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

using model chemistry: HF/daug-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/daug-cc-pVTZ
 hartrees
Energy at 0K-78.628991
Energy at 298.15K-78.632930
HF Energy-78.628991
Nuclear repulsion energy37.058069
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/daug-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' 3267 2955 16.80      
2 A' 3181 2877 34.02      
3 A' 3113 2816 38.01      
4 A' 1600 1447 3.78      
5 A' 1583 1432 1.86      
6 A' 1523 1378 0.11      
7 A' 1099 994 0.30      
8 A' 1068 966 0.25      
9 A' 468 423 49.86      
10 A" 3364 3043 22.12      
11 A" 3215 2908 32.74      
12 A" 1602 1450 4.52      
13 A" 1295 1171 1.69      
14 A" 861 779 0.76      
15 A" 162 147 0.27      

Unscaled Zero Point Vibrational Energy (zpe) 13699.8 cm-1
Scaled (by 0.9046) Zero Point Vibrational Energy (zpe) 12392.9 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/daug-cc-pVTZ
ABC
3.50805 0.75717 0.70381

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/daug-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 -1.097 0.000
H4 -0.514 -1.092 0.877
H5 -0.514 -1.092 -0.877
H6 0.104 1.342 -0.917
H7 0.104 1.342 0.917

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 H6 H7
C11.49491.08921.08361.08362.23942.2394
C21.49492.14832.14182.14181.07331.0733
H31.08922.14831.74851.74852.75512.7551
H41.08362.14181.74851.75453.08622.5113
H51.08362.14181.74851.75452.51133.0862
H62.23941.07332.75513.08622.51131.8343
H72.23941.07332.75512.51133.08621.8343

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 120.496 C1 C2 H7 120.496
C2 C1 H3 111.519 C2 C1 H4 111.333
C2 C1 H5 111.333 H3 C1 H4 107.167
H3 C1 H5 107.167 H4 C1 H5 108.107
H6 C2 H7 117.419
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/daug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.604      
2 C -1.763      
3 H 0.395      
4 H 0.437      
5 H 0.437      
6 H 0.549      
7 H 0.549      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.177 -0.199 0.000 0.266
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.223 0.297 0.000
y 0.297 -14.543 0.000
z 0.000 0.000 -13.669
Traceless
 xyz
x -1.117 0.297 0.000
y 0.297 -0.097 0.000
z 0.000 0.000 1.214
Polar
3z2-r22.429
x2-y2-0.680
xy0.297
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.558 -0.019 0.000
y -0.019 4.257 0.000
z 0.000 0.000 3.716


<r2> (average value of r2) Å2
<r2> 27.737
(<r2>)1/2 5.267