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

using model chemistry: CCSD(T)/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at CCSD(T)/aug-cc-pVDZ
 hartrees
Energy at 0K-189.171740
Energy at 298.15K-189.174259
HF Energy-188.582029
Nuclear repulsion energy69.113803
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 CCSD(T)/aug-cc-pVDZ
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' 3303 3179        
2 A' 3136 3019        
3 A' 1468 1413        
4 A' 1278 1230        
5 A' 1215 1169        
6 A' 892 858        
7 A' 528 508        
8 A" 843 812        
9 A" 621 597        

Unscaled Zero Point Vibrational Energy (zpe) 6641.5 cm-1
Scaled (by 0.9625) Zero Point Vibrational Energy (zpe) 6392.4 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 CCSD(T)/aug-cc-pVDZ
ABC
2.50712 0.40890 0.35156

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)/aug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.480 0.000
C2 1.078 -0.221 0.000
H3 0.997 -1.314 0.000
H4 2.003 0.361 0.000
O5 -1.184 -0.195 0.000

Atom - Atom Distances (Å)
  O1 C2 H3 H4 O5
O11.28612.05232.00661.3624
C21.28611.09611.09292.2624
H32.05231.09611.95462.4513
H42.00661.09291.95463.2350
O51.36242.26242.45133.2350

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 118.754 O1 C2 H4 114.763
C2 O1 O5 117.314 H3 C2 H4 126.483
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability