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

using model chemistry: mPW1PW91/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 mPW1PW91/Def2TZVPP
 hartrees
Energy at 0K-410.246646
Energy at 298.15K 
HF Energy-410.246646
Nuclear repulsion energy240.084281
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 mPW1PW91/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 1488 1488 0.00 21.71 0.55 0.71
2 Ag 870 870 0.00 19.72 0.12 0.21
3 Ag 319 319 0.00 36.74 0.31 0.47
4 Au 90 90 0.00 0.00 0.00 0.00
5 B1u 1355 1355 467.04 0.00 0.00 0.00
6 B1u 785 785 260.63 0.00 0.00 0.00
7 B2g 743 743 0.00 0.58 0.75 0.86
8 B2u 1894 1894 757.01 0.00 0.00 0.00
9 B2u 247 247 0.07 0.00 0.00 0.00
10 B3g 1860 1860 0.00 8.83 0.75 0.86
11 B3g 528 528 0.00 9.20 0.75 0.86
12 B3u 471 471 17.86 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 5324.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 5324.4 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 mPW1PW91/Def2TZVPP
ABC
0.22292 0.12553 0.08031

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/Def2TZVPP

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 0.875
N2 0.000 0.000 -0.875
O3 0.000 1.087 1.328
O4 0.000 -1.087 1.328
O5 0.000 1.087 -1.328
O6 0.000 -1.087 -1.328

Atom - Atom Distances (Å)
  N1 N2 O3 O4 O5 O6
N11.74931.17801.17802.45652.4565
N21.74932.45652.45651.17801.1780
O31.17802.45652.17442.65643.4328
O41.17802.45652.17443.43282.6564
O52.45651.17802.65643.43282.1744
O62.45651.17803.43282.65642.1744

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 112.644 N1 N2 O6 112.644
N2 N1 O3 112.644 N2 N1 O4 112.644
O3 N1 O4 134.712 O5 N2 O6 134.712
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N 0.410      
2 N 0.410      
3 O -0.205      
4 O -0.205      
5 O -0.205      
6 O -0.205      


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 -29.030 0.000 0.000
y 0.000 -35.891 0.000
z 0.000 0.000 -34.083
Traceless
 xyz
x 5.957 0.000 0.000
y 0.000 -4.335 0.000
z 0.000 0.000 -1.622
Polar
3z2-r2-3.245
x2-y26.861
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.527 0.000 0.000
y 0.000 6.699 0.000
z 0.000 0.000 6.899


<r2> (average value of r2) Å2
<r2> 125.595
(<r2>)1/2 11.207