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All results from a given calculation for CH2O2 (Dioxirane)

using model chemistry: MP2=FULL/cc-pVDZ

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/cc-pVDZ
 hartrees
Energy at 0K-189.136522
Energy at 298.15K-189.139386
HF Energy-188.615367
Nuclear repulsion energy72.812248
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/cc-pVDZ
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 3131 2975 31.71      
2 A1 1561 1484 5.74      
3 A1 1310 1245 32.24      
4 A1 774 735 1.96      
5 A2 1029 978 0.00      
6 B1 3237 3077 41.26      
7 B1 1190 1131 10.35      
8 B2 1285 1221 0.06      
9 B2 959 911 25.30      

Unscaled Zero Point Vibrational Energy (zpe) 7237.3 cm-1
Scaled (by 0.9504) Zero Point Vibrational Energy (zpe) 6878.3 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=FULL/cc-pVDZ
ABC
0.96174 0.83157 0.49140

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.728
H2 0.931 0.000 1.310
H3 -0.931 0.000 1.310
O4 0.000 0.761 -0.437
O5 0.000 -0.761 -0.437

Atom - Atom Distances (Å)
  C1 H2 H3 O4 O5
C11.09801.09801.39151.3915
H21.09801.86222.12082.1208
H31.09801.86222.12082.1208
O41.39152.12082.12081.5219
O51.39152.12082.12081.5219

picture of Dioxirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O4 O5 56.849 C1 O5 O4 56.849
H2 C1 H3 115.999 H2 C1 O4 116.338
H2 C1 O5 116.338 H3 C1 O4 116.338
H3 C1 O5 116.338 O4 C1 O5 66.303
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability