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

using model chemistry: TPSSh/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at TPSSh/6-311G*
 hartrees
Energy at 0K-6998.425298
Energy at 298.15K 
HF Energy-6998.425298
Nuclear repulsion energy212.758654
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 TPSSh/6-311G*
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' 3110 2995 28.62 81.40 0.10 0.18
2 A' 3094 2981 2.93 123.99 0.49 0.66
3 A' 3026 2914 31.41 230.98 0.14 0.24
4 A' 1528 1471 2.27 10.15 0.74 0.85
5 A' 1503 1448 1.38 8.85 0.69 0.82
6 A' 1430 1377 4.14 4.55 0.71 0.83
7 A' 1253 1207 95.64 11.61 0.42 0.59
8 A' 1072 1033 0.13 4.92 0.64 0.78
9 A' 971 935 15.42 5.43 0.67 0.80
10 A' 491 473 10.02 29.67 0.28 0.43
11 A' 250 241 1.68 3.69 0.41 0.58
12 A" 3172 3055 11.02 38.86 0.75 0.86
13 A" 3124 3009 13.68 78.28 0.75 0.86
14 A" 1514 1458 10.94 12.28 0.75 0.86
15 A" 1274 1227 0.45 2.02 0.75 0.86
16 A" 1006 969 0.45 4.67 0.75 0.86
17 A" 748 720 5.86 0.30 0.75 0.86
18 A" 262 252 0.01 0.05 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 14413.3 cm-1
Scaled (by 0.9632) Zero Point Vibrational Energy (zpe) 13882.9 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 TPSSh/6-311G*
ABC
0.97727 0.09656 0.09088

See section I.F.4 to change rotational constant units
Geometric Data calculated at TPSSh/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.610 -1.460 0.000
C2 -0.581 -2.401 0.000
I3 0.000 0.646 0.000
H4 1.229 -1.563 0.889
H5 1.229 -1.563 -0.889
H6 -0.218 -3.435 0.000
H7 -1.204 -2.260 0.885
H8 -1.204 -2.260 -0.885

Atom - Atom Distances (Å)
  C1 C2 I3 H4 H5 H6 H7 H8
C11.51752.19271.08791.08792.14142.17092.1709
C21.51753.10162.18372.18371.09681.09151.0915
I32.19273.10162.67912.67914.08723.26753.2675
H41.08792.18372.67911.77722.52772.53093.0906
H51.08792.18372.67911.77722.52773.09062.5309
H62.14141.09684.08722.52772.52771.77181.7718
H72.17091.09153.26752.53093.09061.77181.7704
H82.17091.09153.26753.09062.53091.77181.7704

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 108.933 C1 C2 H7 111.580
C1 C2 H8 111.580 C2 C1 I3 112.154
C2 C1 H4 112.855 C2 C1 H5 112.855
I3 C1 H4 104.398 I3 C1 H5 104.398
H4 C1 H5 109.529 H6 C2 H7 108.124
H6 C2 H8 108.124 H7 C2 H8 108.382
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.576      
2 C -0.590      
3 I -0.031      
4 H 0.262      
5 H 0.262      
6 H 0.215      
7 H 0.230      
8 H 0.230      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.444 -2.241 0.000 2.284
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.017 -0.263 0.000
y -0.263 10.288 0.000
z 0.000 0.000 5.604


<r2> (average value of r2) Å2
<r2> 135.451
(<r2>)1/2 11.638