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All results from a given calculation for CH2O2 (Dioxirane)

using model chemistry: MP2=FULL/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=FULL/6-311G**
 hartrees
Energy at 0K-189.254150
Energy at 298.15K-189.257022
HF Energy-188.651382
Nuclear repulsion energy73.194294
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=FULL/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 3136 2975 30.58      
2 A1 1583 1501 3.43      
3 A1 1320 1252 34.61      
4 A1 774 734 1.36      
5 A2 1049 995 0.00      
6 B1 3240 3074 34.63      
7 B1 1209 1147 11.44      
8 B2 1298 1231 0.18      
9 B2 961 912 26.64      

Unscaled Zero Point Vibrational Energy (zpe) 7284.4 cm-1
Scaled (by 0.9486) Zero Point Vibrational Energy (zpe) 6909.9 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=FULL/6-311G**
ABC
0.96991 0.84184 0.49665

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.727
H2 0.927 0.000 1.298
H3 -0.927 0.000 1.298
O4 0.000 0.756 -0.435
O5 0.000 -0.756 -0.435

Atom - Atom Distances (Å)
  C1 H2 H3 O4 O5
C11.08831.08831.38661.3866
H21.08831.85362.10552.1055
H31.08831.85362.10552.1055
O41.38662.10552.10551.5124
O51.38662.10552.10551.5124

picture of Dioxirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O4 O5 56.949 C1 O5 O4 56.949
H2 C1 H3 116.771 H2 C1 O4 116.064
H2 C1 O5 116.064 H3 C1 O4 116.064
H3 C1 O5 116.064 O4 C1 O5 66.102
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability