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All results from a given calculation for CH2O2 (Dioxirane)

using model chemistry: MP2/aug-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/aug-cc-pVDZ
 hartrees
Energy at 0K-189.176840
Energy at 298.15K-189.179683
HF Energy-188.628471
Nuclear repulsion energy72.193441
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/aug-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 3126 2998 31.21      
2 A1 1533 1471 1.03      
3 A1 1262 1211 35.74      
4 A1 752 721 1.09      
5 A2 1020 978 0.00      
6 B1 3242 3109 18.59      
7 B1 1165 1117 6.57      
8 B2 1274 1222 0.69      
9 B2 928 890 31.69      

Unscaled Zero Point Vibrational Energy (zpe) 7151.2 cm-1
Scaled (by 0.959) Zero Point Vibrational Energy (zpe) 6858.0 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 MP2/aug-cc-pVDZ
ABC
0.95078 0.81294 0.48269

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.736
H2 0.937 0.000 1.305
H3 -0.937 0.000 1.305
O4 0.000 0.770 -0.439
O5 0.000 -0.770 -0.439

Atom - Atom Distances (Å)
  C1 H2 H3 O4 O5
C11.09631.09631.40511.4051
H21.09631.87492.12422.1242
H31.09631.87492.12422.1242
O41.40512.12422.12421.5399
O51.40512.12422.12421.5399

picture of Dioxirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O4 O5 56.772 C1 O5 O4 56.772
H2 C1 H3 117.546 H2 C1 O4 115.700
H2 C1 O5 115.700 H3 C1 O4 115.700
H3 C1 O5 115.700 O4 C1 O5 66.457
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability