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All results from a given calculation for CH2O2 (Dioxirane)

using model chemistry: CISD/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at CISD/6-311G*
 hartrees
Energy at 0K-189.135873
Energy at 298.15K-189.138792
Nuclear repulsion energy74.360981
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 CISD/6-311G*
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 3190 2952 31.23      
2 A1 1630 1508 7.53      
3 A1 1408 1303 50.97      
4 A1 871 806 1.36      
5 A2 1092 1010 0.00      
6 B1 3293 3047 35.24      
7 B1 1240 1148 12.16      
8 B2 1325 1226 1.45      
9 B2 980 907 27.72      

Unscaled Zero Point Vibrational Energy (zpe) 7514.4 cm-1
Scaled (by 0.9253) Zero Point Vibrational Energy (zpe) 6953.1 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 CISD/6-311G*
ABC
0.97640 0.88967 0.51442

See section I.F.4 to change rotational constant units
Geometric Data calculated at CISD/6-311G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.725
H2 0.924 0.000 1.292
H3 -0.924 0.000 1.292
O4 0.000 0.734 -0.433
O5 0.000 -0.734 -0.433

Atom - Atom Distances (Å)
  C1 H2 H3 O4 O5
C11.08411.08411.37151.3715
H21.08411.84842.09032.0903
H31.08411.84842.09032.0903
O41.37152.09032.09031.4677
O51.37152.09032.09031.4677

picture of Dioxirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O4 O5 57.653 C1 O5 O4 57.653
H2 C1 H3 116.969 H2 C1 O4 116.207
H2 C1 O5 116.207 H3 C1 O4 116.207
H3 C1 O5 116.207 O4 C1 O5 64.695
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability