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All results from a given calculation for CH2O2 (Dioxirane)

using model chemistry: CCSD=FULL/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at CCSD=FULL/cc-pVTZ
 hartrees
Energy at 0K-189.369625
Energy at 298.15K-189.372521
HF Energy-188.679642
Nuclear repulsion energy73.873850
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 CCSD=FULL/cc-pVTZ
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 3135 2972 31.74      
2 A1 1598 1515 3.75      
3 A1 1353 1283 42.39      
4 A1 823 781 1.29      
5 A2 1068 1013 0.00      
6 B1 3212 3046 26.11      
7 B1 1215 1152 8.81      
8 B2 1312 1244 2.46      
9 B2 955 905 22.67      

Unscaled Zero Point Vibrational Energy (zpe) 7335.7 cm-1
Scaled (by 0.9481) Zero Point Vibrational Energy (zpe) 6955.0 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 CCSD=FULL/cc-pVTZ
ABC
0.97628 0.86750 0.50637

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.724
H2 0.919 0.000 1.295
H3 -0.919 0.000 1.295
O4 0.000 0.737 -0.433
O5 0.000 -0.737 -0.433

Atom - Atom Distances (Å)
  C1 H2 H3 O4 O5
C11.08181.08181.37251.3725
H21.08181.83762.09192.0919
H31.08181.83762.09192.0919
O41.37252.09192.09191.4747
O51.37252.09192.09191.4747

picture of Dioxirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O4 O5 57.505 C1 O5 O4 57.505
H2 C1 H3 116.282 H2 C1 O4 116.436
H2 C1 O5 116.436 H3 C1 O4 116.436
H3 C1 O5 116.436 O4 C1 O5 64.989
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability