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

using model chemistry: BLYP/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at BLYP/STO-3G
 hartrees
Energy at 0K-186.988830
Energy at 298.15K-186.990930
HF Energy-186.988830
Nuclear repulsion energy66.305729
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 BLYP/STO-3G
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' 3460 3201 0.83      
2 A' 3241 2999 29.53      
3 A' 1482 1372 1.77      
4 A' 1321 1222 14.26      
5 A' 1196 1107 5.08      
6 A' 1059 980 2.51      
7 A' 484 448 0.99      
8 A" 620 573 7.63      
9 A" 414 383 57.41      

Unscaled Zero Point Vibrational Energy (zpe) 6638.0 cm-1
Scaled (by 0.9252) Zero Point Vibrational Energy (zpe) 6141.4 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 BLYP/STO-3G
ABC
2.34231 0.37235 0.32128

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.499 0.000
C2 1.130 -0.296 0.000
H3 1.046 -1.400 0.000
H4 2.087 0.255 0.000
O5 -1.239 -0.133 0.000

Atom - Atom Distances (Å)
  O1 C2 H3 H4 O5
O11.38142.16752.10101.3907
C21.38141.10681.10492.3741
H32.16751.10681.95572.6120
H42.10101.10491.95573.3483
O51.39072.37412.61203.3483

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 120.779 O1 C2 H4 114.902
C2 O1 O5 117.834 H3 C2 H4 124.319
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O 0.004      
2 C -0.076      
3 H 0.092      
4 H 0.093      
5 O -0.113      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.554 -0.346 0.000 1.592
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.023 0.004 0.000
y 0.004 -14.923 0.000
z 0.000 0.000 -15.256
Traceless
 xyz
x 0.066 0.004 0.000
y 0.004 0.217 0.000
z 0.000 0.000 -0.283
Polar
3z2-r2-0.566
x2-y2-0.100
xy0.004
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.757 -0.137 0.000
y -0.137 1.188 0.000
z 0.000 0.000 0.478


<r2> (average value of r2) Å2
<r2> 39.477
(<r2>)1/2 6.283