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

using model chemistry: wB97X-D/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2D 1Ag
Energy calculated at wB97X-D/TZVP
 hartrees
Energy at 0K-410.184500
Energy at 298.15K 
HF Energy-410.184500
Nuclear repulsion energy239.966321
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 wB97X-D/TZVP
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 1485 1418 0.00 24.65 0.61 0.75
2 Ag 876 837 0.00 22.30 0.13 0.23
3 Ag 342 326 0.00 43.39 0.32 0.49
4 Au 85 81 0.00 0.00 0.00 0.00
5 B1u 1353 1292 503.14 0.00 0.00 0.00
6 B1u 793 757 267.09 0.00 0.00 0.00
7 B2g 710 678 0.00 0.93 0.75 0.86
8 B2u 1879 1794 796.08 0.00 0.00 0.00
9 B2u 268 256 0.15 0.00 0.00 0.00
10 B3g 1847 1764 0.00 8.87 0.75 0.86
11 B3g 536 512 0.00 10.19 0.75 0.86
12 B3u 470 449 17.37 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 5321.3 cm-1
Scaled (by 0.955) Zero Point Vibrational Energy (zpe) 5081.9 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 wB97X-D/TZVP
ABC
0.22249 0.12574 0.08034

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/TZVP

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 0.870
N2 0.000 0.000 -0.870
O3 0.000 1.088 1.328
O4 0.000 -1.088 1.328
O5 0.000 1.088 -1.328
O6 0.000 -1.088 -1.328

Atom - Atom Distances (Å)
  N1 N2 O3 O4 O5 O6
N11.74071.18061.18062.45312.4531
N21.74072.45312.45311.18061.1806
O31.18062.45312.17652.65633.4341
O41.18062.45312.17653.43412.6563
O52.45311.18062.65633.43412.1765
O62.45311.18063.43412.65632.1765

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 112.813 N1 N2 O6 112.813
N2 N1 O3 112.813 N2 N1 O4 112.813
O3 N1 O4 134.373 O5 N2 O6 134.373
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N 0.195      
2 N 0.195      
3 O -0.097      
4 O -0.097      
5 O -0.097      
6 O -0.097      


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 -29.094 0.000 0.000
y 0.000 -36.541 0.000
z 0.000 0.000 -34.575
Traceless
 xyz
x 6.463 0.000 0.000
y 0.000 -4.706 0.000
z 0.000 0.000 -1.757
Polar
3z2-r2-3.514
x2-y27.446
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.291 0.000 0.000
y 0.000 6.844 0.000
z 0.000 0.000 6.791


<r2> (average value of r2) Å2
<r2> 125.810
(<r2>)1/2 11.217