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

using model chemistry: MP2/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 MP2/cc-pVTZ
 hartrees
Energy at 0K-189.268510
Energy at 298.15K-189.271097
HF Energy-188.618206
Nuclear repulsion energy70.939130
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/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' 3369 3198 1.78      
2 A' 3188 3027 15.51      
3 A' 1482 1407 1.86      
4 A' 1302 1236 32.72      
5 A' 1186 1126 261.51      
6 A' 1092 1037 700.68      
7 A' 558 530 10.09      
8 A" 796 756 33.32      
9 A" 672 638 31.10      

Unscaled Zero Point Vibrational Energy (zpe) 6822.1 cm-1
Scaled (by 0.9495) Zero Point Vibrational Energy (zpe) 6477.6 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/cc-pVTZ
ABC
2.79780 0.42167 0.36644

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.446 0.000
C2 1.062 -0.285 0.000
H3 0.941 -1.357 0.000
H4 1.979 0.277 0.000
O5 -1.162 -0.097 0.000

Atom - Atom Distances (Å)
  O1 C2 H3 H4 O5
O11.28962.03381.98581.2821
C21.28961.07901.07472.2322
H32.03381.07901.93572.4516
H41.98581.07471.93573.1625
O51.28212.23222.45163.1625

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 118.052 O1 C2 H4 113.953
C2 O1 O5 120.453 H3 C2 H4 127.995
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability