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

using model chemistry: CCSD(T)=FULL/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at CCSD(T)=FULL/aug-cc-pVTZ
 hartrees
Energy at 0K-189.379490
Energy at 298.15K-189.382055
HF Energy-188.631093
Nuclear repulsion energy69.974244
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 CCSD(T)=FULL/aug-cc-pVTZ
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' 3280 3161        
2 A' 3157 3042        
3 A' 1497 1443        
4 A' 1320 1272        
5 A' 1241 1196        
6 A' 942 908        
7 A' 536 517        
8 A" 874 842        
9 A" 647 624        

Unscaled Zero Point Vibrational Energy (zpe) 6746.7 cm-1
Scaled (by 0.9637) Zero Point Vibrational Energy (zpe) 6501.8 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 CCSD(T)=FULL/aug-cc-pVTZ
ABC
2.61235 0.41671 0.35938

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)=FULL/aug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.469 0.000
C2 1.068 -0.218 0.000
H3 0.996 -1.296 0.000
H4 1.979 0.358 0.000
O5 -1.173 -0.188 0.000

Atom - Atom Distances (Å)
  O1 C2 H3 H4 O5
O11.27012.02671.98181.3441
C21.27011.08021.07762.2412
H32.02671.08021.92382.4360
H41.98181.07761.92383.1985
O51.34412.24122.43603.1985

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 118.938 O1 C2 H4 114.921
C2 O1 O5 118.010 H3 C2 H4 126.141
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability