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

using model chemistry: B1B95/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at B1B95/6-31G**
 hartrees
Energy at 0K-229.434869
Energy at 298.15K-229.440826
HF Energy-229.434869
Nuclear repulsion energy124.507332
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 B1B95/6-31G**
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' 3180 3036 14.02      
2 A' 3107 2967 13.88      
3 A' 3096 2957 9.68      
4 A' 1535 1465 5.34      
5 A' 1523 1454 1.00      
6 A' 1445 1379 21.12      
7 A' 1394 1331 10.93      
8 A' 1267 1210 18.01      
9 A' 1160 1107 8.65      
10 A' 1058 1010 16.43      
11 A' 872 833 2.02      
12 A' 513 490 9.98      
13 A' 306 292 1.42      
14 A" 3188 3044 26.58      
15 A" 3160 3017 5.63      
16 A" 1514 1446 7.15      
17 A" 1291 1233 0.12      
18 A" 1165 1112 4.97      
19 A" 807 771 1.62      
20 A" 227 217 0.35      
21 A" 73 70 0.28      

Unscaled Zero Point Vibrational Energy (zpe) 15940.4 cm-1
Scaled (by 0.9548) Zero Point Vibrational Energy (zpe) 15219.9 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 B1B95/6-31G**
ABC
1.12692 0.14904 0.13849

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.488 0.907 0.000
C2 0.000 0.669 0.000
O3 -0.209 -0.763 0.000
O4 -1.483 -1.052 0.000
H5 1.689 1.981 0.000
H6 1.953 0.472 0.886
H7 1.953 0.472 -0.886
H8 -0.492 1.069 -0.888
H9 -0.492 1.069 0.888

Atom - Atom Distances (Å)
  C1 C2 O3 O4 H5 H6 H7 H8 H9
C11.50722.38153.55911.09191.09151.09152.17662.1766
C21.50721.44682.27142.13892.15402.15401.09171.0917
O32.38151.44681.30633.33642.64332.64332.05552.0555
O43.55912.27141.30634.38853.86223.86222.50342.5034
H51.09192.13893.33644.38851.76971.76972.52582.5258
H61.09152.15402.64333.86221.76971.77193.08012.5176
H71.09152.15402.64333.86221.76971.77192.51763.0801
H82.17661.09172.05552.50342.52583.08012.51761.7768
H92.17661.09172.05552.50342.52582.51763.08011.7768

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 107.438 C1 C2 H8 112.779
C1 C2 H9 112.779 C2 C1 H5 109.726
C2 C1 H6 110.957 C2 C1 H7 110.957
C2 O3 O4 111.079 O3 C2 H8 107.308
O3 C2 H9 107.308 H5 C1 H6 108.294
H5 C1 H7 108.294 H6 C1 H7 108.531
H8 C2 H9 108.930
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.527      
2 C -0.066      
3 O -0.174      
4 O -0.168      
5 H 0.182      
6 H 0.190      
7 H 0.190      
8 H 0.187      
9 H 0.187      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.606 2.430 0.000 2.913
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.311 -1.162 0.000
y -1.162 -24.762 0.000
z 0.000 0.000 -22.864
Traceless
 xyz
x -1.498 -1.162 0.000
y -1.162 -0.675 0.000
z 0.000 0.000 2.172
Polar
3z2-r24.345
x2-y2-0.549
xy-1.162
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.269 0.925 0.000
y 0.925 4.383 0.000
z 0.000 0.000 3.636


<r2> (average value of r2) Å2
<r2> 88.323
(<r2>)1/2 9.398