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All results from a given calculation for CH3CH2O (Ethoxy 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-154.377438
Energy at 298.15K 
HF Energy-154.377438
Nuclear repulsion energy74.008669
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' 3123 3001 23.62      
2 A' 3049 2930 13.53      
3 A' 2905 2791 28.90      
4 A' 1510 1451 4.58      
5 A' 1424 1368 21.23      
6 A' 1403 1348 16.22      
7 A' 1349 1296 8.03      
8 A' 1105 1062 4.81      
9 A' 1085 1042 14.97      
10 A' 894 859 0.62      
11 A' 429 412 6.91      
12 A" 3134 3011 21.46      
13 A" 2917 2802 9.53      
14 A" 1501 1442 3.85      
15 A" 1246 1197 0.24      
16 A" 861 827 0.05      
17 A" 255 245 12.55      
18 A" 154i 148i 28.90      

Unscaled Zero Point Vibrational Energy (zpe) 14018.4 cm-1
Scaled (by 0.9608) Zero Point Vibrational Energy (zpe) 13468.9 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
1.31977 0.31744 0.28245

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 1.045 -0.601 0.000
C2 0.000 0.513 0.000
O3 -1.306 0.099 0.000
H4 2.060 -0.188 0.000
H5 0.930 -1.232 0.886
H6 0.930 -1.232 -0.886
H7 0.130 1.193 0.867
H8 0.130 1.193 -0.867

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5 H6 H7 H8
C11.52732.45341.09541.09391.09392.19272.1927
C21.52731.37032.17562.16682.16681.10991.1099
O32.45341.37033.37812.74912.74912.00302.0030
H41.09542.17563.37811.77551.77552.52642.5264
H51.09392.16682.74911.77551.77132.55403.0978
H61.09392.16682.74911.77551.77133.09782.5540
H72.19271.10992.00302.52642.55403.09781.7350
H82.19271.10992.00302.52643.09782.55401.7350

picture of Ethoxy radical state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O3 115.599 C1 C2 H7 111.513
C1 C2 H8 111.513 C2 C1 H4 111.025
C2 C1 H5 110.420 C2 C1 H6 110.420
O3 C2 H7 107.258 O3 C2 H8 107.258
H4 C1 H5 108.384 H4 C1 H6 108.384
H5 C1 H6 108.119 H7 C2 H8 102.809
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 -0.327      
2 C 0.042      
3 O -0.314      
4 H 0.100      
5 H 0.121      
6 H 0.121      
7 H 0.128      
8 H 0.128      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.871 0.629 0.000 1.974
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.912 0.193 0.000
y 0.193 -18.371 0.000
z 0.000 0.000 -17.884
Traceless
 xyz
x -3.785 0.193 0.000
y 0.193 1.527 0.000
z 0.000 0.000 2.258
Polar
3z2-r24.515
x2-y2-3.541
xy0.193
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.218 0.055 0.000
y 0.055 3.742 0.000
z 0.000 0.000 3.759


<r2> (average value of r2) Å2
<r2> 51.136
(<r2>)1/2 7.151