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All results from a given calculation for CH2O2 (Dioxirane)

using model chemistry: QCISD(T)/6-31+G**

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(T)/6-31+G**
 hartrees
Energy at 0K-189.139684
Energy at 298.15K-189.142507
HF Energy-188.605794
Nuclear repulsion energy72.208520
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(T)/6-31+G**
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 3134 2943        
2 A1 1587 1490        
3 A1 1280 1202        
4 A1 708 665        
5 A2 1038 974        
6 B1 3235 3037        
7 B1 1192 1119        
8 B2 1284 1206        
9 B2 908 852        

Unscaled Zero Point Vibrational Energy (zpe) 7182.3 cm-1
Scaled (by 0.939) Zero Point Vibrational Energy (zpe) 6744.2 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(T)/6-31+G**
ABC
0.96211 0.80543 0.48170

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.731
H2 0.926 0.000 1.302
H3 -0.926 0.000 1.302
O4 0.000 0.775 -0.437
O5 0.000 -0.775 -0.437

Atom - Atom Distances (Å)
  C1 H2 H3 O4 O5
C11.08801.08801.40151.4015
H21.08801.85172.11732.1173
H31.08801.85172.11732.1173
O41.40152.11732.11731.5495
O51.40152.11732.11731.5495

picture of Dioxirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O4 O5 56.441 C1 O5 O4 56.441
H2 C1 H3 116.632 H2 C1 O4 115.956
H2 C1 O5 115.956 H3 C1 O4 115.956
H3 C1 O5 115.956 O4 C1 O5 67.118
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability