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

using model chemistry: QCISD(T)=FULL/6-31+G**

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/6-31+G**
 hartrees
Energy at 0K-189.129244
Energy at 298.15K-189.131760
HF Energy-188.562013
Nuclear repulsion energy68.942904
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/6-31+G**
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' 3363 3363        
2 A' 3203 3203        
3 A' 1520 1520        
4 A' 1355 1355        
5 A' 1238 1238        
6 A' 853 853        
7 A' 523 523        
8 A" 863 863        
9 A" 633 633        

Unscaled Zero Point Vibrational Energy (zpe) 6775.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 6775.5 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/6-31+G**
ABC
2.54414 0.40361 0.34835

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.477 0.000
C2 1.086 -0.199 0.000
H3 1.032 -1.280 0.000
H4 1.990 0.390 0.000
O5 -1.192 -0.216 0.000

Atom - Atom Distances (Å)
  O1 C2 H3 H4 O5
O11.27922.03771.99201.3791
C21.27921.08191.07932.2776
H32.03771.08191.92482.4650
H41.99201.07931.92483.2392
O51.37912.27762.46503.2392

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 119.089 O1 C2 H4 114.999
C2 O1 O5 117.865 H3 C2 H4 125.911
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability