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All results from a given calculation for CH2O2 (Dioxirane)

using model chemistry: MP2=FULL/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 MP2=FULL/6-31G(2df,p)
 hartrees
Energy at 0K-189.246581
Energy at 298.15K-189.249455
HF Energy-188.621160
Nuclear repulsion energy73.286703
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=FULL/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 3143 2955 25.08      
2 A1 1574 1479 2.80      
3 A1 1317 1237 31.12      
4 A1 789 742 1.68      
5 A2 1043 980 0.00      
6 B1 3249 3054 25.58      
7 B1 1204 1132 7.21      
8 B2 1288 1211 0.84      
9 B2 968 910 22.68      

Unscaled Zero Point Vibrational Energy (zpe) 7287.3 cm-1
Scaled (by 0.9399) Zero Point Vibrational Energy (zpe) 6849.3 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 MP2=FULL/6-31G(2df,p)
ABC
0.97057 0.84555 0.49783

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G(2df,p)

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.726
H2 0.923 0.000 1.300
H3 -0.923 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
C11.08741.08741.37771.3777
H21.08741.84652.10092.1009
H31.08741.84652.10092.1009
O41.37772.10092.10091.4848
O51.37772.10092.10091.4848

picture of Dioxirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O4 O5 57.392 C1 O5 O4 57.392
H2 C1 H3 116.214 H2 C1 O4 116.427
H2 C1 O5 116.427 H3 C1 O4 116.427
H3 C1 O5 116.427 O4 C1 O5 65.216
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability