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

using model chemistry: B2PLYP=FULL/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2D 1Ag
Energy calculated at B2PLYP=FULL/STO-3G
 hartrees
Energy at 0K-404.071065
Energy at 298.15K 
HF Energy-403.860102
Nuclear repulsion energy216.945715
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 B2PLYP=FULL/STO-3G
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 1290 1290 0.00 7.50 0.10 0.18
2 Ag 705 705 0.00 6.99 0.15 0.26
3 Ag 205 205 0.00 20.06 0.33 0.50
4 Au 70 70 0.00 0.00 0.00 0.00
5 B1u 1230 1230 116.79 0.00 0.00 0.00
6 B1u 595 595 104.00 0.00 0.00 0.00
7 B2g 460 460 0.00 0.01 0.75 0.86
8 B2u 1710 1710 13.97 0.00 0.00 0.00
9 B2u 45 45 0.09 0.00 0.00 0.00
10 B3g 1721 1721 0.00 9.24 0.75 0.86
11 B3g 377 377 0.00 9.51 0.75 0.86
12 B3u 273 273 0.35 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 4340.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 4340.5 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 B2PLYP=FULL/STO-3G
ABC
0.18605 0.10041 0.06521

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/STO-3G

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 0.960
N2 0.000 0.000 -0.960
O3 0.000 1.190 1.490
O4 0.000 -1.190 1.490
O5 0.000 1.190 -1.490
O6 0.000 -1.190 -1.490

Atom - Atom Distances (Å)
  N1 N2 O3 O4 O5 O6
N11.91981.30291.30292.72392.7239
N21.91982.72392.72391.30291.3029
O31.30292.72392.38012.98053.8142
O41.30292.72392.38013.81422.9805
O52.72391.30292.98053.81422.3801
O62.72391.30293.81422.98052.3801

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 114.021 N1 N2 O6 114.021
N2 N1 O3 114.021 N2 N1 O4 114.021
O3 N1 O4 131.959 O5 N2 O6 131.959
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability