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All results from a given calculation for CH2O2 (Dioxirane)

using model chemistry: MP4/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP4/6-31G*
 hartrees
Energy at 0K-189.129812
Energy at 298.15K-189.132637
HF Energy-188.597679
Nuclear repulsion energy72.169830
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 MP4/6-31G*
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 3091 2951        
2 A1 1588 1516        
3 A1 1280 1222        
4 A1 729 696        
5 A2 1020 974        
6 B1 3187 3043        
7 B1 1197 1143        
8 B2 1267 1210        
9 B2 921 880        

Unscaled Zero Point Vibrational Energy (zpe) 7139.6 cm-1
Scaled (by 0.9548) Zero Point Vibrational Energy (zpe) 6816.9 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 MP4/6-31G*
ABC
0.95840 0.80677 0.48156

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/6-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.731
H2 0.929 0.000 1.310
H3 -0.929 0.000 1.310
O4 0.000 0.774 -0.438
O5 0.000 -0.774 -0.438

Atom - Atom Distances (Å)
  C1 H2 H3 O4 O5
C11.09481.09481.40141.4014
H21.09481.85772.12532.1253
H31.09481.85772.12532.1253
O41.40142.12532.12531.5477
O51.40142.12532.12531.5477

picture of Dioxirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O4 O5 56.484 C1 O5 O4 56.484
H2 C1 H3 116.076 H2 C1 O4 116.189
H2 C1 O5 116.189 H3 C1 O4 116.189
H3 C1 O5 116.189 O4 C1 O5 67.033
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability