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All results from a given calculation for CH2O2 (Dioxirane)

using model chemistry: CCD/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at CCD/6-31G(2df,p)
 hartrees
Energy at 0K-189.231725
Energy at 298.15K-189.234624
HF Energy-188.623063
Nuclear repulsion energy73.826706
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 CCD/6-31G(2df,p)
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 3136 2971 23.90      
2 A1 1588 1504 4.73      
3 A1 1361 1289 36.60      
4 A1 836 792 1.64      
5 A2 1063 1007 0.00      
6 B1 3234 3064 25.46      
7 B1 1213 1149 8.70      
8 B2 1307 1238 1.32      
9 B2 980 928 21.95      

Unscaled Zero Point Vibrational Energy (zpe) 7358.8 cm-1
Scaled (by 0.9472) Zero Point Vibrational Energy (zpe) 6970.3 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 CCD/6-31G(2df,p)
ABC
0.96881 0.87161 0.50638

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/6-31G(2df,p)

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.727
H2 0.925 0.000 1.300
H3 -0.925 0.000 1.300
O4 0.000 0.742 -0.435
O5 0.000 -0.742 -0.435

Atom - Atom Distances (Å)
  C1 H2 H3 O4 O5
C11.08821.08821.37931.3793
H21.08821.85032.10222.1022
H31.08821.85032.10222.1022
O41.37932.10222.10221.4841
O51.37932.10222.10221.4841

picture of Dioxirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O4 O5 57.453 C1 O5 O4 57.453
H2 C1 H3 116.461 H2 C1 O4 116.347
H2 C1 O5 116.347 H3 C1 O4 116.347
H3 C1 O5 116.347 O4 C1 O5 65.094
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability