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All results from a given calculation for H2COO (Dioxymethyl radical)

using model chemistry: MP3/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at MP3/cc-pVDZ
 hartrees
Energy at 0K-189.078864
Energy at 298.15K-189.081457
HF Energy-188.565190
Nuclear repulsion energy70.697800
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 MP3/cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3365 3189 0.50      
2 A' 3201 3034 13.00      
3 A' 1574 1492 63.52      
4 A' 1416 1342 36.77      
5 A' 1257 1191 39.25      
6 A' 830 787 439.10      
7 A' 544 516 15.15      
8 A" 938 889 38.25      
9 A" 713 676 2.16      

Unscaled Zero Point Vibrational Energy (zpe) 6918.4 cm-1
Scaled (by 0.9479) Zero Point Vibrational Energy (zpe) 6558.0 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 MP3/cc-pVDZ
ABC
2.71715 0.42341 0.36632

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.455 0.000
C2 1.057 -0.223 0.000
H3 0.981 -1.314 0.000
H4 1.985 0.352 0.000
O5 -1.163 -0.168 0.000

Atom - Atom Distances (Å)
  O1 C2 H3 H4 O5
O11.25582.02281.98741.3199
C21.25581.09401.09092.2212
H32.02281.09401.94472.4312
H41.98741.09091.94473.1907
O51.31992.22122.43123.1907

picture of Dioxymethyl radical state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 H3 118.667 O1 C2 H4 115.567
C2 O1 O5 119.154 H3 C2 H4 125.766
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability