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

using model chemistry: HSEh1PBE/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 HSEh1PBE/daug-cc-pVDZ
 hartrees
Energy at 0K-409.866128
Energy at 298.15K 
HF Energy-409.866128
Nuclear repulsion energy239.257692
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/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 1488 1488 0.00 26.67 0.63 0.77
2 Ag 858 858 0.00 28.11 0.13 0.24
3 Ag 318 318 0.00 41.07 0.28 0.44
4 Au 87 87 0.00 0.00 0.00 0.00
5 B1u 1362 1362 439.68 0.00 0.00 0.00
6 B1u 773 773 237.32 0.00 0.00 0.00
7 B2g 739 739 0.00 0.36 0.75 0.86
8 B2u 1906 1906 737.84 0.00 0.00 0.00
9 B2u 245 245 0.02 0.00 0.00 0.00
10 B3g 1869 1869 0.00 10.65 0.75 0.86
11 B3g 521 521 0.00 7.75 0.75 0.86
12 B3u 465 465 17.24 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 5314.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 5314.8 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 HSEh1PBE/daug-cc-pVDZ
ABC
0.22041 0.12550 0.07997

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

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 0.872
N2 0.000 0.000 -0.872
O3 0.000 1.093 1.329
O4 0.000 -1.093 1.329
O5 0.000 1.093 -1.329
O6 0.000 -1.093 -1.329

Atom - Atom Distances (Å)
  N1 N2 O3 O4 O5 O6
N11.74441.18501.18502.45792.4579
N21.74442.45792.45791.18501.1850
O31.18502.45792.18672.65823.4421
O41.18502.45792.18673.44212.6582
O52.45791.18502.65823.44212.1867
O62.45791.18503.44212.65822.1867

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 112.679 N1 N2 O6 112.679
N2 N1 O3 112.679 N2 N1 O4 112.679
O3 N1 O4 134.643 O5 N2 O6 134.643
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/daug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N 0.984      
2 N 0.984      
3 O -0.492      
4 O -0.492      
5 O -0.492      
6 O -0.492      


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 -29.473 0.000 0.000
y 0.000 -35.932 0.000
z 0.000 0.000 -34.521
Traceless
 xyz
x 5.754 0.000 0.000
y 0.000 -3.935 0.000
z 0.000 0.000 -1.819
Polar
3z2-r2-3.637
x2-y26.459
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.236 0.000 0.000
y 0.000 7.122 0.000
z 0.000 0.000 7.764


<r2> (average value of r2) Å2
<r2> 126.237
(<r2>)1/2 11.236