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

using model chemistry: CCD/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at CCD/3-21G
 hartrees
Energy at 0K-6966.304184
Energy at 298.15K 
HF Energy-6966.055892
Nuclear repulsion energy210.192016
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 CCD/3-21G
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' 3114 3028 23.30      
2 A' 3099 3013 1.29      
3 A' 3038 2954 16.74      
4 A' 1580 1536 2.96      
5 A' 1551 1508 5.27      
6 A' 1489 1448 5.05      
7 A' 1318 1282 66.89      
8 A' 1082 1052 2.65      
9 A' 979 952 7.63      
10 A' 516 502 3.81      
11 A' 261 254 0.66      
12 A" 3170 3082 9.89      
13 A" 3121 3034 10.03      
14 A" 1573 1529 7.87      
15 A" 1324 1287 0.39      
16 A" 1050 1021 0.00      
17 A" 774 752 7.36      
18 A" 258 251 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 14647.7 cm-1
Scaled (by 0.9723) Zero Point Vibrational Energy (zpe) 14241.9 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 CCD/3-21G
ABC
0.95874 0.09406 0.08854

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.618 -1.475 0.000
C2 -0.589 -2.435 0.000
I3 0.000 0.655 0.000
H4 1.236 -1.605 0.892
H5 1.236 -1.605 -0.892
H6 -0.225 -3.474 0.000
H7 -1.212 -2.282 0.890
H8 -1.212 -2.282 -0.890

Atom - Atom Distances (Å)
  C1 C2 I3 H4 H5 H6 H7 H8
C11.54192.21811.09311.09312.16892.18892.1889
C21.54193.14512.19462.19461.10061.09721.0972
I32.21813.14512.72572.72574.13453.29923.2992
H41.09312.19462.72571.78482.53482.53973.1029
H51.09312.19462.72571.78482.53483.10292.5397
H62.16891.10064.13452.53482.53481.78481.7848
H72.18891.09723.29922.53973.10291.78481.7807
H82.18891.09723.29923.10292.53971.78481.7807

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 109.183 C1 C2 H7 110.954
C1 C2 H8 110.954 C2 C1 I3 112.289
C2 C1 H4 111.656 C2 C1 H5 111.656
I3 C1 H4 105.728 I3 C1 H5 105.728
H4 C1 H5 109.448 H6 C2 H7 108.600
H6 C2 H8 108.600 H7 C2 H8 108.486
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability