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

using model chemistry: CCD/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 CCD/6-311G**
 hartrees
Energy at 0K-6956.820753
Energy at 298.15K 
HF Energy-6956.438416
Nuclear repulsion energy119.075343
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/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 3116 2976 13.80      
2 A1 1341 1281 35.19      
3 A1 553 528 1.57      
4 E 3226 3081 2.11      
4 E 3226 3081 2.11      
5 E 1492 1425 5.24      
5 E 1492 1425 5.24      
6 E 922 881 6.83      
6 E 922 881 6.83      

Unscaled Zero Point Vibrational Energy (zpe) 8144.5 cm-1
Scaled (by 0.9551) Zero Point Vibrational Energy (zpe) 7778.8 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/6-311G**
ABC
5.21397 0.24771 0.24771

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.822
I2 0.000 0.000 0.329
H3 0.000 1.034 -2.162
H4 0.896 -0.517 -2.162
H5 -0.896 -0.517 -2.162

Atom - Atom Distances (Å)
  C1 I2 H3 H4 H5
C12.15101.08841.08841.0884
I22.15102.69652.69652.6965
H31.08842.69651.79111.7911
H41.08842.69651.79111.7911
H51.08842.69651.79111.7911

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 108.169 I2 C1 H4 108.169
I2 C1 H5 108.169 H3 C1 H4 110.741
H3 C1 H5 110.741 H4 C1 H5 110.741
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability