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All results from a given calculation for CH3I (methyl iodide)

using model chemistry: CISD/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at CISD/6-311G**
 hartrees
Energy at 0K-6956.786687
Energy at 298.15K 
HF Energy-6956.438576
Nuclear repulsion energy119.366891
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 CISD/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 A1 3166 3166 14.78      
2 A1 1360 1360 40.29      
3 A1 559 559 3.04      
4 E 3278 3278 1.74      
4 E 3278 3278 1.74      
5 E 1518 1518 5.72      
5 E 1518 1518 5.72      
6 E 939 939 6.93      
6 E 939 939 6.93      

Unscaled Zero Point Vibrational Energy (zpe) 8277.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 8277.4 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 CISD/6-311G**
ABC
5.25254 0.24883 0.24883

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.819
I2 0.000 0.000 0.328
H3 0.000 1.030 -2.155
H4 0.892 -0.515 -2.155
H5 -0.892 -0.515 -2.155

Atom - Atom Distances (Å)
  C1 I2 H3 H4 H5
C12.14681.08361.08361.0836
I22.14682.68792.68792.6879
H31.08362.68791.78451.7845
H41.08362.68791.78451.7845
H51.08362.68791.78451.7845

picture of methyl iodide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
I2 C1 H3 108.052 I2 C1 H4 108.052
I2 C1 H5 108.052 H3 C1 H4 110.852
H3 C1 H5 110.852 H4 C1 H5 110.852
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability