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

using model chemistry: QCISD/6-31G**

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/6-31G**
 hartrees
Energy at 0K-189.087462
Energy at 298.15K-189.090007
HF Energy-188.551662
Nuclear repulsion energy69.216706
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/6-31G**
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' 3379 3181 0.28      
2 A' 3223 3034 0.41      
3 A' 1534 1444 10.67      
4 A' 1386 1305 11.03      
5 A' 1241 1169 22.11      
6 A' 1006 947 5.79      
7 A' 526 495 4.26      
8 A" 866 815 30.52      
9 A" 618 581 2.26      

Unscaled Zero Point Vibrational Energy (zpe) 6889.4 cm-1
Scaled (by 0.9414) Zero Point Vibrational Energy (zpe) 6485.7 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/6-31G**
ABC
2.47470 0.41197 0.35318

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.487 0.000
C2 1.074 -0.213 0.000
H3 0.993 -1.291 0.000
H4 1.995 0.351 0.000
O5 -1.179 -0.210 0.000

Atom - Atom Distances (Å)
  O1 C2 H3 H4 O5
O11.28222.03621.99941.3698
C21.28221.08091.07912.2535
H32.03621.08091.92282.4262
H41.99941.07911.92283.2230
O51.36982.25352.42623.2230

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 118.765 O1 C2 H4 115.448
C2 O1 O5 116.336 H3 C2 H4 125.787
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability