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All results from a given calculation for CH2O2 (Dioxirane)

using model chemistry: MP2=FULL/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 MP2=FULL/6-31G**
 hartrees
Energy at 0K-189.123860
Energy at 298.15K-189.126728
HF Energy-188.603474
Nuclear repulsion energy72.656808
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/6-31G**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1 3167 2959 27.76      
2 A1 1612 1506 6.08      
3 A1 1306 1220 27.82      
4 A1 786 734 2.13      
5 A2 1037 969 0.00      
6 B1 3276 3061 37.81      
7 B1 1211 1131 8.66      
8 B2 1295 1210 0.03      
9 B2 959 896 23.29      

Unscaled Zero Point Vibrational Energy (zpe) 7324.4 cm-1
Scaled (by 0.9344) Zero Point Vibrational Energy (zpe) 6843.9 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/6-31G**
ABC
0.96249 0.82426 0.48805

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.731
H2 0.922 0.000 1.304
H3 -0.922 0.000 1.304
O4 0.000 0.765 -0.437
O5 0.000 -0.765 -0.437

Atom - Atom Distances (Å)
  C1 H2 H3 O4 O5
C11.08531.08531.39641.3964
H21.08531.84362.11332.1133
H31.08531.84362.11332.1133
O41.39642.11332.11331.5307
O51.39642.11332.11331.5307

picture of Dioxirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O4 O5 56.763 C1 O5 O4 56.763
H2 C1 H3 116.285 H2 C1 O4 116.197
H2 C1 O5 116.197 H3 C1 O4 116.197
H3 C1 O5 116.197 O4 C1 O5 66.474
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability