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

using model chemistry: HF/cc-pVDZ

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/cc-pVDZ
 hartrees
Energy at 0K-78.604204
Energy at 298.15K-78.608176
HF Energy-78.604204
Nuclear repulsion energy36.861756
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/cc-pVDZ
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' 3277 2975 16.30      
2 A' 3210 2915 38.41      
3 A' 3136 2847 38.53      
4 A' 1581 1436 3.12      
5 A' 1564 1420 2.08      
6 A' 1504 1365 0.04      
7 A' 1110 1008 0.27      
8 A' 1059 962 0.05      
9 A' 471 428 39.72      
10 A" 3382 3071 21.82      
11 A" 3248 2949 31.58      
12 A" 1582 1437 3.95      
13 A" 1283 1165 2.02      
14 A" 854 776 1.10      
15 A" 180 164 0.38      

Unscaled Zero Point Vibrational Energy (zpe) 13720.0 cm-1
Scaled (by 0.908) Zero Point Vibrational Energy (zpe) 12457.8 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/cc-pVDZ
ABC
3.44589 0.75263 0.69921

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/cc-pVDZ

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 1.004 -1.102 0.000
H4 -0.521 -1.097 0.884
H5 -0.521 -1.097 -0.884
H6 0.121 1.346 -0.925
H7 0.121 1.346 0.925

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 H6 H7
C11.49741.09791.09251.09252.24832.2483
C21.49742.15812.15132.15131.08391.0839
H31.09792.15811.76201.76202.76212.7621
H41.09252.15131.76201.76813.10682.5258
H51.09252.15131.76201.76812.52583.1068
H62.24831.08392.76213.10682.52581.8510
H72.24831.08392.76212.52583.10681.8510

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 120.302 C1 C2 H7 120.302
C2 C1 H3 111.593 C2 C1 H4 111.377
C2 C1 H5 111.377 H3 C1 H4 107.115
H3 C1 H5 107.115 H4 C1 H5 108.038
H6 C2 H7 117.268
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.067      
2 C -0.145      
3 H 0.040      
4 H 0.038      
5 H 0.038      
6 H 0.048      
7 H 0.048      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.177 -0.174 0.000 0.248
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.079 0.287 0.000
y 0.287 -14.479 0.000
z 0.000 0.000 -13.672
Traceless
 xyz
x -1.004 0.287 0.000
y 0.287 -0.103 0.000
z 0.000 0.000 1.107
Polar
3z2-r22.214
x2-y2-0.600
xy0.287
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.562 0.049 0.000
y 0.049 3.626 0.000
z 0.000 0.000 3.274


<r2> (average value of r2) Å2
<r2> 27.859
(<r2>)1/2 5.278