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

using model chemistry: B97D3/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B97D3/3-21G
 hartrees
Energy at 0K-6973.270608
Energy at 298.15K 
HF Energy-6973.270608
Nuclear repulsion energy209.441229
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 B97D3/3-21G
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' 3076 3024 24.90 66.52 0.11 0.19
2 A' 3060 3008 0.88 121.83 0.43 0.60
3 A' 2988 2937 19.87 209.42 0.15 0.26
4 A' 1537 1511 3.75 19.32 0.71 0.83
5 A' 1504 1479 3.83 15.57 0.75 0.86
6 A' 1437 1412 6.81 10.74 0.59 0.74
7 A' 1248 1227 87.04 11.19 0.49 0.66
8 A' 1053 1035 1.82 8.93 0.72 0.84
9 A' 957 941 22.07 7.32 0.67 0.80
10 A' 479 470 10.12 28.70 0.37 0.54
11 A' 255 250 2.30 5.70 0.49 0.65
12 A" 3143 3090 12.23 37.20 0.75 0.86
13 A" 3091 3039 9.31 76.15 0.75 0.86
14 A" 1524 1498 10.10 24.51 0.75 0.86
15 A" 1275 1253 0.90 5.90 0.75 0.86
16 A" 1008 991 0.06 11.13 0.75 0.86
17 A" 760 747 9.54 2.26 0.75 0.86
18 A" 258 254 0.01 0.02 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 14326.9 cm-1
Scaled (by 0.983) Zero Point Vibrational Energy (zpe) 14083.3 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 B97D3/3-21G
ABC
0.94893 0.09366 0.08813

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.623 -1.499 0.000
C2 -0.592 -2.430 0.000
I3 0.000 0.657 0.000
H4 1.238 -1.608 0.898
H5 1.238 -1.608 -0.898
H6 -0.239 -3.475 0.000
H7 -1.211 -2.270 0.893
H8 -1.211 -2.270 -0.893

Atom - Atom Distances (Å)
  C1 C2 I3 H4 H5 H6 H7 H8
C11.53082.24351.09431.09432.15672.18072.1807
C21.53083.14272.19832.19831.10361.09791.0979
I32.24353.14272.73272.73274.13903.29053.2905
H41.09432.19832.73271.79682.54522.53723.1056
H51.09432.19832.73271.79682.54523.10562.5372
H62.15671.10364.13902.54522.54521.78741.7874
H72.18071.09793.29052.53723.10561.78741.7850
H82.18071.09793.29053.10562.53721.78741.7850

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 108.820 C1 C2 H7 111.036
C1 C2 H8 111.036 C2 C1 I3 111.342
C2 C1 H4 112.676 C2 C1 H5 112.676
I3 C1 H4 104.594 I3 C1 H5 104.594
H4 C1 H5 110.367 H6 C2 H7 108.562
H6 C2 H8 108.562 H7 C2 H8 108.760
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.628      
2 C -0.584      
3 I 0.052      
4 H 0.251      
5 H 0.251      
6 H 0.213      
7 H 0.222      
8 H 0.222      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.401 -2.153 0.000 2.190
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -41.838 -1.145 0.000
y -1.145 -37.927 0.000
z 0.000 0.000 -42.263
Traceless
 xyz
x -1.743 -1.145 0.000
y -1.145 4.124 0.000
z 0.000 0.000 -2.380
Polar
3z2-r2-4.761
x2-y2-3.912
xy-1.145
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.313 -0.557 0.000
y -0.557 9.077 0.000
z 0.000 0.000 3.957


<r2> (average value of r2) Å2
<r2> 138.404
(<r2>)1/2 11.765