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

using model chemistry: B2PLYP=FULLultrafine/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2D 1Ag
Energy calculated at B2PLYP=FULLultrafine/6-31G(2df,p)
 hartrees
Energy at 0K-409.948471
Energy at 298.15K 
HF Energy-409.484888
Nuclear repulsion energy236.697792
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 B2PLYP=FULLultrafine/6-31G(2df,p)
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 1415 1415 0.00 14.65 0.38 0.55
2 Ag 829 829 0.00 16.63 0.10 0.18
3 Ag 290 290 0.00 36.54 0.29 0.45
4 Au 100 100 0.00 0.00 0.00 0.00
5 B1u 1285 1285 389.23 0.00 0.00 0.00
6 B1u 751 751 223.49 0.00 0.00 0.00
7 B2g 698 698 0.00 0.18 0.75 0.86
8 B2u 1837 1837 477.63 0.00 0.00 0.00
9 B2u 222 222 0.12 0.00 0.00 0.00
10 B3g 1810 1810 0.00 8.80 0.75 0.86
11 B3g 499 499 0.00 10.64 0.75 0.86
12 B3u 436 436 13.76 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 5085.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 5085.5 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 B2PLYP=FULLultrafine/6-31G(2df,p)
ABC
0.21605 0.12239 0.07813

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULLultrafine/6-31G(2df,p)

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 0.887
N2 0.000 0.000 -0.887
O3 0.000 1.104 1.345
O4 0.000 -1.104 1.345
O5 0.000 1.104 -1.345
O6 0.000 -1.104 -1.345

Atom - Atom Distances (Å)
  N1 N2 O3 O4 O5 O6
N11.77501.19521.19522.49042.4904
N21.77502.49042.49041.19521.1952
O31.19522.49042.20872.68933.4800
O41.19522.49042.20873.48002.6893
O52.49041.19522.68933.48002.2087
O62.49041.19523.48002.68932.2087

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 112.488 N1 N2 O6 112.488
N2 N1 O3 112.488 N2 N1 O4 112.488
O3 N1 O4 135.024 O5 N2 O6 135.024
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP=FULLultrafine/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N 0.558      
2 N 0.558      
3 O -0.279      
4 O -0.279      
5 O -0.279      
6 O -0.279      


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 -28.907 0.000 0.000
y 0.000 -35.045 0.000
z 0.000 0.000 -33.301
Traceless
 xyz
x 5.267 0.000 0.000
y 0.000 -3.941 0.000
z 0.000 0.000 -1.325
Polar
3z2-r2-2.651
x2-y26.139
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.479 0.000 0.000
y 0.000 6.330 0.000
z 0.000 0.000 6.976


<r2> (average value of r2) Å2
<r2> 128.160
(<r2>)1/2 11.321