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

using model chemistry: ROHF/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at ROHF/6-31G(2df,p)
 hartrees
Energy at 0K-78.604611
Energy at 298.15K-78.608712
HF Energy-78.604611
Nuclear repulsion energy37.005870
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 ROHF/6-31G(2df,p)
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' 3279 3279 19.57      
2 A' 3201 3201 38.02      
3 A' 3139 3139 34.53      
4 A' 1604 1604 2.87      
5 A' 1591 1591 1.98      
6 A' 1527 1527 0.03      
7 A' 1108 1108 0.15      
8 A' 1074 1074 0.34      
9 A' 568 568 36.24      
10 A" 3378 3378 26.70      
11 A" 3232 3232 31.74      
12 A" 1607 1607 2.90      
13 A" 1304 1304 1.91      
14 A" 862 862 0.80      
15 A" 217 217 0.98      

Unscaled Zero Point Vibrational Energy (zpe) 13845.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 13845.5 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 ROHF/6-31G(2df,p)
ABC
3.47824 0.75544 0.70389

See section I.F.4 to change rotational constant units
Geometric Data calculated at ROHF/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.024 -0.697 0.000
C2 -0.024 0.801 0.000
H3 0.989 -1.099 0.000
H4 -0.527 -1.091 0.879
H5 -0.527 -1.091 -0.879
H6 0.177 1.330 -0.914
H7 0.177 1.330 0.914

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 H6 H7
C11.49781.09051.08591.08592.23332.2333
C21.49782.15342.14502.14501.07561.0756
H31.09052.15341.75221.75222.72032.7203
H41.08592.14501.75221.75723.09372.5215
H51.08592.14501.75221.75722.52153.0937
H62.23331.07562.72033.09372.52151.8284
H72.23331.07562.72032.52153.09371.8284

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 119.516 C1 C2 H7 119.516
C2 C1 H3 111.641 C2 C1 H4 111.241
C2 C1 H5 111.241 H3 C1 H4 107.245
H3 C1 H5 107.245 H4 C1 H5 108.019
H6 C2 H7 116.402
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at ROHF/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.399      
2 C -0.304      
3 H 0.137      
4 H 0.140      
5 H 0.140      
6 H 0.143      
7 H 0.143      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.254 -0.161 0.000 0.301
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.869 0.410 0.000
y 0.410 -14.309 0.001
z 0.000 0.001 -13.547
Traceless
 xyz
x -0.941 0.410 0.000
y 0.410 -0.101 0.001
z 0.000 0.001 1.042
Polar
3z2-r22.085
x2-y2-0.560
xy0.410
xz0.000
yz0.001


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


<r2> (average value of r2) Å2
<r2> 27.603
(<r2>)1/2 5.254