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

using model chemistry: QCISD(T)=FULL/6-311+G(3df,2p)

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/6-311+G(3df,2p)
 hartrees
Energy at 0K-189.385757
Energy at 298.15K-189.388311
HF Energy-188.625263
Nuclear repulsion energy69.927017
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/6-311+G(3df,2p)
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' 3307 3307        
2 A' 3148 3148        
3 A' 1499 1499        
4 A' 1346 1346        
5 A' 1237 1237        
6 A' 934 934        
7 A' 535 535        
8 A" 867 867        
9 A" 640 640        

Unscaled Zero Point Vibrational Energy (zpe) 6755.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 6755.9 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/6-311+G(3df,2p)
ABC
2.61544 0.41580 0.35877

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)=FULL/6-311+G(3df,2p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.468 0.000
C2 1.069 -0.215 0.000
H3 0.999 -1.296 0.000
H4 1.981 0.364 0.000
O5 -1.174 -0.190 0.000

Atom - Atom Distances (Å)
  O1 C2 H3 H4 O5
O11.26882.02701.98341.3463
C21.26881.08281.07972.2435
H32.02701.08281.92792.4381
H41.98341.07971.92793.2031
O51.34632.24352.43813.2031

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 118.871 O1 C2 H4 115.002
C2 O1 O5 118.127 H3 C2 H4 126.127
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability