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

using model chemistry: LSDA/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at LSDA/3-21G
 hartrees
Energy at 0K-78.268468
Energy at 298.15K-78.272282
HF Energy-78.268468
Nuclear repulsion energy36.893579
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 LSDA/3-21G
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' 3096 3045 8.90      
2 A' 2990 2941 13.00      
3 A' 2873 2826 15.76      
4 A' 1476 1452 9.82      
5 A' 1448 1424 1.46      
6 A' 1391 1368 13.91      
7 A' 1087 1069 0.76      
8 A' 975 959 4.35      
9 A' 496 488 81.60      
10 A" 3202 3149 9.05      
11 A" 3044 2994 9.46      
12 A" 1485 1460 9.39      
13 A" 1181 1162 5.81      
14 A" 823 810 9.10      
15 A" 105 103 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 12834.9 cm-1
Scaled (by 0.9836) Zero Point Vibrational Energy (zpe) 12624.4 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 LSDA/3-21G
ABC
3.38876 0.76637 0.70815

See section I.F.4 to change rotational constant units
Geometric Data calculated at LSDA/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.010 -0.686 0.000
C2 -0.010 0.788 0.000
H3 1.025 -1.107 0.000
H4 -0.507 -1.100 0.897
H5 -0.507 -1.100 -0.897
H6 0.051 1.348 -0.937
H7 0.051 1.348 0.937

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 H6 H7
C11.47341.11711.10621.10622.24032.2403
C21.47342.15872.14842.14841.09361.0936
H31.11712.15871.77521.77522.80252.8025
H41.10622.14841.77521.79393.10962.5115
H51.10622.14841.77521.79392.51153.1096
H62.24031.09362.80253.10962.51151.8740
H72.24031.09362.80252.51153.10961.8740

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 120.838 C1 C2 H7 120.838
C2 C1 H3 112.152 C2 C1 H4 112.000
C2 C1 H5 112.000 H3 C1 H4 105.971
H3 C1 H5 105.971 H4 C1 H5 108.367
H6 C2 H7 117.920
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.692      
2 C -0.395      
3 H 0.230      
4 H 0.227      
5 H 0.227      
6 H 0.201      
7 H 0.201      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.143 -0.322 0.000 0.353
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.155 0.140 0.000
y 0.140 -13.722 0.000
z 0.000 0.000 -13.345
Traceless
 xyz
x -1.621 0.140 0.000
y 0.140 0.528 0.000
z 0.000 0.000 1.093
Polar
3z2-r22.185
x2-y2-1.433
xy0.140
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.178 -0.056 0.000
y -0.056 3.667 0.000
z 0.000 0.000 3.084


<r2> (average value of r2) Å2
<r2> 27.551
(<r2>)1/2 5.249