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

using model chemistry: B3LYP/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 B3LYP/6-31G
 hartrees
Energy at 0K-229.471604
Energy at 298.15K-229.477449
HF Energy-229.471604
Nuclear repulsion energy121.176712
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 B3LYP/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' 3140 3021 18.73      
2 A' 3089 2972 10.30      
3 A' 3063 2947 11.54      
4 A' 1548 1489 8.83      
5 A' 1538 1479 2.41      
6 A' 1465 1409 13.13      
7 A' 1396 1343 19.51      
8 A' 1152 1108 6.48      
9 A' 1039 999 8.89      
10 A' 1027 988 24.54      
11 A' 807 776 5.64      
12 A' 481 463 9.84      
13 A' 295 284 1.26      
14 A" 3164 3044 36.44      
15 A" 3139 3020 0.00      
16 A" 1529 1471 8.82      
17 A" 1294 1245 0.03      
18 A" 1161 1116 5.89      
19 A" 834 802 2.39      
20 A" 215 207 0.53      
21 A" 64 62 0.03      

Unscaled Zero Point Vibrational Energy (zpe) 15719.2 cm-1
Scaled (by 0.962) Zero Point Vibrational Energy (zpe) 15121.9 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 B3LYP/6-31G
ABC
1.07818 0.14120 0.13105

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.495 0.960 0.000
C2 0.000 0.703 0.000
O3 -0.178 -0.784 0.000
O4 -1.519 -1.121 0.000
H5 1.684 2.039 0.000
H6 1.966 0.528 0.888
H7 1.966 0.528 -0.888
H8 -0.502 1.084 -0.893
H9 -0.502 1.084 0.893

Atom - Atom Distances (Å)
  C1 C2 O3 O4 H5 H6 H7 H8 H9
C11.51672.41643.66241.09551.09401.09402.19122.1912
C21.51671.49742.37372.14942.16452.16451.09301.0930
O32.41641.49741.38263.38152.66622.66622.09522.0952
O43.66242.37371.38264.49933.95683.95682.58682.5868
H51.09552.14943.38154.49931.77491.77492.54742.5474
H61.09402.16452.66623.95681.77491.77583.09422.5304
H71.09402.16452.66623.95681.77491.77582.53043.0942
H82.19121.09302.09522.58682.54743.09422.53041.7859
H92.19121.09302.09522.58682.54742.53043.09421.7859

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 106.588 C1 C2 H8 113.204
C1 C2 H9 113.204 C2 C1 H5 109.690
C2 C1 H6 110.972 C2 C1 H7 110.972
C2 O3 O4 110.951 O3 C2 H8 106.925
O3 C2 H9 106.925 H5 C1 H6 108.313
H5 C1 H7 108.313 H6 C1 H7 108.498
H8 C2 H9 109.561
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.426      
2 C -0.027      
3 O -0.247      
4 O -0.133      
5 H 0.154      
6 H 0.167      
7 H 0.167      
8 H 0.173      
9 H 0.173      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.540 2.883 0.000 3.268
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.532 -1.166 0.000
y -1.166 -25.440 0.000
z 0.000 0.000 -23.166
Traceless
 xyz
x -1.229 -1.166 0.000
y -1.166 -1.091 0.000
z 0.000 0.000 2.320
Polar
3z2-r24.640
x2-y2-0.092
xy-1.166
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.419 1.168 0.000
y 1.168 4.437 0.000
z 0.000 0.000 3.439


<r2> (average value of r2) Å2
<r2> 92.324
(<r2>)1/2 9.609