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

using model chemistry: HSEh1PBE/STO-3G

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/STO-3G
 hartrees
Energy at 0K-6930.669421
Energy at 298.15K 
HF Energy-6930.669421
Nuclear repulsion energy214.194079
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/STO-3G
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' 3525 3113 0.32 43.12 0.71 0.83
2 A' 3401 3003 1.57 38.66 0.13 0.23
3 A' 3358 2965 0.62 56.50 0.03 0.05
4 A' 1694 1496 2.22 7.78 0.73 0.85
5 A' 1663 1469 1.86 19.86 0.75 0.86
6 A' 1584 1399 1.30 8.06 0.60 0.75
7 A' 1409 1244 53.47 2.20 0.31 0.47
8 A' 1174 1037 2.34 5.37 0.64 0.78
9 A' 1087 960 9.05 3.93 0.75 0.86
10 A' 621 548 5.26 18.19 0.33 0.49
11 A' 281 248 1.31 3.02 0.51 0.67
12 A" 3544 3130 0.28 10.48 0.75 0.86
13 A" 3517 3106 0.16 44.55 0.75 0.86
14 A" 1685 1488 4.67 17.63 0.75 0.86
15 A" 1392 1229 0.08 10.92 0.75 0.86
16 A" 1122 991 1.85 5.70 0.75 0.86
17 A" 814 719 4.24 0.80 0.75 0.86
18 A" 252 223 0.10 0.06 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 16060.4 cm-1
Scaled (by 0.8831) Zero Point Vibrational Energy (zpe) 14183.0 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/STO-3G
ABC
0.98024 0.09781 0.09203

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.606 -1.416 0.000
C2 -0.581 -2.399 0.000
I3 0.000 0.641 0.000
H4 1.232 -1.576 0.889
H5 1.232 -1.576 -0.889
H6 -0.201 -3.431 0.000
H7 -1.207 -2.261 0.891
H8 -1.207 -2.261 -0.891

Atom - Atom Distances (Å)
  C1 C2 I3 H4 H5 H6 H7 H8
C11.54082.14481.09951.09952.17012.18942.1894
C21.54083.09532.18072.18071.09961.09751.0975
I32.14483.09532.68842.68844.07713.26703.2670
H41.09952.18072.68841.77822.50672.53373.0964
H51.09952.18072.68841.77822.50673.09642.5337
H62.17011.09964.07712.50672.50671.78181.7818
H72.18941.09753.26702.53373.09641.78181.7816
H82.18941.09753.26703.09642.53371.78181.7816

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 109.402 C1 C2 H7 111.044
C1 C2 H8 111.044 C2 C1 I3 113.224
C2 C1 H4 110.244 C2 C1 H5 110.244
I3 C1 H4 107.503 I3 C1 H5 107.503
H4 C1 H5 107.929 H6 C2 H7 108.379
H6 C2 H8 108.379 H7 C2 H8 108.512
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.213      
2 C -0.230      
3 I -0.016      
4 H 0.098      
5 H 0.098      
6 H 0.086      
7 H 0.088      
8 H 0.088      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.445 -1.894 0.000 1.946
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -39.125 -0.781 0.000
y -0.781 -37.345 0.000
z 0.000 0.000 -39.331
Traceless
 xyz
x -0.787 -0.781 0.000
y -0.781 1.883 0.000
z 0.000 0.000 -1.096
Polar
3z2-r2-2.192
x2-y2-1.780
xy-0.781
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.907 -0.565 0.000
y -0.565 4.708 0.000
z 0.000 0.000 1.726


<r2> (average value of r2) Å2
<r2> 132.823
(<r2>)1/2 11.525