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All results from a given calculation for CH2O2 (Dioxirane)

using model chemistry: MP2=FULL/cc-pVTZ

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-pVTZ
 hartrees
Energy at 0K-189.363541
Energy at 298.15K-189.366423
HF Energy-188.678055
Nuclear repulsion energy73.393185
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-pVTZ
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 3143 2984 30.43      
2 A1 1583 1503 1.98      
3 A1 1311 1245 34.62      
4 A1 805 765 1.44      
5 A2 1047 994 0.00      
6 B1 3233 3069 23.67      
7 B1 1203 1142 7.47      
8 B2 1299 1233 1.00      
9 B2 956 908 26.91      

Unscaled Zero Point Vibrational Energy (zpe) 7289.6 cm-1
Scaled (by 0.9494) Zero Point Vibrational Energy (zpe) 6920.8 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-pVTZ
ABC
0.97103 0.85002 0.49912

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.726
H2 0.919 0.000 1.296
H3 -0.919 0.000 1.296
O4 0.000 0.742 -0.434
O5 0.000 -0.742 -0.434

Atom - Atom Distances (Å)
  C1 H2 H3 O4 O5
C11.08161.08161.37721.3772
H21.08161.83852.09502.0950
H31.08161.83852.09502.0950
O41.37722.09502.09501.4843
O51.37722.09502.09501.4843

picture of Dioxirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O4 O5 57.391 C1 O5 O4 57.391
H2 C1 H3 116.402 H2 C1 O4 116.352
H2 C1 O5 116.352 H3 C1 O4 116.352
H3 C1 O5 116.352 O4 C1 O5 65.217
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability