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

using model chemistry: CCD/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at CCD/3-21G
 hartrees
Energy at 0K-187.854496
Energy at 298.15K-187.856880
HF Energy-187.521687
Nuclear repulsion energy66.575094
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 CCD/3-21G
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' 3248 3158 4.44      
2 A' 3120 3034 1.99      
3 A' 1589 1545 1.85      
4 A' 1471 1430 2.96      
5 A' 1233 1199 6.40      
6 A' 621 604 16.96      
7 A' 413 402 0.98      
8 A" 1090 1060 28.53      
9 A" 635 617 0.03      

Unscaled Zero Point Vibrational Energy (zpe) 6710.1 cm-1
Scaled (by 0.9723) Zero Point Vibrational Energy (zpe) 6524.3 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 CCD/3-21G
ABC
2.23767 0.38032 0.32507

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.531 0.000
C2 1.101 -0.087 0.000
H3 1.102 -1.174 0.000
H4 2.023 0.489 0.000
O5 -1.216 -0.380 0.000

Atom - Atom Distances (Å)
  O1 C2 H3 H4 O5
O11.26252.03052.02321.5193
C21.26251.08691.08772.3350
H32.03051.08691.90152.4506
H42.02321.08771.90153.3535
O51.51932.33502.45063.3535

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 119.412 O1 C2 H4 118.643
C2 O1 O5 113.837 H3 C2 H4 121.945
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability