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

using model chemistry: M06-2X/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at M06-2X/3-21G
 hartrees
Energy at 0K-6969.689326
Energy at 298.15K 
HF Energy-6969.689326
Nuclear repulsion energy212.389006
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 M06-2X/3-21G
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' 3162 3031 11.65 73.71 0.12 0.22
2 A' 3146 3017 0.28 106.26 0.49 0.66
3 A' 3083 2956 9.86 152.06 0.09 0.17
4 A' 1566 1502 4.48 18.75 0.72 0.84
5 A' 1536 1473 7.37 15.23 0.75 0.86
6 A' 1473 1412 9.41 7.34 0.65 0.78
7 A' 1299 1245 83.31 10.95 0.48 0.64
8 A' 1090 1045 2.76 7.48 0.66 0.80
9 A' 998 957 17.48 6.57 0.74 0.85
10 A' 531 509 10.73 33.09 0.37 0.54
11 A' 270 259 1.56 4.74 0.51 0.67
12 A" 3220 3087 2.70 39.14 0.75 0.86
13 A" 3170 3039 5.28 64.93 0.75 0.86
14 A" 1556 1492 12.57 23.99 0.75 0.86
15 A" 1307 1253 0.72 7.24 0.75 0.86
16 A" 1048 1004 0.05 10.36 0.75 0.86
17 A" 779 746 9.50 1.85 0.75 0.86
18 A" 262 251 0.00 0.03 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 14748.2 cm-1
Scaled (by 0.9587) Zero Point Vibrational Energy (zpe) 14139.1 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 M06-2X/3-21G
ABC
0.95978 0.09657 0.09075

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.619 -1.462 0.000
C2 -0.589 -2.399 0.000
I3 0.000 0.646 0.000
H4 1.234 -1.584 0.890
H5 1.234 -1.584 -0.890
H6 -0.238 -3.437 0.000
H7 -1.207 -2.240 0.887
H8 -1.207 -2.240 -0.887

Atom - Atom Distances (Å)
  C1 C2 I3 H4 H5 H6 H7 H8
C11.52882.19761.08881.08882.15292.17382.1738
C21.52883.10132.18622.18621.09631.09261.0926
I32.19763.10132.70022.70024.09033.25133.2513
H41.08882.18622.70021.78102.52812.52693.0896
H51.08882.18622.70021.78102.52813.08962.5269
H62.15291.09634.09032.52812.52811.77761.7776
H72.17381.09263.25132.52693.08961.77761.7744
H82.17381.09263.25133.08962.52691.77761.7744

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 109.079 C1 C2 H7 110.953
C1 C2 H8 110.953 C2 C1 I3 111.397
C2 C1 H4 112.177 C2 C1 H5 112.177
I3 C1 H4 105.467 I3 C1 H5 105.467
H4 C1 H5 109.739 H6 C2 H7 108.603
H6 C2 H8 108.603 H7 C2 H8 108.589
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.680      
2 C -0.574      
3 I 0.077      
4 H 0.259      
5 H 0.259      
6 H 0.216      
7 H 0.221      
8 H 0.221      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.437 -2.192 0.000 2.235
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -42.361 -1.150 0.000
y -1.150 -38.751 0.000
z 0.000 0.000 -42.781
Traceless
 xyz
x -1.595 -1.150 0.000
y -1.150 3.820 0.000
z 0.000 0.000 -2.225
Polar
3z2-r2-4.450
x2-y2-3.610
xy-1.150
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.196 -0.659 0.000
y -0.659 8.728 0.000
z 0.000 0.000 3.867


<r2> (average value of r2) Å2
<r2> 135.701
(<r2>)1/2 11.649