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

using model chemistry: HSEh1PBE/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 HSEh1PBE/STO-3G
 hartrees
Energy at 0K-78.112072
Energy at 298.15K-78.115875
HF Energy-78.112072
Nuclear repulsion energy36.617046
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 HSEh1PBE/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' 3468 3063 0.98      
2 A' 3436 3034 1.01      
3 A' 3319 2931 1.08      
4 A' 1684 1487 4.33      
5 A' 1618 1429 4.82      
6 A' 1579 1394 0.19      
7 A' 1160 1025 0.18      
8 A' 1095 967 1.50      
9 A' 445 393 22.24      
10 A" 3605 3184 0.83      
11 A" 3519 3107 0.41      
12 A" 1693 1495 3.53      
13 A" 1307 1154 5.10      
14 A" 876 774 2.42      
15 A" 170 150 0.26      

Unscaled Zero Point Vibrational Energy (zpe) 14486.8 cm-1
Scaled (by 0.8831) Zero Point Vibrational Energy (zpe) 12793.3 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 HSEh1PBE/STO-3G
ABC
3.38383 0.74376 0.69094

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.021 -0.703 0.000
C2 -0.021 0.805 0.000
H3 1.006 -1.112 0.000
H4 -0.528 -1.099 0.891
H5 -0.528 -1.099 -0.891
H6 0.149 1.348 -0.934
H7 0.149 1.348 0.934

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 H6 H7
C11.50781.10471.09911.09912.25962.2596
C21.50782.17432.16222.16221.09321.0932
H31.10472.17431.77381.77382.76712.7671
H41.09912.16221.77381.78183.12612.5388
H51.09912.16221.77381.78182.53883.1261
H62.25961.09322.76713.12612.53881.8674
H72.25961.09322.76712.53883.12611.8674

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 119.777 C1 C2 H7 119.777
C2 C1 H3 111.736 C2 C1 H4 111.106
C2 C1 H5 111.106 H3 C1 H4 107.198
H3 C1 H5 107.198 H4 C1 H5 108.302
H6 C2 H7 117.313
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.245      
2 C -0.136      
3 H 0.082      
4 H 0.083      
5 H 0.083      
6 H 0.066      
7 H 0.066      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.163 -0.165 0.000 0.232
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -13.489 0.199 0.000
y 0.199 -13.068 0.000
z 0.000 0.000 -12.701
Traceless
 xyz
x -0.605 0.199 0.000
y 0.199 0.027 0.000
z 0.000 0.000 0.578
Polar
3z2-r21.155
x2-y2-0.421
xy0.199
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.084 0.035 0.000
y 0.035 1.763 0.000
z 0.000 0.000 1.610


<r2> (average value of r2) Å2
<r2> 27.258
(<r2>)1/2 5.221