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

using model chemistry: B2PLYP=FULL/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 B2PLYP=FULL/daug-cc-pVDZ
 hartrees
Energy at 0K-409.945184
Energy at 298.15K 
HF Energy-409.523083
Nuclear repulsion energy234.732738
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/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 1401 1401 0.00 21.46 0.56 0.72
2 Ag 820 820 0.00 29.68 0.11 0.19
3 Ag 275 275 0.00 52.48 0.27 0.42
4 Au 89 89 0.00 0.00 0.00 0.00
5 B1u 1265 1265 431.31 0.00 0.75 0.86
6 B1u 734 734 252.15 0.00 0.52 0.68
7 B2g 673 673 0.00 0.49 0.75 0.86
8 B2u 1802 1802 558.50 0.00 0.00 0.00
9 B2u 210 210 0.01 0.00 0.00 0.00
10 B3g 1771 1771 0.00 19.24 0.75 0.86
11 B3g 478 478 0.00 10.99 0.75 0.86
12 B3u 423 423 12.75 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 4970.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 4970.5 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/daug-cc-pVDZ
ABC
0.21477 0.11871 0.07645

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/daug-cc-pVDZ

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 0.902
N2 0.000 0.000 -0.902
O3 0.000 1.108 1.365
O4 0.000 -1.108 1.365
O5 0.000 1.108 -1.365
O6 0.000 -1.108 -1.365

Atom - Atom Distances (Å)
  N1 N2 O3 O4 O5 O6
N11.80311.20071.20072.52292.5229
N21.80312.52292.52291.20071.2007
O31.20072.52292.21522.73043.5160
O41.20072.52292.21523.51602.7304
O52.52291.20072.73043.51602.2152
O62.52291.20073.51602.73042.2152

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 112.715 N1 N2 O6 112.715
N2 N1 O3 112.715 N2 N1 O4 112.715
O3 N1 O4 134.571 O5 N2 O6 134.571
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability