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

using model chemistry: CCD/6-311+G(3df,2p)

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/6-311+G(3df,2p)
 hartrees
Energy at 0K-189.267549
Energy at 298.15K-189.270160
HF Energy-188.629527
Nuclear repulsion energy70.813465
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/6-311+G(3df,2p)
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' 3314 3125 1.06      
2 A' 3160 2980 5.07      
3 A' 1625 1532 46.07      
4 A' 1446 1364 12.80      
5 A' 1270 1198 25.69      
6 A' 849 801 257.60      
7 A' 529 498 5.45      
8 A" 1032 973 26.88      
9 A" 716 675 2.26      

Unscaled Zero Point Vibrational Energy (zpe) 6969.8 cm-1
Scaled (by 0.9431) Zero Point Vibrational Energy (zpe) 6573.2 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/6-311+G(3df,2p)
ABC
2.70177 0.42593 0.36793

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/6-311+G(3df,2p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.460 0.000
C2 1.053 -0.190 0.000
H3 0.999 -1.271 0.000
H4 1.964 0.392 0.000
O5 -1.160 -0.208 0.000

Atom - Atom Distances (Å)
  O1 C2 H3 H4 O5
O11.23731.99891.96481.3385
C21.23731.08311.08052.2135
H31.99891.08311.92292.4074
H41.96481.08051.92293.1809
O51.33852.21352.40743.1809

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 118.814 O1 C2 H4 115.756
C2 O1 O5 118.432 H3 C2 H4 125.430
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability