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

using model chemistry: MP2=FULL/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 MP2=FULL/cc-pVTZ-PP
 hartrees
Energy at 0K-373.964390
Energy at 298.15K 
HF Energy-373.339661
Nuclear repulsion energy122.026506
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 MP2=FULL/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' 3166 3166 14.04 78.06 0.46 0.63
2 A' 3150 3150 1.66 106.26 0.20 0.34
3 A' 3091 3091 17.96 191.33 0.07 0.13
4 A' 1522 1522 1.66 5.90 0.74 0.85
5 A' 1501 1501 1.33 6.52 0.70 0.83
6 A' 1424 1424 5.06 1.18 0.73 0.85
7 A' 1267 1267 60.05 9.70 0.36 0.53
8 A' 1095 1095 0.11 3.54 0.38 0.55
9 A' 995 995 8.74 3.61 0.68 0.81
10 A' 554 554 3.14 22.90 0.22 0.36
11 A' 265 265 0.49 2.77 0.31 0.48
12 A" 3207 3207 4.15 20.78 0.75 0.86
13 A" 3179 3179 4.49 70.83 0.75 0.86
14 A" 1515 1515 10.78 7.70 0.75 0.86
15 A" 1280 1280 0.29 0.91 0.75 0.86
16 A" 1018 1018 0.34 2.42 0.75 0.86
17 A" 760 760 4.49 0.06 0.75 0.86
18 A" 282 282 0.00 0.01 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 14634.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 14634.9 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 MP2=FULL/cc-pVTZ-PP
ABC
0.98950 0.10124 0.09507

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/cc-pVTZ-PP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.607 -1.416 0.000
C2 -0.578 -2.348 0.000
I3 0.000 0.631 0.000
H4 1.222 -1.534 0.881
H5 1.222 -1.534 -0.881
H6 -0.231 -3.379 0.000
H7 -1.195 -2.193 0.878
H8 -1.195 -2.193 -0.878

Atom - Atom Distances (Å)
  C1 C2 I3 H4 H5 H6 H7 H8
C11.50742.13481.08111.08112.13412.14972.1497
C21.50743.03392.16332.16331.08751.08411.0841
I32.13483.03392.63702.63704.01593.18943.1894
H41.08112.16332.63701.76252.50882.50533.0613
H51.08112.16332.63701.76252.50883.06132.5053
H62.13411.08754.01592.50882.50881.76171.7617
H72.14971.08413.18942.50533.06131.76171.7561
H82.14971.08413.18943.06132.50531.76171.7561

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 109.598 C1 C2 H7 111.049
C1 C2 H8 111.049 C2 C1 I3 111.655
C2 C1 H4 112.341 C2 C1 H5 112.341
I3 C1 H4 105.422 I3 C1 H5 105.422
H4 C1 H5 109.209 H6 C2 H7 108.442
H6 C2 H8 108.442 H7 C2 H8 108.181
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability