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

using model chemistry: B3LYPultrafine/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 no D2D 1Ag
Energy calculated at B3LYPultrafine/6-31G*
 hartrees
Energy at 0K-410.168239
Energy at 298.15K-410.171615
Nuclear repulsion energy236.181378
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 B3LYPultrafine/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 1462 1400 0.00      
2 Ag 839 803 0.00      
3 Ag 299 286 0.00      
4 Au 95 91 0.00      
5 B1u 1330 1275 450.34      
6 B1u 756 724 234.64      
7 B2g 681 653 0.00      
8 B2u 1858 1780 584.81      
9 B2u 228 219 0.23      
10 B3g 1831 1754 0.00      
11 B3g 500 479 0.00      
12 B3u 434 415 16.59      

Unscaled Zero Point Vibrational Energy (zpe) 5156.6 cm-1
Scaled (by 0.958) Zero Point Vibrational Energy (zpe) 4940.0 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 B3LYPultrafine/6-31G*
ABC
0.21623 0.12108 0.07762

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/6-31G*

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 0.892
N2 0.000 0.000 -0.892
O3 0.000 1.104 1.352
O4 0.000 -1.104 1.352
O5 0.000 1.104 -1.352
O6 0.000 -1.104 -1.352

Atom - Atom Distances (Å)
  N1 N2 O3 O4 O5 O6
N11.78321.19611.19612.50052.5005
N21.78322.50052.50051.19611.1961
O31.19612.50052.20782.70413.4909
O41.19612.50052.20783.49092.7041
O52.50051.19612.70413.49092.2078
O62.50051.19613.49092.70412.2078

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 112.643 N1 N2 O6 112.643
N2 N1 O3 112.643 N2 N1 O4 112.643
O3 N1 O4 134.715 O5 N2 O6 134.715
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N 0.588      
2 N 0.588      
3 O -0.294      
4 O -0.294      
5 O -0.294      
6 O -0.294      


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 -28.902 0.000 0.000
y 0.000 -35.536 0.000
z 0.000 0.000 -33.536
Traceless
 xyz
x 5.634 0.000 0.000
y 0.000 -4.317 0.000
z 0.000 0.000 -1.316
Polar
3z2-r2-2.633
x2-y26.634
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.924 0.000 0.000
y 0.000 6.168 0.000
z 0.000 0.000 6.351


<r2> (average value of r2) Å2
<r2> 129.020
(<r2>)1/2 11.359