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

using model chemistry: B3LYP/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2D 1Ag
Energy calculated at B3LYP/Def2TZVPP
 hartrees
Energy at 0K-410.356052
Energy at 298.15K 
HF Energy-410.356052
Nuclear repulsion energy237.025057
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 B3LYP/Def2TZVPP
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 1450 1396 0.00 19.70 0.51 0.68
2 Ag 852 820 0.00 18.11 0.11 0.20
3 Ag 295 284 0.00 38.41 0.30 0.46
4 Au 88 85 0.00 0.00 0.00 0.00
5 B1u 1308 1259 490.24 0.00 0.00 0.00
6 B1u 763 735 283.08 0.00 0.00 0.00
7 B2g 700 674 0.00 0.50 0.75 0.86
8 B2u 1823 1754 725.21 0.00 0.00 0.00
9 B2u 227 218 0.05 0.00 0.00 0.00
10 B3g 1790 1723 0.00 10.37 0.75 0.86
11 B3g 497 479 0.00 9.84 0.75 0.86
12 B3u 444 428 15.91 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 5118.2 cm-1
Scaled (by 0.9626) Zero Point Vibrational Energy (zpe) 4926.8 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 B3LYP/Def2TZVPP
ABC
0.22036 0.11988 0.07764

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/Def2TZVPP

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 0.901
N2 0.000 0.000 -0.901
O3 0.000 1.093 1.357
O4 0.000 -1.093 1.357
O5 0.000 1.093 -1.357
O6 0.000 -1.093 -1.357

Atom - Atom Distances (Å)
  N1 N2 O3 O4 O5 O6
N11.80261.18481.18482.50942.5094
N21.80262.50942.50941.18481.1848
O31.18482.50942.18702.71473.4860
O41.18482.50942.18703.48602.7147
O52.50941.18482.71473.48602.1870
O62.50941.18483.48602.71472.1870

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 112.639 N1 N2 O6 112.639
N2 N1 O3 112.639 N2 N1 O4 112.639
O3 N1 O4 134.723 O5 N2 O6 134.723
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N 0.384      
2 N 0.384      
3 O -0.192      
4 O -0.192      
5 O -0.192      
6 O -0.192      


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 -29.309 0.000 0.000
y 0.000 -36.208 0.000
z 0.000 0.000 -34.283
Traceless
 xyz
x 5.937 0.000 0.000
y 0.000 -4.412 0.000
z 0.000 0.000 -1.524
Polar
3z2-r2-3.049
x2-y26.899
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.568 0.000 0.000
y 0.000 6.834 0.000
z 0.000 0.000 7.465


<r2> (average value of r2) Å2
<r2> 129.368
(<r2>)1/2 11.374