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

using model chemistry: B2PLYP=FULL/6-311+G(3df,2p)

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/6-311+G(3df,2p)
 hartrees
Energy at 0K-410.123715
Energy at 298.15K 
HF Energy-409.606303
Nuclear repulsion energy236.498659
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/6-311+G(3df,2p)
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 1408 0.00 21.46 0.59 0.74
2 Ag 831 831 0.00 28.94 0.11 0.20
3 Ag 282 282 0.00 50.03 0.27 0.43
4 Au 92 92 0.00 0.00 0.00 0.00
5 B1u 1270 1270 438.28 0.00 0.00 0.00
6 B1u 746 746 265.08 0.00 0.00 0.00
7 B2g 687 687 0.00 0.32 0.75 0.86
8 B2u 1813 1813 582.11 0.00 0.00 0.00
9 B2u 214 214 0.02 0.00 0.00 0.00
10 B3g 1774 1774 0.00 18.52 0.75 0.86
11 B3g 480 480 0.00 10.69 0.75 0.86
12 B3u 432 432 13.35 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 5013.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 5013.6 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/6-311+G(3df,2p)
ABC
0.21780 0.12051 0.07758

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/6-311+G(3df,2p)

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 0.898
N2 0.000 0.000 -0.898
O3 0.000 1.100 1.354
O4 0.000 -1.100 1.354
O5 0.000 1.100 -1.354
O6 0.000 -1.100 -1.354

Atom - Atom Distances (Å)
  N1 N2 O3 O4 O5 O6
N11.79581.19081.19082.50622.5062
N21.79582.50622.50621.19081.1908
O31.19082.50622.19982.70823.4890
O41.19082.50622.19983.48902.7082
O52.50621.19082.70823.48902.1998
O62.50621.19083.48902.70822.1998

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 112.528 N1 N2 O6 112.528
N2 N1 O3 112.528 N2 N1 O4 112.528
O3 N1 O4 134.943 O5 N2 O6 134.943
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability