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All results from a given calculation for C2H5OO (ethylperoxy radical)

using model chemistry: PBEPBE/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at PBEPBE/Def2TZVPP
 hartrees
Energy at 0K-229.372488
Energy at 298.15K-229.378291
HF Energy-229.372488
Nuclear repulsion energy123.109709
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 PBEPBE/Def2TZVPP
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' 3060 3023 11.37      
2 A' 2988 2952 15.55      
3 A' 2986 2949 6.10      
4 A' 1452 1434 7.06      
5 A' 1435 1418 1.42      
6 A' 1362 1345 16.17      
7 A' 1319 1303 12.60      
8 A' 1146 1132 8.50      
9 A' 1095 1082 1.04      
10 A' 982 971 11.73      
11 A' 792 782 0.68      
12 A' 486 480 9.42      
13 A' 294 290 1.41      
14 A" 3068 3030 21.82      
15 A" 3036 2999 3.83      
16 A" 1433 1416 7.32      
17 A" 1226 1212 0.13      
18 A" 1095 1082 4.09      
19 A" 772 762 1.90      
20 A" 207 205 0.23      
21 A" 72 71 0.60      

Unscaled Zero Point Vibrational Energy (zpe) 15152.6 cm-1
Scaled (by 0.9879) Zero Point Vibrational Energy (zpe) 14969.2 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 PBEPBE/Def2TZVPP
ABC
1.10873 0.14532 0.13511

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/Def2TZVPP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.498 0.932 0.000
C2 0.000 0.677 0.000
O3 -0.213 -0.760 0.000
O4 -1.490 -1.094 0.000
H5 1.689 2.012 0.000
H6 1.970 0.499 0.891
H7 1.970 0.499 -0.891
H8 -0.493 1.085 -0.893
H9 -0.493 1.085 0.893

Atom - Atom Distances (Å)
  C1 C2 O3 O4 H5 H6 H7 H8 H9
C11.51952.40653.61021.09711.09721.09722.18782.1878
C21.51951.45292.31452.15302.16952.16951.09911.0991
O32.40651.45291.31993.36222.67342.67342.06932.0693
O43.61022.31451.31994.44473.91233.91232.55762.5576
H51.09712.15303.36224.44471.77831.77832.53362.5336
H61.09722.16952.67343.91231.77831.78183.09762.5322
H71.09722.16952.67343.91231.77831.78182.53223.0976
H82.18781.09912.06932.55762.53363.09762.53221.7866
H92.18781.09912.06932.55762.53362.53223.09761.7866

picture of ethylperoxy radical state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O3 108.099 C1 C2 H8 112.339
C1 C2 H9 112.339 C2 C1 H5 109.679
C2 C1 H6 110.984 C2 C1 H7 110.984
C2 O3 O4 113.091 O3 C2 H8 107.555
O3 C2 H9 107.555 H5 C1 H6 108.269
H5 C1 H7 108.269 H6 C1 H7 108.571
H8 C2 H9 108.733
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.243      
2 C -0.041      
3 O 0.002      
4 O -0.207      
5 H 0.087      
6 H 0.096      
7 H 0.096      
8 H 0.105      
9 H 0.105      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.788 2.475 0.000 3.054
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.250 -1.283 0.000
y -1.283 -25.545 0.000
z 0.000 0.000 -23.458
Traceless
 xyz
x -1.749 -1.283 0.000
y -1.283 -0.691 0.000
z 0.000 0.000 2.439
Polar
3z2-r24.879
x2-y2-0.705
xy-1.283
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.474 1.146 0.000
y 1.146 5.604 0.000
z 0.000 0.000 4.437


<r2> (average value of r2) Å2
<r2> 90.545
(<r2>)1/2 9.516