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All results from a given calculation for C2H5 (Ethyl radical)

using model chemistry: HF/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at HF/6-31G(2df,p)
 hartrees
Energy at 0K-78.609274
Energy at 298.15K-78.613240
HF Energy-78.609274
Nuclear repulsion energy36.989260
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 HF/6-31G(2df,p)
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' 3276 2967 17.20      
2 A' 3196 2894 37.44      
3 A' 3127 2832 35.95      
4 A' 1602 1451 3.02      
5 A' 1585 1435 1.69      
6 A' 1524 1380 0.02      
7 A' 1101 997 0.30      
8 A' 1069 968 0.15      
9 A' 472 428 40.44      
10 A" 3378 3059 23.44      
11 A" 3232 2926 31.93      
12 A" 1606 1454 2.86      
13 A" 1295 1173 2.02      
14 A" 859 777 0.78      
15 A" 176 159 0.53      

Unscaled Zero Point Vibrational Energy (zpe) 13748.7 cm-1
Scaled (by 0.9055) Zero Point Vibrational Energy (zpe) 12449.4 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 HF/6-31G(2df,p)
ABC
3.49127 0.75450 0.70163

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.017 -0.698 0.000
C2 -0.017 0.799 0.000
H3 0.997 -1.101 0.000
H4 -0.518 -1.093 0.879
H5 -0.518 -1.093 -0.879
H6 0.121 1.342 -0.918
H7 0.121 1.342 0.918

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 H6 H7
C11.49761.09121.08591.08592.24172.2417
C21.49762.15392.14562.14561.07551.0755
H31.09122.15391.75191.75192.75312.7531
H41.08592.14561.75191.75743.09292.5176
H51.08592.14561.75191.75742.51763.0929
H62.24171.07552.75313.09292.51761.8367
H72.24171.07552.75312.51763.09291.8367

picture of Ethyl radical state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 120.305 C1 C2 H7 120.305
C2 C1 H3 111.652 C2 C1 H4 111.305
C2 C1 H5 111.305 H3 C1 H4 107.165
H3 C1 H5 107.165 H4 C1 H5 108.031
H6 C2 H7 117.260
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.399      
2 C -0.304      
3 H 0.138      
4 H 0.140      
5 H 0.140      
6 H 0.143      
7 H 0.143      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.175 -0.143 0.000 0.226
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.895 0.290 0.000
y 0.290 -14.234 0.000
z 0.000 0.000 -13.516
Traceless
 xyz
x -1.020 0.290 0.000
y 0.290 -0.029 0.000
z 0.000 0.000 1.049
Polar
3z2-r22.098
x2-y2-0.661
xy0.290
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.568 0.043 0.000
y 0.043 3.536 0.000
z 0.000 0.000 3.242


<r2> (average value of r2) Å2
<r2> 27.635
(<r2>)1/2 5.257