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

using model chemistry: B2PLYP=FULL/6-31G**

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/6-31G**
 hartrees
Energy at 0K-409.840182
Energy at 298.15K 
HF Energy-409.443417
Nuclear repulsion energy235.026048
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/6-31G**
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 1414 1414 0.00 13.33 0.35 0.52
2 Ag 817 817 0.00 14.56 0.11 0.20
3 Ag 285 285 0.00 38.39 0.30 0.46
4 Au 100 100 0.00 0.00 0.00 0.00
5 B1u 1286 1286 411.33 0.00 0.00 0.00
6 B1u 741 741 225.36 0.00 0.00 0.00
7 B2g 663 663 0.00 0.42 0.75 0.86
8 B2u 1833 1833 442.92 0.00 0.00 0.00
9 B2u 221 221 0.21 0.00 0.00 0.00
10 B3g 1808 1808 0.00 9.81 0.75 0.86
11 B3g 493 493 0.00 12.06 0.75 0.86
12 B3u 421 421 13.80 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 5040.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 5040.3 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/6-31G**
ABC
0.21303 0.12072 0.07705

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/6-31G**

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 0.892
N2 0.000 0.000 -0.892
O3 0.000 1.112 1.354
O4 0.000 -1.112 1.354
O5 0.000 1.112 -1.354
O6 0.000 -1.112 -1.354

Atom - Atom Distances (Å)
  N1 N2 O3 O4 O5 O6
N11.78411.20441.20442.50662.5066
N21.78412.50662.50661.20441.2044
O31.20442.50662.22432.70873.5049
O41.20442.50662.22433.50492.7087
O52.50661.20442.70873.50492.2243
O62.50661.20443.50492.70872.2243

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 112.574 N1 N2 O6 112.574
N2 N1 O3 112.574 N2 N1 O4 112.574
O3 N1 O4 134.852 O5 N2 O6 134.852
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability