return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for CH3Li (methyl lithium)

using model chemistry: MP2/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at MP2/6-31G**
 hartrees
Energy at 0K-47.187757
Energy at 298.15K-47.190210
HF Energy-47.020956
Nuclear repulsion energy16.174035
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 MP2/6-31G**
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 3086 2890 54.70      
2 A1 1144 1072 33.10      
3 A1 620 581 18.73      
4 E 3182 2980 40.72      
4 E 3182 2980 40.72      
5 E 1518 1422 9.54      
5 E 1518 1422 9.54      
6 E 491 460 217.69      
6 E 491 460 217.69      

Unscaled Zero Point Vibrational Energy (zpe) 7615.7 cm-1
Scaled (by 0.9365) Zero Point Vibrational Energy (zpe) 7132.1 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 MP2/6-31G**
ABC
5.42515 0.73675 0.73675

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31G**

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Li1 0.000 0.000 -1.609
C2 0.000 0.000 0.400
H3 0.000 1.014 0.809
H4 -0.878 -0.507 0.809
H5 0.878 -0.507 0.809

Atom - Atom Distances (Å)
  Li1 C2 H3 H4 H5
Li12.00932.62232.62232.6223
C22.00931.09321.09321.0932
H32.62231.09321.75591.7559
H42.62231.09321.75591.7559
H52.62231.09321.75591.7559

picture of methyl lithium state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Li1 C2 H3 111.975 Li1 C2 H4 111.975
Li1 C2 H5 111.975 H3 C2 H4 106.856
H3 C2 H5 106.856 H4 C2 H5 106.856
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability