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

using model chemistry: HSEh1PBE/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2D 1Ag
Energy calculated at HSEh1PBE/cc-pVTZ
 hartrees
Energy at 0K-409.949537
Energy at 298.15K 
HF Energy-409.949537
Nuclear repulsion energy239.940440
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 HSEh1PBE/cc-pVTZ
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 1430 0.00 19.18 0.54 0.70
2 Ag 870 836 0.00 17.13 0.12 0.21
3 Ag 321 308 0.00 33.86 0.31 0.47
4 Au 92 88 0.00 0.00 0.00 0.00
5 B1u 1355 1303 459.58 0.00 0.00 0.00
6 B1u 785 754 254.09 0.00 0.00 0.00
7 B2g 744 715 0.00 0.37 0.75 0.86
8 B2u 1901 1827 727.54 0.00 0.00 0.00
9 B2u 249 240 0.10 0.00 0.00 0.00
10 B3g 1867 1795 0.00 7.38 0.75 0.86
11 B3g 529 508 0.00 9.21 0.75 0.86
12 B3u 469 450 18.20 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 5334.7 cm-1
Scaled (by 0.9611) Zero Point Vibrational Energy (zpe) 5127.1 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 HSEh1PBE/cc-pVTZ
ABC
0.22238 0.12555 0.08025

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/cc-pVTZ

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 1.088 1.328
O4 0.000 -1.088 1.328
O5 0.000 1.088 -1.328
O6 0.000 -1.088 -1.328

Atom - Atom Distances (Å)
  N1 N2 O3 O4 O5 O6
N11.75001.17901.17902.45722.4572
N21.75002.45722.45721.17901.1790
O31.17902.45722.17702.65593.4341
O41.17902.45722.17703.43412.6559
O52.45721.17902.65593.43412.1770
O62.45721.17903.43412.65592.1770

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 112.593 N1 N2 O6 112.593
N2 N1 O3 112.593 N2 N1 O4 112.593
O3 N1 O4 134.813 O5 N2 O6 134.813
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N 0.334      
2 N 0.334      
3 O -0.167      
4 O -0.167      
5 O -0.167      
6 O -0.167      


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 -28.941 0.000 0.000
y 0.000 -35.822 0.000
z 0.000 0.000 -33.866
Traceless
 xyz
x 5.903 0.000 0.000
y 0.000 -4.419 0.000
z 0.000 0.000 -1.484
Polar
3z2-r2-2.968
x2-y26.881
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.317 0.000 0.000
y 0.000 6.475 0.000
z 0.000 0.000 6.561


<r2> (average value of r2) Å2
<r2> 125.597
(<r2>)1/2 11.207