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All results from a given calculation for CH2O2 (Dioxirane)

using model chemistry: QCISD/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 QCISD/aug-cc-pVTZ
 hartrees
Energy at 0K-189.345129
Energy at 298.15K-189.348006
HF Energy-188.681622
Nuclear repulsion energy73.479795
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/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 3108 2991 31.07      
2 A1 1572 1513 2.59      
3 A1 1328 1278 43.99      
4 A1 806 776 1.12      
5 A2 1051 1012 0.00      
6 B1 3204 3083 19.00      
7 B1 1191 1146 7.72      
8 B2 1291 1242 3.11      
9 B2 930 895 25.17      

Unscaled Zero Point Vibrational Energy (zpe) 7240.5 cm-1
Scaled (by 0.9624) Zero Point Vibrational Energy (zpe) 6968.2 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 QCISD/aug-cc-pVTZ
ABC
0.96765 0.85667 0.50103

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.727
H2 0.924 0.000 1.300
H3 -0.924 0.000 1.300
O4 0.000 0.740 -0.435
O5 0.000 -0.740 -0.435

Atom - Atom Distances (Å)
  C1 H2 H3 O4 O5
C11.08691.08691.37781.3778
H21.08691.84742.10022.1002
H31.08691.84742.10022.1002
O41.37782.10022.10021.4793
O51.37782.10022.10021.4793

picture of Dioxirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O4 O5 57.530 C1 O5 O4 57.530
H2 C1 H3 116.397 H2 C1 O4 116.397
H2 C1 O5 116.397 H3 C1 O4 116.397
H3 C1 O5 116.397 O4 C1 O5 64.940
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability