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

using model chemistry: MP2=FULL/6-31G

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=FULL/6-31G
 hartrees
Energy at 0K-188.823223
Energy at 298.15K-188.825586
HF Energy-188.480249
Nuclear repulsion energy67.073949
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=FULL/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 A' 3336 3170 1.07      
2 A' 3176 3018 1.52      
3 A' 1532 1455 6.05      
4 A' 1377 1308 25.91      
5 A' 1242 1180 10.58      
6 A' 589 560 111.23      
7 A' 409 388 45.82      
8 A" 1040 988 40.60      
9 A" 670 636 0.38      

Unscaled Zero Point Vibrational Energy (zpe) 6684.9 cm-1
Scaled (by 0.9501) Zero Point Vibrational Energy (zpe) 6351.3 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 MP2=FULL/6-31G
ABC
2.37901 0.38209 0.32921

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.503 0.000
C2 1.111 -0.143 0.000
H3 1.085 -1.230 0.000
H4 2.019 0.451 0.000
O5 -1.222 -0.298 0.000

Atom - Atom Distances (Å)
  O1 C2 H3 H4 O5
O11.28542.04452.01971.4607
C21.28541.08731.08482.3380
H32.04451.08731.92302.4877
H42.01971.08481.92303.3261
O51.46072.33802.48773.3261

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 118.776 O1 C2 H4 116.640
C2 O1 O5 116.585 H3 C2 H4 124.584
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability