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

using model chemistry: PBEPBEultrafine/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 PBEPBEultrafine/aug-cc-pVDZ
 hartrees
Energy at 0K-189.424319
Energy at 298.15K-189.426865
HF Energy-189.424319
Nuclear repulsion energy69.503956
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 PBEPBEultrafine/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' 3231 3211 0.38      
2 A' 3060 3041 2.43      
3 A' 1446 1437 32.71      
4 A' 1326 1318 22.78      
5 A' 1190 1183 21.72      
6 A' 966 960 74.20      
7 A' 525 522 0.45      
8 A" 837 832 36.53      
9 A" 647 643 9.00      

Unscaled Zero Point Vibrational Energy (zpe) 6613.9 cm-1
Scaled (by 0.9939) Zero Point Vibrational Energy (zpe) 6573.6 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 PBEPBEultrafine/aug-cc-pVDZ
ABC
2.62897 0.40858 0.35362

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.463 0.000
C2 1.078 -0.231 0.000
H3 1.007 -1.328 0.000
H4 1.999 0.363 0.000
O5 -1.185 -0.169 0.000

Atom - Atom Distances (Å)
  O1 C2 H3 H4 O5
O11.28262.05452.00151.3425
C21.28261.09871.09572.2638
H32.05451.09871.96012.4792
H42.00151.09571.96013.2277
O51.34252.26382.47923.2277

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 119.053 O1 C2 H4 114.389
C2 O1 O5 119.153 H3 C2 H4 126.558
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O 0.043      
2 C 0.822      
3 H -0.182      
4 H -0.247      
5 O -0.436      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  3.785 -0.391 0.000 3.805
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.037 -0.383 0.000
y -0.383 -16.894 0.000
z 0.000 0.000 -17.778
Traceless
 xyz
x 0.299 -0.383 0.000
y -0.383 0.513 0.000
z 0.000 0.000 -0.813
Polar
3z2-r2-1.626
x2-y2-0.143
xy-0.383
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.931 -0.101 0.000
y -0.101 3.373 0.000
z 0.000 0.000 2.577


<r2> (average value of r2) Å2
<r2> 38.137
(<r2>)1/2 6.176