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

using model chemistry: HF/aug-cc-pVTZ

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/aug-cc-pVTZ
 hartrees
Energy at 0K-188.640718
Energy at 298.15K-188.643199
HF Energy-188.640718
Nuclear repulsion energy69.502818
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/aug-cc-pVTZ
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' 3361 3059 0.48      
2 A' 3235 2945 11.73      
3 A' 1907 1736 93.05      
4 A' 1582 1440 30.43      
5 A' 1351 1230 18.01      
6 A' 600 546 24.58      
7 A' 476 433 8.16      
8 A" 1308 1191 6.89      
9 A" 655 596 0.54      

Unscaled Zero Point Vibrational Energy (zpe) 7237.2 cm-1
Scaled (by 0.9104) Zero Point Vibrational Energy (zpe) 6588.8 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/aug-cc-pVTZ
ABC
2.49730 0.41238 0.35394

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/aug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.497 0.000
C2 1.052 -0.072 0.000
H3 1.078 -1.151 0.000
H4 1.953 0.521 0.000
O5 -1.168 -0.364 0.000

Atom - Atom Distances (Å)
  O1 C2 H3 H4 O5
O11.19591.96901.95271.4506
C21.19591.07861.07882.2384
H31.96901.07861.88672.3797
H41.95271.07881.88673.2433
O51.45062.23842.37973.2433

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 119.834 O1 C2 H4 118.188
C2 O1 O5 115.176 H3 C2 H4 121.978
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.113      
2 C -0.537      
3 H 0.579      
4 H 0.571      
5 O -0.499      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  5.620 -0.040 0.000 5.620
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.740 -0.857 0.000
y -0.857 -16.823 0.000
z 0.000 0.000 -17.193
Traceless
 xyz
x 1.268 -0.857 0.000
y -0.857 -0.356 0.000
z 0.000 0.000 -0.912
Polar
3z2-r2-1.823
x2-y21.083
xy-0.857
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.006 0.266 0.000
y 0.266 2.945 0.000
z 0.000 0.000 2.280


<r2> (average value of r2) Å2
<r2> 37.540
(<r2>)1/2 6.127