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All results from a given calculation for CH2O2 (Dioxirane)

using model chemistry: CCSD=FULL/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=FULL/aug-cc-pVTZ
 hartrees
Energy at 0K-189.390653
Energy at 298.15K-189.393544
HF Energy-188.682689
Nuclear repulsion energy73.836222
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=FULL/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 3132 2978 30.27      
2 A1 1593 1515 2.57      
3 A1 1346 1280 44.54      
4 A1 817 777 1.11      
5 A2 1070 1017 0.00      
6 B1 3206 3049 18.28      
7 B1 1205 1146 7.91      
8 B2 1306 1242 2.93      
9 B2 947 901 25.52      

Unscaled Zero Point Vibrational Energy (zpe) 7310.4 cm-1
Scaled (by 0.951) Zero Point Vibrational Energy (zpe) 6952.2 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=FULL/aug-cc-pVTZ
ABC
0.97555 0.86625 0.50608

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.725
H2 0.921 0.000 1.294
H3 -0.921 0.000 1.294
O4 0.000 0.737 -0.433
O5 0.000 -0.737 -0.433

Atom - Atom Distances (Å)
  C1 H2 H3 O4 O5
C11.08291.08291.37281.3728
H21.08291.84222.09202.0920
H31.08291.84222.09202.0920
O41.37282.09202.09201.4747
O51.37282.09202.09201.4747

picture of Dioxirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O4 O5 57.513 C1 O5 O4 57.513
H2 C1 H3 116.538 H2 C1 O4 116.336
H2 C1 O5 116.336 H3 C1 O4 116.336
H3 C1 O5 116.336 O4 C1 O5 64.973
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability