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

using model chemistry: CCSD/aug-cc-pVTZ

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/aug-cc-pVTZ
 hartrees
Energy at 0K-189.296843
Energy at 298.15K-189.299431
HF Energy-188.635256
Nuclear repulsion energy70.080814
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/aug-cc-pVTZ
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' 3304 3158 0.99      
2 A' 3154 3015 4.19      
3 A' 1582 1512 37.26      
4 A' 1420 1357 15.35      
5 A' 1253 1197 16.24      
6 A' 863 825 130.59      
7 A' 525 502 0.10      
8 A" 1002 957 24.83      
9 A" 674 644 2.76      

Unscaled Zero Point Vibrational Energy (zpe) 6888.7 cm-1
Scaled (by 0.9558) Zero Point Vibrational Energy (zpe) 6584.2 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 CCSD/aug-cc-pVTZ
ABC
2.60276 0.41909 0.36097

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD/aug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.472 0.000
C2 1.062 -0.184 0.000
H3 1.010 -1.265 0.000
H4 1.971 0.400 0.000
O5 -1.169 -0.226 0.000

Atom - Atom Distances (Å)
  O1 C2 H3 H4 O5
O11.24832.00921.97241.3615
C21.24831.08261.08032.2319
H32.00921.08261.92292.4144
H41.97241.08031.92293.2021
O51.36152.23192.41443.2021

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 118.910 O1 C2 H4 115.596
C2 O1 O5 117.504 H3 C2 H4 125.494
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability