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All results from a given calculation for CH2O2 (Dioxirane)

using model chemistry: MP2/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP2/6-31G(2df,p)
 hartrees
Energy at 0K-189.225285
Energy at 298.15K-189.228155
HF Energy-188.620709
Nuclear repulsion energy73.156962
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 MP2/6-31G(2df,p)
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 3134 2960 24.87      
2 A1 1570 1483 2.84      
3 A1 1309 1236 30.81      
4 A1 789 746 1.73      
5 A2 1036 978 0.00      
6 B1 3241 3061 25.61      
7 B1 1199 1132 7.24      
8 B2 1287 1216 0.83      
9 B2 962 908 22.69      

Unscaled Zero Point Vibrational Energy (zpe) 7263.4 cm-1
Scaled (by 0.9445) Zero Point Vibrational Energy (zpe) 6860.3 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 MP2/6-31G(2df,p)
ABC
0.96619 0.84334 0.49611

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31G(2df,p)

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.727
H2 0.925 0.000 1.303
H3 -0.925 0.000 1.303
O4 0.000 0.743 -0.436
O5 0.000 -0.743 -0.436

Atom - Atom Distances (Å)
  C1 H2 H3 O4 O5
C11.08921.08921.37981.3798
H21.08921.84962.10442.1044
H31.08921.84962.10442.1044
O41.37982.10442.10441.4859
O51.37982.10442.10441.4859

picture of Dioxirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O4 O5 57.422 C1 O5 O4 57.422
H2 C1 H3 116.225 H2 C1 O4 116.432
H2 C1 O5 116.432 H3 C1 O4 116.432
H3 C1 O5 116.432 O4 C1 O5 65.156
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability