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All results from a given calculation for CH2O2 (Dioxirane)

using model chemistry: MP2/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP2/6-311G**
 hartrees
Energy at 0K-189.198064
Energy at 298.15K-189.200934
HF Energy-188.651130
Nuclear repulsion energy73.127468
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 MP2/6-311G**
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 3130 2974 30.66      
2 A1 1582 1503 3.46      
3 A1 1316 1250 34.49      
4 A1 772 733 1.37      
5 A2 1046 994 0.00      
6 B1 3234 3073 34.95      
7 B1 1207 1147 11.47      
8 B2 1296 1232 0.17      
9 B2 958 910 26.67      

Unscaled Zero Point Vibrational Energy (zpe) 7270.4 cm-1
Scaled (by 0.9502) Zero Point Vibrational Energy (zpe) 6908.3 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 MP2/6-311G**
ABC
0.96817 0.84029 0.49570

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-311G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.728
H2 0.927 0.000 1.298
H3 -0.927 0.000 1.298
O4 0.000 0.757 -0.435
O5 0.000 -0.757 -0.435

Atom - Atom Distances (Å)
  C1 H2 H3 O4 O5
C11.08871.08871.38801.3880
H21.08871.85452.10692.1069
H31.08871.85452.10692.1069
O41.38802.10692.10691.5139
O51.38802.10692.10691.5139

picture of Dioxirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O4 O5 56.952 C1 O5 O4 56.952
H2 C1 H3 116.805 H2 C1 O4 116.052
H2 C1 O5 116.052 H3 C1 O4 116.052
H3 C1 O5 116.052 O4 C1 O5 66.097
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability