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

using model chemistry: B3PW91/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at B3PW91/6-31G*
 hartrees
Energy at 0K-79.129104
Energy at 298.15K-79.132906
HF Energy-79.129104
Nuclear repulsion energy36.906499
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 B3PW91/6-31G*
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' 3181 3043 16.36      
2 A' 3075 2942 26.26      
3 A' 2985 2856 29.15      
4 A' 1507 1442 4.19      
5 A' 1489 1424 2.13      
6 A' 1423 1362 1.53      
7 A' 1088 1041 0.09      
8 A' 990 948 0.90      
9 A' 459 439 56.44      
10 A" 3281 3139 18.37      
11 A" 3122 2987 22.08      
12 A" 1511 1445 4.79      
13 A" 1203 1151 2.92      
14 A" 817 782 3.12      
15 A" 118 113 0.09      

Unscaled Zero Point Vibrational Energy (zpe) 13123.6 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 12555.3 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 B3PW91/6-31G*
ABC
3.44765 0.75824 0.70286

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.011 -0.693 0.000
C2 -0.011 0.794 0.000
H3 1.012 -1.108 0.000
H4 -0.511 -1.100 0.887
H5 -0.511 -1.100 -0.887
H6 0.070 1.352 -0.928
H7 0.070 1.352 0.928

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 H6 H7
C11.48621.10451.09681.09682.24642.2464
C21.48622.15982.15012.15011.08551.0855
H31.10452.15981.76261.76262.79302.7930
H41.09682.15011.76261.77453.10512.5199
H51.09682.15011.76261.77452.51993.1051
H62.24641.08552.79303.10512.51991.8550
H72.24641.08552.79302.51993.10511.8550

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 120.942 C1 C2 H7 120.942
C2 C1 H3 112.113 C2 C1 H4 111.805
C2 C1 H5 111.805 H3 C1 H4 106.398
H3 C1 H5 106.398 H4 C1 H5 107.987
H6 C2 H7 117.398
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.527      
2 C -0.337      
3 H 0.179      
4 H 0.178      
5 H 0.178      
6 H 0.165      
7 H 0.165      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.133 -0.217 0.000 0.254
CHELPG        
AIM        
ESP 0.105 -0.213 0.000 0.238


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.869 0.184 0.000
y 0.184 -13.843 0.000
z 0.000 0.000 -13.304
Traceless
 xyz
x -1.296 0.184 0.000
y 0.184 0.244 0.000
z 0.000 0.000 1.052
Polar
3z2-r22.104
x2-y2-1.026
xy0.184
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.375 -0.015 0.000
y -0.015 3.659 0.000
z 0.000 0.000 3.208


<r2> (average value of r2) Å2
<r2> 27.560
(<r2>)1/2 5.250