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

using model chemistry: CCSD=FULL/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 CCSD=FULL/6-311+G(3df,2p)
 hartrees
Energy at 0K-189.348852
Energy at 298.15K-189.351459
HF Energy-188.629212
Nuclear repulsion energy70.498854
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/6-311+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' 3323 3323 1.09      
2 A' 3171 3171 4.65      
3 A' 1594 1594 41.95      
4 A' 1430 1430 16.28      
5 A' 1264 1264 18.21      
6 A' 896 896 138.49      
7 A' 534 534 0.10      
8 A" 1001 1001 26.61      
9 A" 686 686 2.79      

Unscaled Zero Point Vibrational Energy (zpe) 6949.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 6949.7 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/6-311+G(3df,2p)
ABC
2.66481 0.42262 0.36477

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.464 0.000
C2 1.058 -0.190 0.000
H3 1.006 -1.270 0.000
H4 1.967 0.391 0.000
O5 -1.165 -0.212 0.000

Atom - Atom Distances (Å)
  O1 C2 H3 H4 O5
O11.24372.00511.96811.3466
C21.24371.08141.07882.2226
H32.00511.08141.91892.4151
H41.96811.07881.91893.1889
O51.34662.22262.41513.1889

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 119.002 O1 C2 H4 115.677
C2 O1 O5 118.134 H3 C2 H4 125.321
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability