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All results from a given calculation for C2H5OO (ethylperoxy 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-229.510385
Energy at 298.15K-229.516331
HF Energy-229.510385
Nuclear repulsion energy124.179703
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' 3131 3016 15.72      
2 A' 3064 2951 14.56      
3 A' 3053 2940 10.73      
4 A' 1502 1447 7.45      
5 A' 1490 1435 1.11      
6 A' 1415 1363 24.12      
7 A' 1375 1324 6.49      
8 A' 1225 1180 16.25      
9 A' 1140 1098 5.39      
10 A' 1032 994 16.97      
11 A' 853 821 2.25      
12 A' 510 491 10.21      
13 A' 306 295 1.69      
14 A" 3140 3024 30.08      
15 A" 3113 2998 3.51      
16 A" 1478 1423 8.28      
17 A" 1277 1229 0.34      
18 A" 1147 1105 5.47      
19 A" 801 772 1.83      
20 A" 221 213 0.35      
21 A" 78 75 0.30      

Unscaled Zero Point Vibrational Energy (zpe) 15675.9 cm-1
Scaled (by 0.9631) Zero Point Vibrational Energy (zpe) 15097.4 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 B3PW91/6-311G**
ABC
1.12570 0.14784 0.13746

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 1.489 0.916 0.000
C2 0.000 0.675 0.000
O3 -0.211 -0.764 0.000
O4 -1.482 -1.066 0.000
H5 1.687 1.991 0.000
H6 1.957 0.482 0.887
H7 1.957 0.482 -0.887
H8 -0.494 1.073 -0.890
H9 -0.494 1.073 0.890

Atom - Atom Distances (Å)
  C1 C2 O3 O4 H5 H6 H7 H8 H9
C11.50872.39093.57211.09291.09221.09222.17942.1794
C21.50871.45462.28662.14002.15682.15681.09291.0929
O32.39091.45461.30623.34622.65342.65342.06072.0607
O43.57212.28661.30624.40373.87423.87422.51882.5188
H51.09292.14003.34624.40371.77051.77052.52862.5286
H61.09222.15682.65343.87421.77051.77363.08392.5207
H71.09222.15682.65343.87421.77051.77362.52073.0839
H82.17941.09292.06072.51882.52863.08392.52071.7800
H92.17941.09292.06072.51882.52862.52073.08391.7800

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 107.557 C1 C2 H8 112.826
C1 C2 H9 112.826 C2 C1 H5 109.647
C2 C1 H6 111.025 C2 C1 H7 111.025
C2 O3 O4 111.722 O3 C2 H8 107.128
O3 C2 H9 107.128 H5 C1 H6 108.245
H5 C1 H7 108.245 H6 C1 H7 108.566
H8 C2 H9 109.049
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 -0.365      
2 C -0.041      
3 O -0.136      
4 O -0.159      
5 H 0.134      
6 H 0.140      
7 H 0.140      
8 H 0.143      
9 H 0.143      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.625 2.475 0.000 2.961
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.799 -1.194 0.000
y -1.194 -25.119 0.000
z 0.000 0.000 -23.076
Traceless
 xyz
x -1.701 -1.194 0.000
y -1.194 -0.681 0.000
z 0.000 0.000 2.382
Polar
3z2-r24.765
x2-y2-0.680
xy-1.194
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.674 0.991 0.000
y 0.991 4.702 0.000
z 0.000 0.000 3.819


<r2> (average value of r2) Å2
<r2> 89.063
(<r2>)1/2 9.437