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

using model chemistry: QCISD(T)=FULL/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(T)=FULL/cc-pVTZ
 hartrees
Energy at 0K-189.357226
Energy at 298.15K-189.359792
HF Energy-188.625444
Nuclear repulsion energy69.882047
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/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' 3308 3165        
2 A' 3171 3034        
3 A' 1507 1442        
4 A' 1338 1280        
5 A' 1243 1190        
6 A' 947 906        
7 A' 537 514        
8 A" 867 829        
9 A" 646 619        

Unscaled Zero Point Vibrational Energy (zpe) 6781.8 cm-1
Scaled (by 0.9569) Zero Point Vibrational Energy (zpe) 6489.5 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/cc-pVTZ
ABC
2.60118 0.41574 0.35845

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.470 0.000
C2 1.070 -0.222 0.000
H3 0.990 -1.297 0.000
H4 1.982 0.348 0.000
O5 -1.174 -0.185 0.000

Atom - Atom Distances (Å)
  O1 C2 H3 H4 O5
O11.27482.02611.98551.3447
C21.27481.07811.07552.2445
H32.02611.07811.92152.4331
H41.98551.07551.92153.2006
O51.34472.24452.43313.2006

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 118.649 O1 C2 H4 115.037
C2 O1 O5 117.904 H3 C2 H4 126.314
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability