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

using model chemistry: CID/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at CID/Def2TZVPP
 hartrees
Energy at 0K-376.063322
Energy at 298.15K 
HF Energy-375.339523
Nuclear repulsion energy122.190012
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 CID/Def2TZVPP
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' 3233 3233 21.77      
2 A' 3220 3220 0.65      
3 A' 3151 3151 21.76      
4 A' 1565 1565 1.52      
5 A' 1548 1548 1.51      
6 A' 1486 1486 3.77      
7 A' 1318 1318 76.04      
8 A' 1123 1123 0.22      
9 A' 1022 1022 8.23      
10 A' 561 561 6.30      
11 A' 274 274 0.54      
12 A" 3294 3294 3.95      
13 A" 3244 3244 9.18      
14 A" 1558 1558 9.90      
15 A" 1325 1325 0.29      
16 A" 1053 1053 0.51      
17 A" 780 780 4.34      
18 A" 270 270 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 15012.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 15012.5 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 CID/Def2TZVPP
ABC
0.99984 0.10120 0.09511

See section I.F.4 to change rotational constant units
Geometric Data calculated at CID/Def2TZVPP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.603 -1.409 0.000
C2 -0.575 -2.353 0.000
I3 0.000 0.630 0.000
H4 1.217 -1.525 0.877
H5 1.217 -1.525 -0.877
H6 -0.218 -3.376 0.000
H7 -1.192 -2.209 0.876
H8 -1.192 -2.209 -0.876

Atom - Atom Distances (Å)
  C1 C2 I3 H4 H5 H6 H7 H8
C11.50932.12691.07671.07672.13132.15132.1513
C21.50933.03802.15982.15981.08421.08081.0808
I32.12693.03802.62602.62604.01263.20133.2013
H41.07672.15982.62601.75402.50072.50403.0564
H51.07672.15982.62601.75402.50073.05642.5040
H62.13131.08424.01262.50072.50071.75491.7549
H72.15131.08083.20132.50403.05641.75491.7512
H82.15131.08083.20133.05642.50401.75491.7512

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 109.437 C1 C2 H7 111.243
C1 C2 H8 111.243 C2 C1 I3 112.218
C2 C1 H4 112.189 C2 C1 H5 112.189
I3 C1 H4 105.358 I3 C1 H5 105.358
H4 C1 H5 109.081 H6 C2 H7 108.300
H6 C2 H8 108.300 H7 C2 H8 108.222
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability