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All results from a given calculation for C2H5I (Ethyl iodide)

using model chemistry: wB97X-D/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at wB97X-D/STO-3G
 hartrees
Energy at 0K-6931.338147
Energy at 298.15K 
HF Energy-6931.338147
Nuclear repulsion energy214.096401
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 wB97X-D/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' 3517 3517 0.24 41.51 0.71 0.83
2 A' 3390 3390 1.21 39.02 0.13 0.23
3 A' 3350 3350 0.67 51.57 0.02 0.05
4 A' 1696 1696 1.91 7.37 0.74 0.85
5 A' 1669 1669 2.25 20.82 0.75 0.86
6 A' 1590 1590 0.93 6.87 0.62 0.77
7 A' 1425 1425 52.63 2.19 0.21 0.35
8 A' 1170 1170 2.66 5.17 0.60 0.75
9 A' 1089 1089 7.71 4.81 0.75 0.86
10 A' 647 647 5.47 20.53 0.32 0.49
11 A' 287 287 1.14 2.99 0.50 0.67
12 A" 3532 3532 0.31 11.60 0.75 0.86
13 A" 3504 3504 0.17 43.33 0.75 0.86
14 A" 1690 1690 4.22 17.81 0.75 0.86
15 A" 1396 1396 0.03 11.54 0.75 0.86
16 A" 1130 1130 1.70 5.24 0.75 0.86
17 A" 819 819 3.71 0.77 0.75 0.86
18 A" 252 252 0.10 0.07 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 16075.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 16075.5 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 wB97X-D/STO-3G
ABC
0.97922 0.09762 0.09187

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.606 -1.411 0.000
C2 -0.582 -2.404 0.000
I3 0.000 0.642 0.000
H4 1.233 -1.577 0.889
H5 1.233 -1.577 -0.889
H6 -0.194 -3.434 0.000
H7 -1.209 -2.269 0.892
H8 -1.209 -2.269 -0.892

Atom - Atom Distances (Å)
  C1 C2 I3 H4 H5 H6 H7 H8
C11.54842.14051.10051.10052.17582.19682.1968
C21.54843.10122.18352.18351.10031.09871.0987
I32.14053.10122.68962.68964.08073.27583.2758
H41.10052.18352.68961.77862.50542.53773.1005
H51.10052.18352.68961.77862.50543.10052.5377
H62.17581.10034.08072.50542.50541.78381.7838
H72.19681.09873.27582.53773.10051.78381.7842
H82.19681.09873.27583.10052.53771.78381.7842

picture of Ethyl iodide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 109.294 C1 C2 H7 111.028
C1 C2 H8 111.028 C2 C1 I3 113.456
C2 C1 H4 109.882 C2 C1 H5 109.882
I3 C1 H4 107.811 I3 C1 H5 107.811
H4 C1 H5 107.817 H6 C2 H7 108.423
H6 C2 H8 108.423 H7 C2 H8 108.569
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.213      
2 C -0.219      
3 I -0.005      
4 H 0.093      
5 H 0.093      
6 H 0.082      
7 H 0.084      
8 H 0.084      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.437 -1.825 0.000 1.877
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -39.190 -0.755 0.000
y -0.755 -37.557 0.000
z 0.000 0.000 -39.370
Traceless
 xyz
x -0.727 -0.755 0.000
y -0.755 1.724 0.000
z 0.000 0.000 -0.997
Polar
3z2-r2-1.994
x2-y2-1.634
xy-0.755
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.922 -0.555 0.000
y -0.555 4.641 0.000
z 0.000 0.000 1.745


<r2> (average value of r2) Å2
<r2> 133.113
(<r2>)1/2 11.537