average value of r2) Å2
<r2> 134.549
(<r2>)1/2 11.600