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

using model chemistry: HF/aug-cc-pVTZ

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/aug-cc-pVTZ
 hartrees
Energy at 0K-78.628924
Energy at 298.15K-78.632889
HF Energy-78.628924
Nuclear repulsion energy37.053944
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/aug-cc-pVTZ
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' 3264 2971 16.89      
2 A' 3179 2894 34.14      
3 A' 3113 2834 38.01      
4 A' 1600 1457 3.81      
5 A' 1583 1441 1.83      
6 A' 1523 1387 0.10      
7 A' 1099 1001 0.29      
8 A' 1068 973 0.26      
9 A' 470 428 49.86      
10 A" 3362 3060 22.26      
11 A" 3213 2925 32.83      
12 A" 1602 1459 4.52      
13 A" 1295 1179 1.70      
14 A" 863 785 0.76      
15 A" 171 155 0.28      

Unscaled Zero Point Vibrational Energy (zpe) 13701.8 cm-1
Scaled (by 0.9104) Zero Point Vibrational Energy (zpe) 12474.1 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 HF/aug-cc-pVTZ
ABC
3.50618 0.75713 0.70373

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.015 -0.698 0.000
C2 -0.015 0.797 0.000
H3 0.998 -1.098 0.000
H4 -0.514 -1.092 0.877
H5 -0.514 -1.092 -0.877
H6 0.104 1.341 -0.918
H7 0.104 1.341 0.918

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 H6 H7
C11.49491.08931.08381.08382.23922.2392
C21.49492.14902.14212.14211.07361.0736
H31.08932.14901.74851.74852.75522.7552
H41.08382.14211.74851.75443.08652.5112
H51.08382.14211.74851.75442.51123.0865
H62.23921.07362.75523.08652.51121.8356
H72.23921.07362.75522.51123.08651.8356

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 120.448 C1 C2 H7 120.448
C2 C1 H3 111.566 C2 C1 H4 111.343
C2 C1 H5 111.343 H3 C1 H4 107.151
H3 C1 H5 107.151 H4 C1 H5 108.069
H6 C2 H7 117.495
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.686      
2 C -0.971      
3 H 0.277      
4 H 0.274      
5 H 0.274      
6 H 0.416      
7 H 0.416      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.178 -0.198 0.000 0.266
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.231 0.297 0.000
y 0.297 -14.542 0.000
z 0.000 0.000 -13.668
Traceless
 xyz
x -1.126 0.297 0.000
y 0.297 -0.093 0.000
z 0.000 0.000 1.219
Polar
3z2-r22.437
x2-y2-0.689
xy0.297
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.553 -0.019 0.000
y -0.019 4.251 0.000
z 0.000 0.000 3.711


<r2> (average value of r2) Å2
<r2> 27.741
(<r2>)1/2 5.267