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

using model chemistry: PBEPBEultrafine/daug-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/daug-cc-pVDZ
 hartrees
Energy at 0K-409.896521
Energy at 298.15K 
HF Energy-409.896521
Nuclear repulsion energy232.290664
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/daug-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 1410 1410 0.00 20.44 0.54 0.70
2 Ag 811 811 0.00 22.27 0.10 0.18
3 Ag 260 260 0.00 37.43 0.26 0.42
4 Au 85 85 0.00 0.00 0.00 0.00
5 B1u 1269 1269 425.99 0.00 0.00 0.00
6 B1u 718 718 238.22 0.00 0.00 0.00
7 B2g 640 640 0.00 0.34 0.75 0.86
8 B2u 1781 1781 586.95 0.00 0.00 0.00
9 B2u 187 187 0.03 0.00 0.00 0.00
10 B3g 1752 1752 0.00 20.01 0.75 0.86
11 B3g 449 449 0.00 8.10 0.75 0.86
12 B3u 397 397 10.30 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 4879.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 4879.4 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/daug-cc-pVDZ
ABC
0.21376 0.11356 0.07416

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

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 0.929
N2 0.000 0.000 -0.929
O3 0.000 1.110 1.394
O4 0.000 -1.110 1.394
O5 0.000 1.110 -1.394
O6 0.000 -1.110 -1.394

Atom - Atom Distances (Å)
  N1 N2 O3 O4 O5 O6
N11.85751.20371.20372.57432.5743
N21.85752.57432.57431.20371.2037
O31.20372.57432.22052.78763.5639
O41.20372.57432.22053.56392.7876
O52.57431.20372.78763.56392.2205
O62.57431.20373.56392.78762.2205

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 112.727 N1 N2 O6 112.727
N2 N1 O3 112.727 N2 N1 O4 112.727
O3 N1 O4 134.546 O5 N2 O6 134.546
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/daug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N 1.585      
2 N 1.585      
3 O -0.792      
4 O -0.792      
5 O -0.792      
6 O -0.792      


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 -29.794 0.000 0.000
y 0.000 -35.806 0.000
z 0.000 0.000 -34.333
Traceless
 xyz
x 5.276 0.000 0.000
y 0.000 -3.743 0.000
z 0.000 0.000 -1.533
Polar
3z2-r2-3.066
x2-y26.013
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.436 0.000 0.000
y 0.000 7.541 0.000
z 0.000 0.000 9.096


<r2> (average value of r2) Å2
<r2> 134.492
(<r2>)1/2 11.597