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

using model chemistry: B3PW91/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at B3PW91/6-31G(2df,p)
 hartrees
Energy at 0K-189.517876
Energy at 298.15K-189.520480
HF Energy-189.517876
Nuclear repulsion energy70.634201
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 B3PW91/6-31G(2df,p)
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 3175 0.26      
2 A' 3144 3023 2.81      
3 A' 1540 1481 33.38      
4 A' 1401 1347 13.70      
5 A' 1250 1202 23.48      
6 A' 1019 980 78.70      
7 A' 538 517 0.48      
8 A" 893 859 34.79      
9 A" 687 660 5.48      

Unscaled Zero Point Vibrational Energy (zpe) 6887.2 cm-1
Scaled (by 0.9614) Zero Point Vibrational Energy (zpe) 6621.4 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 B3PW91/6-31G(2df,p)
ABC
2.75105 0.42034 0.36463

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.452 0.000
C2 1.062 -0.226 0.000
H3 0.994 -1.310 0.000
H4 1.979 0.349 0.000
O5 -1.168 -0.162 0.000

Atom - Atom Distances (Å)
  O1 C2 H3 H4 O5
O11.25992.02291.98181.3193
C21.25991.08601.08312.2306
H32.02291.08601.93032.4476
H41.98181.08311.93033.1883
O51.31932.23062.44763.1883

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 118.966 O1 C2 H4 115.313
C2 O1 O5 119.712 H3 C2 H4 125.720
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O 0.104      
2 C -0.126      
3 H 0.182      
4 H 0.186      
5 O -0.346      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  3.727 -0.391 0.000 3.747
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.032 -0.445 0.000
y -0.445 -15.943 0.000
z 0.000 0.000 -16.897
Traceless
 xyz
x 0.388 -0.445 0.000
y -0.445 0.522 0.000
z 0.000 0.000 -0.910
Polar
3z2-r2-1.820
x2-y2-0.089
xy-0.445
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.605 -0.083 0.000
y -0.083 2.486 0.000
z 0.000 0.000 1.664


<r2> (average value of r2) Å2
<r2> 36.744
(<r2>)1/2 6.062