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

using model chemistry: QCISD/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 QCISD/cc-pVTZ
 hartrees
Energy at 0K-189.287855
Energy at 298.15K-189.290437
HF Energy-188.627423
Nuclear repulsion energy69.899033
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/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' 3313 3166 0.22      
2 A' 3161 3020 1.69      
3 A' 1528 1460 27.61      
4 A' 1385 1323 23.36      
5 A' 1246 1191 17.18      
6 A' 997 953 20.77      
7 A' 531 507 2.94      
8 A" 925 884 30.79      
9 A" 634 605 2.44      

Unscaled Zero Point Vibrational Energy (zpe) 6859.5 cm-1
Scaled (by 0.9555) Zero Point Vibrational Energy (zpe) 6554.2 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 QCISD/cc-pVTZ
ABC
2.54865 0.41912 0.35993

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.478 0.000
C2 1.064 -0.208 0.000
H3 0.986 -1.287 0.000
H4 1.982 0.360 0.000
O5 -1.169 -0.206 0.000

Atom - Atom Distances (Å)
  O1 C2 H3 H4 O5
O11.26612.02141.98551.3543
C21.26611.08151.07942.2334
H32.02141.08151.92432.4114
H41.98551.07941.92433.2016
O51.35432.23342.41143.2016

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 118.670 O1 C2 H4 115.446
C2 O1 O5 116.889 H3 C2 H4 125.885
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability