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

using model chemistry: B3LYP/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at B3LYP/3-21G*
 hartrees
Energy at 0K-188.528364
Energy at 298.15K-188.530866
HF Energy-188.528364
Nuclear repulsion energy67.527127
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 B3LYP/3-21G*
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' 3300 3174 1.75      
2 A' 3153 3033 2.08      
3 A' 1499 1442 7.11      
4 A' 1357 1305 19.23      
5 A' 1202 1156 8.57      
6 A' 922 887 36.00      
7 A' 474 456 0.30      
8 A" 912 877 59.92      
9 A" 632 608 3.51      

Unscaled Zero Point Vibrational Energy (zpe) 6725.5 cm-1
Scaled (by 0.962) Zero Point Vibrational Energy (zpe) 6470.0 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 B3LYP/3-21G*
ABC
2.43619 0.38639 0.33349

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.494 0.000
C2 1.107 -0.167 0.000
H3 1.079 -1.249 0.000
H4 2.018 0.414 0.000
O5 -1.217 -0.264 0.000

Atom - Atom Distances (Å)
  O1 C2 H3 H4 O5
O11.28902.05012.02001.4340
C21.28901.08241.08142.3257
H32.05011.08241.91032.4985
H42.02001.08141.91033.3059
O51.43402.32572.49853.3059

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 119.402 O1 C2 H4 116.625
C2 O1 O5 117.221 H3 C2 H4 123.973
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.202      
2 C -0.018      
3 H 0.234      
4 H 0.234      
5 O -0.248      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  3.682 -0.453 0.000 3.709
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.586 -0.302 0.000
y -0.302 -16.274 0.000
z 0.000 0.000 -16.946
Traceless
 xyz
x 1.024 -0.302 0.000
y -0.302 -0.009 0.000
z 0.000 0.000 -1.016
Polar
3z2-r2-2.031
x2-y20.689
xy-0.302
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.345 0.206 0.000
y 0.206 1.917 0.000
z 0.000 0.000 0.856


<r2> (average value of r2) Å2
<r2> 39.008
(<r2>)1/2 6.246