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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-189.238071
Energy at 298.15K-189.240938
HF Energy-188.647429
Nuclear repulsion energy73.203601
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 3135 2969 31.24      
2 A1 1590 1506 3.13      
3 A1 1317 1248 35.59      
4 A1 775 734 1.35      
5 A2 1046 991 0.00      
6 B1 3245 3073 34.99      
7 B1 1210 1146 9.57      
8 B2 1290 1222 0.43      
9 B2 958 908 28.14      

Unscaled Zero Point Vibrational Energy (zpe) 7283.4 cm-1
Scaled (by 0.9471) Zero Point Vibrational Energy (zpe) 6898.1 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
0.96930 0.84268 0.49696

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 0.728
H2 0.928 0.000 1.296
H3 -0.928 0.000 1.296
O4 0.000 0.756 -0.435
O5 0.000 -0.756 -0.435

Atom - Atom Distances (Å)
  C1 H2 H3 O4 O5
C11.08811.08811.38701.3870
H21.08811.85692.10422.1042
H31.08811.85692.10422.1042
O41.38702.10422.10421.5113
O51.38702.10422.10421.5113

picture of Dioxirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O4 O5 56.988 C1 O5 O4 56.988
H2 C1 H3 117.136 H2 C1 O4 115.931
H2 C1 O5 115.931 H3 C1 O4 115.931
H3 C1 O5 115.931 O4 C1 O5 66.025
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability