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

using model chemistry: HSEh1PBE/cc-pVTZ-PP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HSEh1PBE/cc-pVTZ-PP
 hartrees
Energy at 0K-374.881539
Energy at 298.15K 
HF Energy-374.881539
Nuclear repulsion energy120.981647
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 HSEh1PBE/cc-pVTZ-PP
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' 3122 3122 16.96 84.45 0.20 0.33
2 A' 3108 3108 0.20 117.05 0.36 0.53
3 A' 3040 3040 20.88 238.87 0.10 0.19
4 A' 1492 1492 2.11 6.79 0.74 0.85
5 A' 1477 1477 1.56 5.40 0.73 0.84
6 A' 1407 1407 5.93 2.99 0.63 0.77
7 A' 1237 1237 71.45 14.08 0.35 0.51
8 A' 1080 1080 0.19 3.57 0.55 0.71
9 A' 977 977 14.55 4.16 0.59 0.74
10 A' 519 519 6.62 27.86 0.23 0.37
11 A' 256 256 1.09 3.83 0.30 0.47
12 A" 3182 3182 3.75 33.71 0.75 0.86
13 A" 3137 3137 7.52 67.02 0.75 0.86
14 A" 1478 1478 11.76 8.29 0.75 0.86
15 A" 1258 1258 0.31 0.72 0.75 0.86
16 A" 995 995 0.10 2.53 0.75 0.86
17 A" 748 748 5.31 0.07 0.75 0.86
18 A" 257 257 0.00 0.03 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 14384.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 14384.4 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 HSEh1PBE/cc-pVTZ-PP
ABC
0.98937 0.09891 0.09305

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/cc-pVTZ-PP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.604 -1.438 0.000
C2 -0.576 -2.373 0.000
I3 0.000 0.638 0.000
H4 1.224 -1.541 0.886
H5 1.224 -1.541 -0.886
H6 -0.218 -3.408 0.000
H7 -1.199 -2.231 0.883
H8 -1.199 -2.231 -0.883

Atom - Atom Distances (Å)
  C1 C2 I3 H4 H5 H6 H7 H8
C11.50662.16181.08651.08652.13492.15932.1593
C21.50663.06622.17252.17251.09451.08981.0898
I32.16183.06622.65192.65194.05163.23283.2328
H41.08652.17252.65191.77272.51992.51993.0789
H51.08652.17252.65191.77272.51993.07892.5199
H62.13491.09454.05162.51992.51991.76811.7681
H72.15931.08983.23282.51993.07891.76811.7655
H82.15931.08983.23283.07892.51991.76811.7655

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 109.301 C1 C2 H7 111.533
C1 C2 H8 111.533 C2 C1 I3 112.171
C2 C1 H4 112.821 C2 C1 H5 112.821
I3 C1 H4 104.529 I3 C1 H5 104.529
H4 C1 H5 109.337 H6 C2 H7 108.083
H6 C2 H8 108.083 H7 C2 H8 108.185
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/cc-pVTZ-PP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.230      
2 C -0.289      
3 I -0.081      
4 H 0.130      
5 H 0.130      
6 H 0.105      
7 H 0.117      
8 H 0.117      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.388 -2.020 0.000 2.056
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -40.962 -1.280 0.000
y -1.280 -37.061 0.000
z 0.000 0.000 -41.261
Traceless
 xyz
x -1.801 -1.280 0.000
y -1.280 4.050 0.000
z 0.000 0.000 -2.250
Polar
3z2-r2-4.499
x2-y2-3.901
xy-1.280
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.120 -0.130 0.000
y -0.130 10.835 0.000
z 0.000 0.000 6.740


<r2> (average value of r2) Å2
<r2> 120.765
(<r2>)1/2 10.989