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All results from a given calculation for CH2O2 (Dioxirane)

using model chemistry: QCISD/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at QCISD/6-31+G**
 hartrees
Energy at 0K-189.139932
Energy at 298.15K-189.142787
HF Energy-188.608352
Nuclear repulsion energy72.739526
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 QCISD/6-31+G**
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 3160 2987 30.03      
2 A1 1599 1511 7.59      
3 A1 1314 1243 40.21      
4 A1 766 724 1.05      
5 A2 1048 990 0.00      
6 B1 3261 3082 27.28      
7 B1 1203 1137 8.31      
8 B2 1294 1223 1.20      
9 B2 923 872 23.31      

Unscaled Zero Point Vibrational Energy (zpe) 7282.6 cm-1
Scaled (by 0.9454) Zero Point Vibrational Energy (zpe) 6885.0 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 QCISD/6-31+G**
ABC
0.96147 0.82862 0.48963

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.732
H2 0.925 0.000 1.301
H3 -0.925 0.000 1.301
O4 0.000 0.763 -0.437
O5 0.000 -0.763 -0.437

Atom - Atom Distances (Å)
  C1 H2 H3 O4 O5
C11.08601.08601.39601.3960
H21.08601.84972.11162.1116
H31.08601.84972.11162.1116
O41.39602.11162.11161.5259
O51.39602.11162.11161.5259

picture of Dioxirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O4 O5 56.871 C1 O5 O4 56.871
H2 C1 H3 116.781 H2 C1 O4 116.035
H2 C1 O5 116.035 H3 C1 O4 116.035
H3 C1 O5 116.035 O4 C1 O5 66.257
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability