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

using model chemistry: B1B95/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 B1B95/Def2TZVPP
 hartrees
Energy at 0K-376.932751
Energy at 298.15K 
HF Energy-376.932751
Nuclear repulsion energy121.558283
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/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' 3135 3135 18.43 88.39 0.26 0.42
2 A' 3122 3122 0.08 122.18 0.29 0.45
3 A' 3055 3055 22.09 239.32 0.09 0.17
4 A' 1497 1497 2.01 6.53 0.74 0.85
5 A' 1480 1480 1.38 6.15 0.73 0.84
6 A' 1410 1410 4.97 2.64 0.69 0.82
7 A' 1238 1238 70.50 15.26 0.34 0.51
8 A' 1079 1079 0.16 3.89 0.48 0.65
9 A' 977 977 13.00 3.90 0.59 0.74
10 A' 524 524 6.26 27.92 0.24 0.39
11 A' 253 253 0.96 3.15 0.35 0.52
12 A" 3194 3194 4.28 34.23 0.75 0.86
13 A" 3151 3151 7.64 67.69 0.75 0.86
14 A" 1484 1484 11.19 7.93 0.75 0.86
15 A" 1259 1259 0.34 0.93 0.75 0.86
16 A" 996 996 0.24 2.22 0.75 0.86
17 A" 746 746 5.15 0.06 0.75 0.86
18 A" 255 255 0.00 0.07 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 14427.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 14427.7 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/Def2TZVPP
ABC
0.99203 0.10011 0.09411

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/Def2TZVPP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.604 -1.426 0.000
C2 -0.576 -2.361 0.000
I3 0.000 0.634 0.000
H4 1.222 -1.532 0.883
H5 1.222 -1.532 -0.883
H6 -0.221 -3.392 0.000
H7 -1.197 -2.217 0.880
H8 -1.197 -2.217 -0.880

Atom - Atom Distances (Å)
  C1 C2 I3 H4 H5 H6 H7 H8
C11.50562.14681.08351.08352.13242.15502.1550
C21.50563.04962.16832.16831.09101.08671.0867
I32.14683.04962.63952.63954.03233.21463.2146
H41.08352.16832.63951.76692.51482.51443.0712
H51.08352.16832.63951.76692.51483.07122.5144
H62.13241.09104.03232.51482.51481.76341.7634
H72.15501.08673.21462.51443.07121.76341.7604
H82.15501.08673.21463.07122.51441.76341.7604

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 109.380 C1 C2 H7 111.446
C1 C2 H8 111.446 C2 C1 I3 112.027
C2 C1 H4 112.736 C2 C1 H5 112.736
I3 C1 H4 104.748 I3 C1 H5 104.748
H4 C1 H5 109.254 H6 C2 H7 108.138
H6 C2 H8 108.138 H7 C2 H8 108.178
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.251      
2 C -0.277      
3 I -0.097      
4 H 0.153      
5 H 0.153      
6 H 0.098      
7 H 0.111      
8 H 0.111      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.376 -1.971 0.000 2.006
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -40.707 -1.288 0.000
y -1.288 -36.848 0.000
z 0.000 0.000 -41.006
Traceless
 xyz
x -1.780 -1.288 0.000
y -1.288 4.008 0.000
z 0.000 0.000 -2.228
Polar
3z2-r2-4.456
x2-y2-3.859
xy-1.288
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.122 -0.184 0.000
y -0.184 10.996 0.000
z 0.000 0.000 6.689


<r2> (average value of r2) Å2
<r2> 119.589
(<r2>)1/2 10.936