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

using model chemistry: B3LYP/LANL2DZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3LYP/LANL2DZ
 hartrees
Energy at 0K-90.599757
Energy at 298.15K 
HF Energy-90.599757
Nuclear repulsion energy59.568140
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 B3LYP/LANL2DZ
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' 3132 3010 43.48 78.79 0.30 0.46
2 A' 3118 2997 0.93 144.59 0.22 0.36
3 A' 3036 2919 28.01 216.29 0.09 0.16
4 A' 1523 1464 7.43 14.46 0.71 0.83
5 A' 1496 1438 3.85 14.64 0.69 0.82
6 A' 1442 1386 11.82 4.65 0.57 0.72
7 A' 1271 1222 76.14 13.82 0.51 0.67
8 A' 1078 1036 0.79 11.88 0.60 0.75
9 A' 995 956 26.85 6.20 0.70 0.82
10 A' 477 459 12.67 32.82 0.32 0.48
11 A' 254 244 2.49 7.01 0.56 0.72
12 A" 3206 3082 20.98 38.15 0.75 0.86
13 A" 3156 3033 16.31 71.49 0.75 0.86
14 A" 1507 1449 14.82 16.86 0.75 0.86
15 A" 1269 1219 2.78 7.70 0.75 0.86
16 A" 1016 976 0.08 6.90 0.75 0.86
17 A" 769 739 14.32 4.38 0.75 0.86
18 A" 253 243 0.08 0.28 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 14498.8 cm-1
Scaled (by 0.9612) Zero Point Vibrational Energy (zpe) 13936.3 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 B3LYP/LANL2DZ
ABC
0.96182 0.09457 0.08901

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/LANL2DZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.617 -1.479 0.000
C2 -0.587 -2.425 0.000
I3 0.000 0.653 0.000
H4 1.235 -1.582 0.894
H5 1.235 -1.582 -0.894
H6 -0.229 -3.465 0.000
H7 -1.211 -2.279 0.888
H8 -1.211 -2.279 -0.888

Atom - Atom Distances (Å)
  C1 C2 I3 H4 H5 H6 H7 H8
C11.53042.21971.09181.09182.15872.18432.1843
C21.53043.13312.19682.19681.10071.09531.0953
I32.21973.13312.70552.70554.12483.29473.2947
H41.09182.19682.70551.78882.54712.54333.1056
H51.09182.19682.70551.78882.54713.10562.5433
H62.15871.10074.12482.54712.54711.77791.7779
H72.18431.09533.29472.54333.10561.77791.7757
H82.18431.09533.29473.10562.54331.77791.7757

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 109.171 C1 C2 H7 111.510
C1 C2 H8 111.510 C2 C1 I3 112.016
C2 C1 H4 112.742 C2 C1 H5 112.742
I3 C1 H4 104.345 I3 C1 H5 104.345
H4 C1 H5 110.015 H6 C2 H7 108.115
H6 C2 H8 108.115 H7 C2 H8 108.303
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/LANL2DZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.640      
2 C -0.556      
3 I 0.020      
4 H 0.262      
5 H 0.262      
6 H 0.207      
7 H 0.223      
8 H 0.223      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.390 -2.201 0.000 2.235
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -33.944 -1.351 0.000
y -1.351 -29.725 0.000
z 0.000 0.000 -34.378
Traceless
 xyz
x -1.893 -1.351 0.000
y -1.351 4.436 0.000
z 0.000 0.000 -2.543
Polar
3z2-r2-5.086
x2-y2-4.219
xy-1.351
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.910 -0.941 0.000
y -0.941 9.590 0.000
z 0.000 0.000 3.352


<r2> (average value of r2) Å2
<r2> 112.764
(<r2>)1/2 10.619