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

using model chemistry: PBEPBEultrafine/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 PBEPBEultrafine/cc-pVTZ
 hartrees
Energy at 0K-409.977130
Energy at 298.15K 
HF Energy-409.977130
Nuclear repulsion energy233.128344
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/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 1408 1399 0.00 15.04 0.33 0.50
2 Ag 823 817 0.00 11.85 0.10 0.18
3 Ag 268 266 0.00 29.59 0.29 0.45
4 Au 88 87 0.00 0.00 0.00 0.00
5 B1u 1264 1255 434.75 0.00 0.00 0.00
6 B1u 732 727 247.55 0.00 0.00 0.00
7 B2g 641 637 0.00 0.20 0.75 0.86
8 B2u 1774 1762 562.47 0.00 0.00 0.00
9 B2u 194 193 0.09 0.00 0.00 0.00
10 B3g 1747 1735 0.00 13.01 0.75 0.86
11 B3g 460 457 0.00 9.78 0.75 0.86
12 B3u 398 396 10.59 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 4898.7 cm-1
Scaled (by 0.9931) Zero Point Vibrational Energy (zpe) 4864.9 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/cc-pVTZ
ABC
0.21552 0.11410 0.07460

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

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 1.106 1.390
O4 0.000 -1.106 1.390
O5 0.000 1.106 -1.390
O6 0.000 -1.106 -1.390

Atom - Atom Distances (Å)
  N1 N2 O3 O4 O5 O6
N11.85831.19781.19782.56902.5690
N21.85832.56902.56901.19781.1978
O31.19782.56902.21142.77953.5518
O41.19782.56902.21143.55182.7795
O52.56901.19782.77953.55182.2114
O62.56901.19783.55182.77952.2114

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 112.616 N1 N2 O6 112.616
N2 N1 O3 112.616 N2 N1 O4 112.616
O3 N1 O4 134.769 O5 N2 O6 134.769
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N 0.276      
2 N 0.276      
3 O -0.138      
4 O -0.138      
5 O -0.138      
6 O -0.138      


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 -29.169 0.000 0.000
y 0.000 -35.522 0.000
z 0.000 0.000 -33.436
Traceless
 xyz
x 5.310 0.000 0.000
y 0.000 -4.219 0.000
z 0.000 0.000 -1.091
Polar
3z2-r2-2.182
x2-y26.353
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.380 0.000 0.000
y 0.000 6.730 0.000
z 0.000 0.000 7.509


<r2> (average value of r2) Å2
<r2> 133.439
(<r2>)1/2 11.552