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

using model chemistry: ROHF/6-31G**

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**
 hartrees
Energy at 0K-78.601262
Energy at 298.15K-78.605325
HF Energy-78.601262
Nuclear repulsion energy37.008355
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**
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' 3299 2819 21.21      
2 A' 3215 2748 42.82      
3 A' 3153 2695 37.51      
4 A' 1615 1380 3.05      
5 A' 1603 1370 2.23      
6 A' 1539 1315 0.05      
7 A' 1116 954 0.24      
8 A' 1079 922 0.11      
9 A' 540 462 38.56      
10 A" 3398 2904 30.34      
11 A" 3248 2775 35.76      
12 A" 1618 1383 3.03      
13 A" 1309 1119 1.99      
14 A" 870 743 0.91      
15 A" 204 174 1.01      

Unscaled Zero Point Vibrational Energy (zpe) 13903.1 cm-1
Scaled (by 0.8546) Zero Point Vibrational Energy (zpe) 11881.6 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**
ABC
3.48428 0.75532 0.70349

See section I.F.4 to change rotational constant units
Geometric Data calculated at ROHF/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.023 -0.697 0.000
C2 -0.023 0.800 0.000
H3 0.990 -1.101 0.000
H4 -0.525 -1.091 0.878
H5 -0.525 -1.091 -0.878
H6 0.165 1.333 -0.915
H7 0.165 1.333 0.915

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 H6 H7
C11.49751.09021.08561.08562.23492.2349
C21.49752.15392.14502.14501.07531.0753
H31.09022.15391.75141.75142.72782.7278
H41.08562.14501.75141.75603.09342.5210
H51.08562.14501.75141.75602.52103.0934
H62.23491.07532.72783.09342.52101.8299
H72.23491.07532.72782.52103.09341.8299

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 119.705 C1 C2 H7 119.705
C2 C1 H3 111.714 C2 C1 H4 111.277
C2 C1 H5 111.277 H3 C1 H4 107.203
H3 C1 H5 107.203 H4 C1 H5 107.948
H6 C2 H7 116.605
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at ROHF/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.353      
2 C -0.246      
3 H 0.119      
4 H 0.121      
5 H 0.121      
6 H 0.119      
7 H 0.119      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.241 -0.148 0.000 0.283
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.987 0.391 0.000
y 0.391 -14.333 0.001
z 0.000 0.001 -13.651
Traceless
 xyz
x -0.994 0.391 0.000
y 0.391 -0.014 0.001
z 0.000 0.001 1.009
Polar
3z2-r22.017
x2-y2-0.654
xy0.391
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> 27.662
(<r2>)1/2 5.259