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

using model chemistry: CCSD=FULL/6-31G(2df,p)

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=FULL/6-31G(2df,p)
 hartrees
Energy at 0K-189.209114
Energy at 298.15K-189.211723
HF Energy-188.570389
Nuclear repulsion energy70.519820
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=FULL/6-31G(2df,p)
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3351 3155 0.56      
2 A' 3198 3011 5.80      
3 A' 1568 1477 37.30      
4 A' 1420 1337 18.59      
5 A' 1269 1195 17.13      
6 A' 931 877 117.74      
7 A' 543 511 0.12      
8 A" 957 901 29.65      
9 A" 687 647 2.50      

Unscaled Zero Point Vibrational Energy (zpe) 6962.2 cm-1
Scaled (by 0.9416) Zero Point Vibrational Energy (zpe) 6555.6 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 CCSD=FULL/6-31G(2df,p)
ABC
2.65598 0.42348 0.36524

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD=FULL/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.465 0.000
C2 1.057 -0.205 0.000
H3 0.991 -1.285 0.000
H4 1.974 0.366 0.000
O5 -1.164 -0.196 0.000

Atom - Atom Distances (Å)
  O1 C2 H3 H4 O5
O11.25172.01051.97621.3382
C21.25171.08171.07952.2209
H32.01051.08171.92102.4135
H41.97621.07951.92103.1872
O51.33822.22092.41353.1872

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 118.815 O1 C2 H4 115.729
C2 O1 O5 118.044 H3 C2 H4 125.455
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability