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

using model chemistry: mPW1PW91/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 mPW1PW91/cc-pVTZ-PP
 hartrees
Energy at 0K-375.067853
Energy at 298.15K 
HF Energy-375.067853
Nuclear repulsion energy121.036837
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 mPW1PW91/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' 3128 3128 17.33 83.05 0.19 0.32
2 A' 3114 3114 0.23 114.77 0.36 0.53
3 A' 3046 3046 21.00 233.16 0.10 0.18
4 A' 1498 1498 2.02 6.69 0.74 0.85
5 A' 1482 1482 1.51 5.38 0.72 0.84
6 A' 1413 1413 5.46 2.91 0.63 0.77
7 A' 1242 1242 72.74 14.01 0.34 0.51
8 A' 1080 1080 0.15 3.54 0.53 0.70
9 A' 979 979 14.43 4.08 0.60 0.75
10 A' 521 521 6.77 28.08 0.23 0.37
11 A' 256 256 1.08 3.80 0.30 0.47
12 A" 3188 3188 3.87 33.41 0.75 0.86
13 A" 3143 3143 7.69 65.59 0.75 0.86
14 A" 1485 1485 11.31 8.30 0.75 0.86
15 A" 1262 1262 0.32 0.77 0.75 0.86
16 A" 999 999 0.11 2.46 0.75 0.86
17 A" 750 750 5.27 0.07 0.75 0.86
18 A" 255 255 0.00 0.02 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 14420.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 14420.4 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 mPW1PW91/cc-pVTZ-PP
ABC
0.99120 0.09895 0.09310

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/cc-pVTZ-PP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.604 -1.436 0.000
C2 -0.576 -2.374 0.000
I3 0.000 0.638 0.000
H4 1.223 -1.539 0.885
H5 1.223 -1.539 -0.885
H6 -0.216 -3.406 0.000
H7 -1.198 -2.233 0.882
H8 -1.198 -2.233 -0.882

Atom - Atom Distances (Å)
  C1 C2 I3 H4 H5 H6 H7 H8
C11.50712.16011.08521.08522.13392.15892.1589
C21.50713.06622.17172.17171.09331.08861.0886
I32.16013.06622.64932.64934.04983.23343.2334
H41.08522.17172.64931.77082.51802.51873.0769
H51.08522.17172.64931.77082.51803.07692.5187
H62.13391.09334.04982.51802.51801.76621.7662
H72.15891.08863.23342.51873.07691.76621.7638
H82.15891.08863.23343.07692.51871.76621.7638

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 109.262 C1 C2 H7 111.535
C1 C2 H8 111.535 C2 C1 I3 112.246
C2 C1 H4 112.795 C2 C1 H5 112.795
I3 C1 H4 104.516 I3 C1 H5 104.516
H4 C1 H5 109.343 H6 C2 H7 108.087
H6 C2 H8 108.087 H7 C2 H8 108.215
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/cc-pVTZ-PP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.206      
2 C -0.260      
3 I -0.086      
4 H 0.121      
5 H 0.121      
6 H 0.094      
7 H 0.109      
8 H 0.109      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.387 -2.031 0.000 2.068
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -40.801 -1.273 0.000
y -1.273 -36.913 0.000
z 0.000 0.000 -41.105
Traceless
 xyz
x -1.793 -1.273 0.000
y -1.273 4.040 0.000
z 0.000 0.000 -2.247
Polar
3z2-r2-4.495
x2-y2-3.888
xy-1.273
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.087 -0.135 0.000
y -0.135 10.776 0.000
z 0.000 0.000 6.709


<r2> (average value of r2) Å2
<r2> 120.614
(<r2>)1/2 10.982