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

using model chemistry: B1B95/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B1B95/6-311G*
 hartrees
Energy at 0K-6999.493053
Energy at 298.15K 
HF Energy-6999.493053
Nuclear repulsion energy214.702487
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 B1B95/6-311G*
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' 3140 3010 26.13 81.23 0.26 0.41
2 A' 3126 2997 0.04 124.74 0.38 0.55
3 A' 3059 2932 26.36 207.82 0.11 0.20
4 A' 1517 1454 2.94 10.01 0.75 0.86
5 A' 1496 1434 2.11 8.62 0.69 0.81
6 A' 1425 1366 6.86 4.55 0.73 0.84
7 A' 1261 1209 81.98 11.28 0.43 0.60
8 A' 1088 1043 0.13 4.44 0.65 0.79
9 A' 985 944 15.06 5.30 0.65 0.79
10 A' 516 494 8.02 29.35 0.28 0.43
11 A' 256 246 1.33 3.13 0.41 0.58
12 A" 3199 3067 8.03 35.84 0.75 0.86
13 A" 3157 3026 10.33 79.40 0.75 0.86
14 A" 1505 1442 12.99 11.83 0.75 0.86
15 A" 1273 1220 0.60 1.98 0.75 0.86
16 A" 1015 973 0.35 4.56 0.75 0.86
17 A" 753 721 6.74 0.25 0.75 0.86
18 A" 267 256 0.00 0.04 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 14517.8 cm-1
Scaled (by 0.9586) Zero Point Vibrational Energy (zpe) 13916.8 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 B1B95/6-311G*
ABC
0.98814 0.09850 0.09267

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.605 -1.441 0.000
C2 -0.577 -2.378 0.000
I3 0.000 0.640 0.000
H4 1.226 -1.551 0.884
H5 1.226 -1.551 -0.884
H6 -0.220 -3.411 0.000
H7 -1.200 -2.237 0.882
H8 -1.200 -2.237 -0.882

Atom - Atom Distances (Å)
  C1 C2 I3 H4 H5 H6 H7 H8
C11.50802.16681.08561.08562.13572.16092.1609
C21.50803.07182.17092.17091.09331.08881.0888
I32.16683.07182.66162.66164.05653.23893.2389
H41.08562.17092.66161.76802.51562.52083.0775
H51.08562.17092.66161.76802.51563.07752.5208
H62.13571.09334.05652.51562.51561.76551.7655
H72.16091.08883.23892.52083.07751.76551.7630
H82.16091.08883.23893.07752.52081.76551.7630

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 109.334 C1 C2 H7 111.618
C1 C2 H8 111.618 C2 C1 I3 112.174
C2 C1 H4 112.628 C2 C1 H5 112.628
I3 C1 H4 104.911 I3 C1 H5 104.911
H4 C1 H5 109.027 H6 C2 H7 108.011
H6 C2 H8 108.011 H7 C2 H8 108.116
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.618      
2 C -0.634      
3 I -0.010      
4 H 0.274      
5 H 0.274      
6 H 0.228      
7 H 0.243      
8 H 0.243      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.434 -2.122 0.000 2.166
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -42.332 -1.394 0.000
y -1.394 -38.262 0.000
z 0.000 0.000 -42.667
Traceless
 xyz
x -1.868 -1.394 0.000
y -1.394 4.238 0.000
z 0.000 0.000 -2.370
Polar
3z2-r2-4.741
x2-y2-4.071
xy-1.394
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.988 -0.259 0.000
y -0.259 10.050 0.000
z 0.000 0.000 5.588


<r2> (average value of r2) Å2
<r2> 133.417
(<r2>)1/2 11.551