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

using model chemistry: B3LYP/CEP-121G

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/CEP-121G
 hartrees
Energy at 0K-14.234486
Energy at 298.15K-14.238178
HF Energy-14.234486
Nuclear repulsion energy22.336648
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/CEP-121G
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' 3086 3007 26.19      
2 A' 3014 2937 46.07      
3 A' 2924 2850 44.34      
4 A' 1505 1466 9.35      
5 A' 1464 1427 0.89      
6 A' 1425 1389 3.45      
7 A' 1053 1026 0.02      
8 A' 990 965 0.68      
9 A' 486 474 78.03      
10 A" 3207 3125 40.07      
11 A" 3064 2986 37.46      
12 A" 1512 1473 6.86      
13 A" 1193 1163 2.65      
14 A" 816 795 3.42      
15 A" 37 36 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 12887.8 cm-1
Scaled (by 0.9745) Zero Point Vibrational Energy (zpe) 12559.1 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/CEP-121G
ABC
3.42012 0.73744 0.68424

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-121G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.008 -0.706 0.000
C2 -0.008 0.807 0.000
H3 1.019 -1.118 0.000
H4 -0.510 -1.110 0.890
H5 -0.510 -1.110 -0.890
H6 0.047 1.367 -0.933
H7 0.047 1.367 0.933

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 H6 H7
C11.51251.10661.09891.09892.27392.2739
C21.51252.18122.17222.17221.09011.0901
H31.10662.18121.76931.76932.82662.8266
H41.09892.17221.76931.78013.12582.5392
H51.09892.17221.76931.78012.53923.1258
H62.27391.09012.82663.12582.53921.8669
H72.27391.09012.82662.53923.12581.8669

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 120.928 C1 C2 H7 120.928
C2 C1 H3 111.842 C2 C1 H4 111.590
C2 C1 H5 111.590 H3 C1 H4 106.681
H3 C1 H5 106.681 H4 C1 H5 108.179
H6 C2 H7 117.819
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-121G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.472      
2 C -0.249      
3 H 0.158      
4 H 0.153      
5 H 0.153      
6 H 0.129      
7 H 0.129      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.124 -0.287 0.000 0.312
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.453 0.153 0.000
y 0.153 -14.356 0.000
z 0.000 0.000 -13.685
Traceless
 xyz
x -1.432 0.153 0.000
y 0.153 0.212 0.000
z 0.000 0.000 1.220
Polar
3z2-r22.439
x2-y2-1.096
xy0.153
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.870 -0.045 0.000
y -0.045 4.016 0.000
z 0.000 0.000 3.504


<r2> (average value of r2) Å2
<r2> 25.992
(<r2>)1/2 5.098