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

using model chemistry: B3LYP/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at B3LYP/STO-3G
 hartrees
Energy at 0K-78.199886
Energy at 298.15K-78.203640
HF Energy-78.199886
Nuclear repulsion energy36.457216
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 B3LYP/STO-3G
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' 3411 3044 1.89      
2 A' 3386 3021 1.48      
3 A' 3268 2916 1.46      
4 A' 1673 1493 3.79      
5 A' 1604 1431 5.36      
6 A' 1568 1400 0.09      
7 A' 1129 1007 0.19      
8 A' 1085 968 1.23      
9 A' 427 381 22.61      
10 A" 3554 3171 1.61      
11 A" 3464 3091 0.98      
12 A" 1681 1501 3.09      
13 A" 1295 1156 4.94      
14 A" 869 776 1.94      
15 A" 156 139 0.24      

Unscaled Zero Point Vibrational Energy (zpe) 14284.0 cm-1
Scaled (by 0.8924) Zero Point Vibrational Energy (zpe) 12747.1 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 B3LYP/STO-3G
ABC
3.36601 0.73573 0.68355

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.020 -0.707 0.000
C2 -0.020 0.810 0.000
H3 1.010 -1.117 0.000
H4 -0.528 -1.104 0.894
H5 -0.528 -1.104 -0.894
H6 0.141 1.355 -0.937
H7 0.141 1.355 0.937

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 H6 H7
C11.51691.10821.10221.10222.27122.2712
C21.51692.18472.17252.17251.09601.0960
H31.10822.18471.77911.77912.78332.7833
H41.10222.17251.77911.78733.13812.5493
H51.10222.17251.77911.78732.54933.1381
H62.27121.09602.78333.13812.54931.8736
H72.27121.09602.78332.54933.13811.8736

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 119.867 C1 C2 H7 119.867
C2 C1 H3 111.709 C2 C1 H4 111.102
C2 C1 H5 111.102 H3 C1 H4 107.194
H3 C1 H5 107.194 H4 C1 H5 108.348
H6 C2 H7 117.463
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.230      
2 C -0.128      
3 H 0.078      
4 H 0.078      
5 H 0.078      
6 H 0.062      
7 H 0.062      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.157 -0.165 0.000 0.228
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -13.525 0.188 0.000
y 0.188 -13.103 0.000
z 0.000 0.000 -12.751
Traceless
 xyz
x -0.598 0.188 0.000
y 0.188 0.035 0.000
z 0.000 0.000 0.563
Polar
3z2-r21.126
x2-y2-0.422
xy0.188
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.105 0.031 0.000
y 0.031 1.825 0.000
z 0.000 0.000 1.646


<r2> (average value of r2) Å2
<r2> 27.469
(<r2>)1/2 5.241