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All results from a given calculation for CH2O2 (Dioxirane)

using model chemistry: CCSD/aug-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 CCSD/aug-cc-pVTZ
 hartrees
Energy at 0K-189.343075
Energy at 298.15K-189.345959
HF Energy-188.681907
Nuclear repulsion energy73.565205
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 CCSD/aug-cc-pVTZ
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 3112 2974 30.16      
2 A1 1575 1506 2.68      
3 A1 1337 1278 43.96      
4 A1 812 776 1.11      
5 A2 1057 1010 0.00      
6 B1 3207 3066 18.52      
7 B1 1194 1141 7.86      
8 B2 1295 1238 3.00      
9 B2 941 899 25.19      

Unscaled Zero Point Vibrational Energy (zpe) 7264.7 cm-1
Scaled (by 0.9558) Zero Point Vibrational Energy (zpe) 6943.6 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 CCSD/aug-cc-pVTZ
ABC
0.96887 0.85952 0.50229

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.727
H2 0.923 0.000 1.299
H3 -0.923 0.000 1.299
O4 0.000 0.739 -0.435
O5 0.000 -0.739 -0.435

Atom - Atom Distances (Å)
  C1 H2 H3 O4 O5
C11.08661.08661.37691.3769
H21.08661.84692.09932.0993
H31.08661.84692.09932.0993
O41.37692.09932.09931.4780
O51.37692.09932.09931.4780

picture of Dioxirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O4 O5 57.540 C1 O5 O4 57.540
H2 C1 H3 116.394 H2 C1 O4 116.402
H2 C1 O5 116.402 H3 C1 O4 116.402
H3 C1 O5 116.402 O4 C1 O5 64.920
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability