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

using model chemistry: HF/aug-cc-pVQZ

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/aug-cc-pVQZ
 hartrees
Energy at 0K-78.633701
Energy at 298.15K-78.637648
HF Energy-78.633701
Nuclear repulsion energy37.074901
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/aug-cc-pVQZ
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 2968 16.81      
2 A' 3181 2890 34.02      
3 A' 3114 2829 37.95      
4 A' 1600 1454 3.73      
5 A' 1583 1438 1.92      
6 A' 1524 1384 0.12      
7 A' 1099 999 0.29      
8 A' 1068 970 0.26      
9 A' 469 426 49.80      
10 A" 3364 3057 22.08      
11 A" 3215 2920 32.82      
12 A" 1603 1456 4.53      
13 A" 1295 1177 1.69      
14 A" 862 783 0.76      
15 A" 162 148 0.27      

Unscaled Zero Point Vibrational Energy (zpe) 13702.0 cm-1
Scaled (by 0.9085) Zero Point Vibrational Energy (zpe) 12448.3 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/aug-cc-pVQZ
ABC
3.51134 0.75786 0.70444

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/aug-cc-pVQZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.015 -0.697 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 1.341 -0.917
H7 0.104 1.341 0.917

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 H6 H7
C11.49421.08861.08311.08312.23822.2382
C21.49422.14762.14102.14101.07281.0728
H31.08862.14761.74751.74752.75392.7539
H41.08312.14101.74751.75353.08482.5101
H51.08312.14101.74751.75352.51013.0848
H62.23821.07282.75393.08482.51011.8338
H72.23821.07282.75392.51013.08481.8338

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 120.479 C1 C2 H7 120.479
C2 C1 H3 111.541 C2 C1 H4 111.349
C2 C1 H5 111.349 H3 C1 H4 107.152
H3 C1 H5 107.152 H4 C1 H5 108.082
H6 C2 H7 117.452
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/aug-cc-pVQZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.725      
2 C -0.787      
3 H 0.232      
4 H 0.256      
5 H 0.256      
6 H 0.384      
7 H 0.384      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.177 -0.198 0.000 0.266
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.214 0.296 0.000
y 0.296 -14.537 0.000
z 0.000 0.000 -13.662
Traceless
 xyz
x -1.115 0.296 0.000
y 0.296 -0.099 0.000
z 0.000 0.000 1.214
Polar
3z2-r22.428
x2-y2-0.677
xy0.296
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.551 -0.019 0.000
y -0.019 4.250 0.000
z 0.000 0.000 3.710


<r2> (average value of r2) Å2
<r2> 27.716
(<r2>)1/2 5.265