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All results from a given calculation for CH2O2 (Dioxirane)

using model chemistry: QCISD/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 QCISD/6-31G*
 hartrees
Energy at 0K-189.111746
Energy at 298.15K-189.114601
HF Energy-188.600587
Nuclear repulsion energy72.772026
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/6-31G*
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 3115 2966 27.90      
2 A1 1599 1523 7.06      
3 A1 1324 1260 35.77      
4 A1 781 743 1.71      
5 A2 1038 988 0.00      
6 B1 3208 3055 40.52      
7 B1 1208 1150 8.50      
8 B2 1278 1217 1.67      
9 B2 932 888 17.79      

Unscaled Zero Point Vibrational Energy (zpe) 7240.7 cm-1
Scaled (by 0.9523) Zero Point Vibrational Energy (zpe) 6895.3 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 QCISD/6-31G*
ABC
0.95939 0.83183 0.49050

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.730
H2 0.927 0.000 1.310
H3 -0.927 0.000 1.310
O4 0.000 0.747 -0.437
O5 0.000 -0.747 -0.437

Atom - Atom Distances (Å)
  C1 H2 H3 O4 O5
C11.09361.09361.38611.3861
H21.09361.85402.11472.1147
H31.09361.85402.11472.1147
O41.38612.11472.11471.4946
O51.38612.11472.11471.4946

picture of Dioxirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O4 O5 57.374 C1 O5 O4 57.374
H2 C1 H3 115.918 H2 C1 O4 116.539
H2 C1 O5 116.539 H3 C1 O4 116.539
H3 C1 O5 116.539 O4 C1 O5 65.252
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability