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All results from a given calculation for CH2O2 (Dioxirane)

using model chemistry: CISD/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 CISD/6-31G
 hartrees
Energy at 0K-188.833228
Energy at 298.15K-188.836025
Nuclear repulsion energy70.321544
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/6-31G
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 3203 3004 6.99      
2 A1 1611 1511 1.07      
3 A1 1213 1137 19.74      
4 A1 724 679 0.62      
5 A2 1048 983 0.00      
6 B1 3313 3107 24.82      
7 B1 1189 1115 8.31      
8 B2 1294 1214 5.25      
9 B2 806 756 11.04      

Unscaled Zero Point Vibrational Energy (zpe) 7200.3 cm-1
Scaled (by 0.9378) Zero Point Vibrational Energy (zpe) 6752.5 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 CISD/6-31G
ABC
0.91768 0.75890 0.45399

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.756
H2 0.925 0.000 1.319
H3 -0.925 0.000 1.319
O4 0.000 0.800 -0.448
O5 0.000 -0.800 -0.448

Atom - Atom Distances (Å)
  C1 H2 H3 O4 O5
C11.08341.08341.44581.4458
H21.08341.85042.14982.1498
H31.08341.85042.14982.1498
O41.44582.14982.14981.6006
O51.44582.14982.14981.6006

picture of Dioxirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O4 O5 56.390 C1 O5 O4 56.390
H2 C1 H3 117.289 H2 C1 O4 115.681
H2 C1 O5 115.681 H3 C1 O4 115.681
H3 C1 O5 115.681 O4 C1 O5 67.220
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability