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

using model chemistry: CID/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at CID/3-21G
 hartrees
Energy at 0K-187.825137
Energy at 298.15K-187.827535
HF Energy-187.523944
Nuclear repulsion energy66.617558
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 CID/3-21G
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' 3302 3076 4.40      
2 A' 3176 2959 3.05      
3 A' 1659 1546 2.56      
4 A' 1520 1416 5.21      
5 A' 1261 1175 6.97      
6 A' 629 586 7.83      
7 A' 413 385 3.12      
8 A" 1159 1080 22.04      
9 A" 626 583 0.03      

Unscaled Zero Point Vibrational Energy (zpe) 6872.8 cm-1
Scaled (by 0.9316) Zero Point Vibrational Energy (zpe) 6402.7 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 CID/3-21G
ABC
2.22609 0.38049 0.32495

See section I.F.4 to change rotational constant units
Geometric Data calculated at CID/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.536 0.000
C2 1.095 -0.065 0.000
H3 1.110 -1.148 0.000
H4 2.012 0.513 0.000
O5 -1.212 -0.408 0.000

Atom - Atom Distances (Å)
  O1 C2 H3 H4 O5
O11.24952.01682.01171.5360
C21.24951.08261.08342.3320
H32.01681.08261.88962.4363
H42.01171.08341.88963.3520
O51.53602.33202.43633.3520

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 119.548 O1 C2 H4 118.984
C2 O1 O5 113.294 H3 C2 H4 121.469
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability