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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-188.875584
Energy at 298.15K-188.878294
HF Energy-188.494418
Nuclear repulsion energy69.169738
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
4/u)
Dep P Dep U
1 A1 3113 3000 9.84      
2 A1 1575 1517 1.41      
3 A1 1127 1086 13.20      
4 A1 632 609 0.69      
5 A2 1003 966 0.00      
6 B1 3217 3100 30.94      
7 B1 1155 1113 6.84      
8 B2 1251 1206 4.32      
9 B2 758 731 7.86      

Unscaled Zero Point Vibrational Energy (zpe) 6914.9 cm-1
Scaled (by 0.9636) Zero Point Vibrational Energy (zpe) 6663.2 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/6-31G
ABC
0.90865 0.71818 0.43745

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 0.759
H2 0.930 0.000 1.329
H3 -0.930 0.000 1.329
O4 0.000 0.824 -0.451
O5 0.000 -0.824 -0.451

Atom - Atom Distances (Å)
  C1 H2 H3 O4 O5
C11.09111.09111.46331.4633
H21.09111.86072.17042.1704
H31.09111.86072.17042.1704
O41.46332.17042.17041.6483
O51.46332.17042.17041.6483

picture of Dioxirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O4 O5 55.722 C1 O5 O4 55.722
H2 C1 H3 116.998 H2 C1 O4 115.579
H2 C1 O5 115.579 H3 C1 O4 115.579
H3 C1 O5 115.579 O4 C1 O5 68.556
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability