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

using model chemistry: PBEPBE/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 PBEPBE/cc-pVTZ
 hartrees
Energy at 0K-79.063618
Energy at 298.15K-79.067388
HF Energy-79.063618
Nuclear repulsion energy36.869205
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 PBEPBE/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' 3081 3060 16.13      
2 A' 2974 2954 21.02      
3 A' 2875 2855 25.84      
4 A' 1430 1420 2.23      
5 A' 1414 1404 3.17      
6 A' 1342 1333 2.93      
7 A' 1057 1050 0.20      
8 A' 941 935 0.66      
9 A' 482 479 51.33      
10 A" 3179 3157 14.51      
11 A" 3022 3001 18.20      
12 A" 1427 1417 5.36      
13 A" 1151 1144 2.61      
14 A" 787 782 2.53      
15 A" 101 100 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 12631.5 cm-1
Scaled (by 0.9931) Zero Point Vibrational Energy (zpe) 12544.4 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 PBEPBE/cc-pVTZ
ABC
3.42853 0.75926 0.70276

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.009 -0.691 0.000
C2 -0.009 0.792 0.000
H3 1.019 -1.108 0.000
H4 -0.505 -1.104 0.892
H5 -0.505 -1.104 -0.892
H6 0.052 1.353 -0.931
H7 0.052 1.353 0.931

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 H6 H7
C11.48341.10961.10031.10032.24732.2473
C21.48342.16092.15302.15301.08901.0890
H31.10962.16091.76521.76522.80382.8038
H41.10032.15301.76521.78313.10972.5196
H51.10032.15301.76521.78312.51963.1097
H62.24731.08902.80383.10972.51961.8629
H72.24731.08902.80382.51963.10971.8629

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 121.000 C1 C2 H7 121.000
C2 C1 H3 112.089 C2 C1 H4 112.035
C2 C1 H5 112.035 H3 C1 H4 106.025
H3 C1 H5 106.025 H4 C1 H5 108.250
H6 C2 H7 117.588
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.259      
2 C -0.270      
3 H 0.102      
4 H 0.103      
5 H 0.103      
6 H 0.111      
7 H 0.111      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.111 -0.300 0.000 0.320
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.353 0.136 0.000
y 0.136 -14.439 0.000
z 0.000 0.000 -13.719
Traceless
 xyz
x -1.274 0.136 0.000
y 0.136 0.097 0.000
z 0.000 0.000 1.177
Polar
3z2-r22.354
x2-y2-0.914
xy0.136
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.275 -0.048 0.000
y -0.048 4.594 0.000
z 0.000 0.000 3.787


<r2> (average value of r2) Å2
<r2> 27.897
(<r2>)1/2 5.282