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

using model chemistry: B2PLYP/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B2PLYP/Def2TZVPP
 hartrees
Energy at 0K-376.717387
Energy at 298.15K 
HF Energy-376.445802
Nuclear repulsion energy120.912135
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 B2PLYP/Def2TZVPP
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' 3128 3128 19.79 83.66 0.22 0.36
2 A' 3115 3115 0.03 119.43 0.32 0.48
3 A' 3050 3050 22.09 228.32 0.09 0.17
4 A' 1511 1511 1.72 6.21 0.74 0.85
5 A' 1492 1492 1.15 6.64 0.71 0.83
6 A' 1425 1425 4.02 1.74 0.73 0.84
7 A' 1249 1249 75.49 15.27 0.35 0.52
8 A' 1074 1074 0.12 3.88 0.40 0.57
9 A' 979 979 12.00 4.08 0.67 0.81
10 A' 515 515 6.97 27.79 0.25 0.40
11 A' 259 259 0.89 3.53 0.34 0.51
12 A" 3187 3187 4.68 34.69 0.75 0.86
13 A" 3144 3144 8.15 64.84 0.75 0.86
14 A" 1499 1499 10.24 7.82 0.75 0.86
15 A" 1271 1271 0.31 0.92 0.75 0.86
16 A" 1003 1003 0.38 2.21 0.75 0.86
17 A" 754 754 4.64 0.07 0.75 0.86
18 A" 259 259 0.00 0.06 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 14456.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 14456.8 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 B2PLYP/Def2TZVPP
ABC
0.98651 0.09877 0.09289

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/Def2TZVPP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.607 -1.436 0.000
C2 -0.578 -2.377 0.000
I3 0.000 0.638 0.000
H4 1.224 -1.542 0.885
H5 1.224 -1.542 -0.885
H6 -0.219 -3.408 0.000
H7 -1.199 -2.233 0.881
H8 -1.199 -2.233 -0.881

Atom - Atom Distances (Å)
  C1 C2 I3 H4 H5 H6 H7 H8
C11.51342.16151.08411.08412.13822.16192.1619
C21.51343.07052.17472.17471.09191.08761.0876
I32.16153.07052.65242.65244.05263.23433.2343
H41.08412.17472.65241.76982.51982.51983.0772
H51.08412.17472.65241.76982.51983.07722.5198
H62.13821.09194.05262.51982.51981.76581.7658
H72.16191.08763.23432.51983.07721.76581.7627
H82.16191.08763.23433.07722.51981.76581.7627

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 109.246 C1 C2 H7 111.386
C1 C2 H8 111.386 C2 C1 I3 112.142
C2 C1 H4 112.657 C2 C1 H5 112.657
I3 C1 H4 104.688 I3 C1 H5 104.688
H4 C1 H5 109.427 H6 C2 H7 108.226
H6 C2 H8 108.226 H7 C2 H8 108.266
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.230      
2 C -0.235      
3 I -0.088      
4 H 0.136      
5 H 0.136      
6 H 0.088      
7 H 0.096      
8 H 0.096      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.379 -1.977 0.000 2.013
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -41.160 -1.309 0.002
y -1.309 -37.319 0.024
z 0.002 0.024 -41.429
Traceless
 xyz
x -1.786 -1.309 0.002
y -1.309 3.975 0.024
z 0.002 0.024 -2.189
Polar
3z2-r2-4.379
x2-y2-3.841
xy-1.309
xz0.002
yz0.024


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.073 -0.216 -0.001
y -0.216 10.988 0.000
z -0.001 0.000 6.643


<r2> (average value of r2) Å2
<r2> 121.034
(<r2>)1/2 11.002