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All results from a given calculation for CH2O2 (Dioxirane)

using model chemistry: QCISD/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at QCISD/6-31G**
 hartrees
Energy at 0K-189.128050
Energy at 298.15K-189.130913
HF Energy-188.604323
Nuclear repulsion energy72.850331
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 QCISD/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 A1 3150 2966 31.11      
2 A1 1614 1519 8.94      
3 A1 1327 1249 35.10      
4 A1 779 734 1.72      
5 A2 1044 983 0.00      
6 B1 3247 3057 42.56      
7 B1 1213 1142 9.86      
8 B2 1292 1216 0.89      
9 B2 936 881 17.49      

Unscaled Zero Point Vibrational Energy (zpe) 7301.2 cm-1
Scaled (by 0.9414) Zero Point Vibrational Energy (zpe) 6873.4 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 QCISD/6-31G**
ABC
0.96330 0.83224 0.49103

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.730
H2 0.922 0.000 1.306
H3 -0.922 0.000 1.306
O4 0.000 0.761 -0.437
O5 0.000 -0.761 -0.437

Atom - Atom Distances (Å)
  C1 H2 H3 O4 O5
C11.08691.08691.39311.3931
H21.08691.84342.11332.1133
H31.08691.84342.11332.1133
O41.39312.11332.11331.5227
O51.39312.11332.11331.5227

picture of Dioxirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O4 O5 56.871 C1 O5 O4 56.871
H2 C1 H3 115.990 H2 C1 O4 116.349
H2 C1 O5 116.349 H3 C1 O4 116.349
H3 C1 O5 116.349 O4 C1 O5 66.258
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability