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

using model chemistry: PBEPBE/6-31+G**

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/6-31+G**
 hartrees
Energy at 0K-229.291976
Energy at 298.15K-229.297785
HF Energy-229.291976
Nuclear repulsion energy122.628214
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/6-31+G**
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' 3076 3041 10.92      
2 A' 3000 2966 13.20      
3 A' 2995 2961 10.60      
4 A' 1458 1442 8.32      
5 A' 1441 1425 1.74      
6 A' 1369 1354 21.01      
7 A' 1320 1305 12.64      
8 A' 1146 1133 9.63      
9 A' 1097 1084 1.22      
10 A' 984 973 12.34      
11 A' 793 784 0.66      
12 A' 486 480 9.12      
13 A' 294 290 1.44      
14 A" 3085 3050 20.78      
15 A" 3055 3021 3.97      
16 A" 1440 1424 9.48      
17 A" 1226 1212 0.08      
18 A" 1096 1084 4.64      
19 A" 773 765 1.83      
20 A" 212 209 0.22      
21 A" 75 74 0.51      

Unscaled Zero Point Vibrational Energy (zpe) 15210.6 cm-1
Scaled (by 0.9886) Zero Point Vibrational Energy (zpe) 15037.2 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/6-31+G**
ABC
1.09901 0.14432 0.13415

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.496 0.938 0.000
C2 0.000 0.687 0.000
O3 -0.203 -0.776 0.000
O4 -1.496 -1.091 0.000
H5 1.684 2.023 0.000
H6 1.973 0.507 0.895
H7 1.973 0.507 -0.895
H8 -0.506 1.077 -0.899
H9 -0.506 1.077 0.899

Atom - Atom Distances (Å)
  C1 C2 O3 O4 H5 H6 H7 H8 H9
C11.51672.41303.61541.10201.10141.10142.19862.1986
C21.51671.47742.32452.15002.17362.17361.10241.1024
O32.41301.47741.33163.37622.67972.67972.08142.0814
O43.61542.32451.33164.45203.92333.92332.54752.5475
H51.10202.15003.37624.45201.78381.78382.54982.5498
H61.10142.17362.67973.92331.78381.78973.11192.5429
H71.10142.17362.67973.92331.78381.78972.54293.1119
H82.19861.10242.08142.54752.54983.11192.54291.7979
H92.19861.10242.08142.54752.54982.54293.11191.7979

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 107.388 C1 C2 H8 113.214
C1 C2 H9 113.214 C2 C1 H5 109.349
C2 C1 H6 111.253 C2 C1 H7 111.253
C2 O3 O4 111.582 O3 C2 H8 106.665
O3 C2 H9 106.665 H5 C1 H6 108.104
H5 C1 H7 108.104 H6 C1 H7 108.674
H8 C2 H9 109.257
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.541      
2 C -0.190      
3 O 0.001      
4 O -0.210      
5 H 0.183      
6 H 0.193      
7 H 0.193      
8 H 0.186      
9 H 0.186      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.886 2.692 0.000 3.287
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.524 -1.321 0.000
y -1.321 -25.901 0.000
z 0.000 0.000 -23.653
Traceless
 xyz
x -1.747 -1.321 0.000
y -1.321 -0.813 0.000
z 0.000 0.000 2.560
Polar
3z2-r25.119
x2-y2-0.623
xy-1.321
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.507 1.135 0.000
y 1.135 5.577 0.000
z 0.000 0.000 4.341


<r2> (average value of r2) Å2
<r2> 91.244
(<r2>)1/2 9.552