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

using model chemistry: QCISD(T)=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 QCISD(T)=FULL/6-31G*
 hartrees
Energy at 0K-189.094720
Energy at 298.15K-189.097231
HF Energy-188.546915
Nuclear repulsion energy69.126158
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 QCISD(T)=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' 3329 3329        
2 A' 3174 3174        
3 A' 1503 1503        
4 A' 1336 1336        
5 A' 1239 1239        
6 A' 905 905        
7 A' 532 532        
8 A" 820 820        
9 A" 631 631        

Unscaled Zero Point Vibrational Energy (zpe) 6734.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 6734.4 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 QCISD(T)=FULL/6-31G*
ABC
2.54937 0.40643 0.35055

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)=FULL/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.476 0.000
C2 1.082 -0.218 0.000
H3 1.010 -1.302 0.000
H4 1.999 0.361 0.000
O5 -1.188 -0.195 0.000

Atom - Atom Distances (Å)
  O1 C2 H3 H4 O5
O11.28502.04462.00251.3639
C21.28501.08681.08472.2698
H32.04461.08681.93532.4608
H42.00251.08471.93533.2351
O51.36392.26982.46083.2351

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 118.852 O1 C2 H4 115.089
C2 O1 O5 117.903 H3 C2 H4 126.059
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability