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

using model chemistry: HF/LANL2DZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at HF/LANL2DZ
 hartrees
Energy at 0K-188.537742
Energy at 298.15K-188.539931
HF Energy-188.537742
Nuclear repulsion energy65.359420
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 HF/LANL2DZ
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' 3425 3082 9.41      
2 A' 3302 2972 22.20      
3 A' 1850 1664 142.52      
4 A' 1611 1450 45.83      
5 A' 1349 1214 11.09      
6 A' 482 433 100.09      
7 A' 347 313 1.71      
8 A" 1325 1192 12.25      
9 A" 531 478 1.04      

Unscaled Zero Point Vibrational Energy (zpe) 7111.2 cm-1
Scaled (by 0.8999) Zero Point Vibrational Energy (zpe) 6399.3 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 HF/LANL2DZ
ABC
2.34479 0.34894 0.30374

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/LANL2DZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.530 0.000
C2 1.120 0.042 0.000
H3 1.251 -1.028 0.000
H4 1.980 0.692 0.000
O5 -1.244 -0.520 0.000

Atom - Atom Distances (Å)
  O1 C2 H3 H4 O5
O11.22201.99801.98631.6281
C21.22201.07771.07752.4299
H31.99801.07771.86772.5457
H41.98631.07751.86773.4439
O51.62812.42992.54573.4439

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 120.517 O1 C2 H4 119.361
C2 O1 O5 116.260 H3 C2 H4 120.122
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/LANL2DZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.230      
2 C 0.074      
3 H 0.224      
4 H 0.207      
5 O -0.276      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  5.434 -0.285 0.000 5.441
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.749 -0.127 0.000
y -0.127 -17.316 0.000
z 0.000 0.000 -17.288
Traceless
 xyz
x 2.553 -0.127 0.000
y -0.127 -1.297 0.000
z 0.000 0.000 -1.255
Polar
3z2-r2-2.511
x2-y22.567
xy-0.127
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.372 0.500 0.000
y 0.500 2.167 0.000
z 0.000 0.000 0.955


<r2> (average value of r2) Å2
<r2> 41.625
(<r2>)1/2 6.452