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

using model chemistry: HF/aug-cc-pVDZ

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-pVDZ
 hartrees
Energy at 0K-188.593456
Energy at 298.15K-188.595904
HF Energy-188.593456
Nuclear repulsion energy69.096151
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-pVDZ
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' 3386 3083 0.39      
2 A' 3252 2961 12.44      
3 A' 1895 1726 99.60      
4 A' 1565 1426 31.46      
5 A' 1336 1217 18.16      
6 A' 560 510 28.95      
7 A' 473 431 10.24      
8 A" 1301 1185 6.92      
9 A" 645 587 0.53      

Unscaled Zero Point Vibrational Energy (zpe) 7206.7 cm-1
Scaled (by 0.9106) Zero Point Vibrational Energy (zpe) 6562.4 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 HF/aug-cc-pVDZ
ABC
2.42828 0.40976 0.35060

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.506 0.000
C2 1.054 -0.071 0.000
H3 1.073 -1.156 0.000
H4 1.962 0.525 0.000
O5 -1.170 -0.374 0.000

Atom - Atom Distances (Å)
  O1 C2 H3 H4 O5
O11.20161.97861.96221.4638
C21.20161.08581.08582.2448
H31.97861.08581.90172.3760
H41.96221.08581.90173.2586
O51.46382.24482.37603.2586

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 119.681 O1 C2 H4 118.067
C2 O1 O5 114.397 H3 C2 H4 122.252
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.240      
2 C 0.887      
3 H -0.053      
4 H -0.102      
5 O -0.492      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  5.618 -0.073 0.000 5.619
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.724 -0.763 0.000
y -0.763 -16.886 0.000
z 0.000 0.000 -17.322
Traceless
 xyz
x 1.380 -0.763 0.000
y -0.763 -0.362 0.000
z 0.000 0.000 -1.017
Polar
3z2-r2-2.034
x2-y21.161
xy-0.763
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.001 0.288 0.000
y 0.288 2.903 0.000
z 0.000 0.000 2.193


<r2> (average value of r2) Å2
<r2> 37.825
(<r2>)1/2 6.150