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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-188.869637
Energy at 298.15K-188.872410
HF Energy-188.493613
Nuclear repulsion energy68.985715
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
4/u)
Dep P Dep U
1 A1 3160 3002 9.42      
2 A1 1589 1510 0.91      
3 A1 1115 1059 6.64      
4 A1 687 652 1.51      
5 A2 996 946 0.00      
6 B1 3280 3116 29.79      
7 B1 1161 1103 5.78      
8 B2 1283 1219 0.47      
9 B2 863 820 27.83      

Unscaled Zero Point Vibrational Energy (zpe) 7066.4 cm-1
Scaled (by 0.9501) Zero Point Vibrational Energy (zpe) 6713.8 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/6-31G
ABC
0.89906 0.71766 0.43495

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 0.765
H2 0.929 0.000 1.329
H3 -0.929 0.000 1.329
O4 0.000 0.825 -0.453
O5 0.000 -0.825 -0.453

Atom - Atom Distances (Å)
  C1 H2 H3 O4 O5
C11.08721.08721.47121.4712
H21.08721.85892.17292.1729
H31.08721.85892.17292.1729
O41.47122.17292.17291.6491
O51.47122.17292.17291.6491

picture of Dioxirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O4 O5 55.914 C1 O5 O4 55.914
H2 C1 H3 117.490 H2 C1 O4 115.449
H2 C1 O5 115.449 H3 C1 O4 115.449
H3 C1 O5 115.449 O4 C1 O5 68.173
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability