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All results from a given calculation for CH2O2 (Dioxirane)

using model chemistry: MP2=FULL/STO-3G

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/STO-3G
 hartrees
Energy at 0K-186.316806
Energy at 298.15K-186.319644
HF Energy-186.153764
Nuclear repulsion energy71.140540
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/STO-3G
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 3365 2991 1.16      
2 A1 1676 1489 0.27      
3 A1 1394 1239 0.02      
4 A1 1038 923 0.03      
5 A2 1032 917 0.00      
6 B1 3520 3129 4.99      
7 B1 1168 1038 10.31      
8 B2 1248 1109 3.39      
9 B2 993 883 0.56      

Unscaled Zero Point Vibrational Energy (zpe) 7716.7 cm-1
Scaled (by 0.8889) Zero Point Vibrational Energy (zpe) 6859.3 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/STO-3G
ABC
0.86365 0.84300 0.46873

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/STO-3G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.789
H2 0.939 0.000 1.385
H3 -0.939 0.000 1.385
O4 0.000 0.745 -0.469
O5 0.000 -0.745 -0.469

Atom - Atom Distances (Å)
  C1 H2 H3 O4 O5
C11.11201.11201.46231.4623
H21.11201.87732.20802.2080
H31.11201.87732.20802.2080
O41.46232.20802.20801.4895
O51.46232.20802.20801.4895

picture of Dioxirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O4 O5 59.382 C1 O5 O4 59.382
H2 C1 H3 115.159 H2 C1 O4 117.476
H2 C1 O5 117.476 H3 C1 O4 117.476
H3 C1 O5 117.476 O4 C1 O5 61.235
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability