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

using model chemistry: MP4/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 MP4/cc-pVTZ-PP
 hartrees
Energy at 0K-373.961593
Energy at 298.15K 
HF Energy-373.339642
Nuclear repulsion energy121.033673
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 MP4/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' 3116 3116        
2 A' 3096 3096        
3 A' 3036 3036        
4 A' 1502 1502        
5 A' 1478 1478        
6 A' 1410 1410        
7 A' 1249 1249        
8 A' 1073 1073        
9 A' 977 977        
10 A' 531 531        
11 A' 259 259        
12 A" 3165 3165        
13 A" 3131 3131        
14 A" 1493 1493        
15 A" 1263 1263        
16 A" 998 998        
17 A" 746 746        
18 A" 262 262        

Unscaled Zero Point Vibrational Energy (zpe) 14391.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 14391.3 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 MP4/cc-pVTZ-PP
ABC
0.97644 0.09945 0.09342

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/cc-pVTZ-PP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.611 -1.429 0.000
C2 -0.582 -2.369 0.000
I3 0.000 0.636 0.000
H4 1.230 -1.546 0.887
H5 1.230 -1.546 -0.887
H6 -0.231 -3.405 0.000
H7 -1.203 -2.215 0.883
H8 -1.203 -2.215 -0.883

Atom - Atom Distances (Å)
  C1 C2 I3 H4 H5 H6 H7 H8
C11.51882.15421.08771.08772.14802.16532.1653
C21.51883.06112.17892.17891.09391.09051.0905
I32.15423.06112.65712.65714.04813.21843.2184
H41.08772.17892.65711.77422.52592.52323.0823
H51.08772.17892.65711.77422.52593.08232.5232
H62.14801.09394.04812.52592.52591.77201.7720
H72.16531.09053.21842.52323.08231.77201.7666
H82.16531.09053.21843.08232.52321.77201.7666

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 109.522 C1 C2 H7 111.101
C1 C2 H8 111.101 C2 C1 I3 111.734
C2 C1 H4 112.381 C2 C1 H5 112.381
I3 C1 H4 105.297 I3 C1 H5 105.297
H4 C1 H5 109.280 H6 C2 H7 108.425
H6 C2 H8 108.425 H7 C2 H8 108.184
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability