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All results from a given calculation for CH3OO (methylperoxy radical)

using model chemistry: B3PW91/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A"
Energy calculated at B3PW91/6-311G*
 hartrees
Energy at 0K-190.190528
Energy at 298.15K-190.194187
HF Energy-190.190528
Nuclear repulsion energy75.222862
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 B3PW91/6-311G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3177 3059 12.36      
2 A' 3062 2948 15.71      
3 A' 1498 1442 11.13      
4 A' 1455 1401 0.60      
5 A' 1240 1193 9.88      
6 A' 1181 1137 0.94      
7 A' 940 905 13.26      
8 A' 500 481 6.55      
9 A" 3159 3041 18.32      
10 A" 1485 1430 10.97      
11 A" 1143 1100 0.36      
12 A" 150 145 0.16      

Unscaled Zero Point Vibrational Energy (zpe) 9494.9 cm-1
Scaled (by 0.9627) Zero Point Vibrational Energy (zpe) 9140.7 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 B3PW91/6-311G*
ABC
1.77607 0.38118 0.33399

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.994 -0.478 0.000
O2 0.000 0.562 0.000
O3 -1.208 0.063 0.000
H4 1.955 0.035 0.000
H5 0.873 -1.087 0.897
H6 0.873 -1.087 -0.897

Atom - Atom Distances (Å)
  C1 O2 O3 H4 H5 H6
C11.43912.26811.08941.09051.0905
O21.43911.30742.02502.07052.0705
O32.26811.30743.16372.54192.5419
H41.08942.02503.16371.79801.7980
H51.09052.07052.54191.79801.7937
H61.09052.07052.54191.79801.7937

picture of methylperoxy radical state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 O3 111.252 O2 C1 H4 105.590
O2 C1 H5 109.090 O2 C1 H6 109.090
H4 C1 H5 111.133 H4 C1 H6 111.133
H5 C1 H6 110.647
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.441      
2 O -0.109      
3 O -0.160      
4 H 0.232      
5 H 0.240      
6 H 0.240      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.488 -1.188 0.000 2.757
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.524 -0.424 0.000
y -0.424 -17.903 0.000
z 0.000 0.000 -16.779
Traceless
 xyz
x -0.183 -0.424 0.000
y -0.424 -0.752 0.000
z 0.000 0.000 0.935
Polar
3z2-r21.869
x2-y20.379
xy-0.424
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.139 0.008 0.000
y 0.008 2.455 0.000
z 0.000 0.000 2.275


<r2> (average value of r2) Å2
<r2> 41.736
(<r2>)1/2 6.460