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: CCSD(T)/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at CCSD(T)/6-311+G(3df,2p)
 hartrees
Energy at 0K-47.263142
Energy at 298.15K-47.265477
HF Energy-47.034944
Nuclear repulsion energy16.179175
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 CCSD(T)/6-311+G(3df,2p)
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 2962 2923        
2 A1 1103 1089        
3 A1 621 613        
4 E 3029 2989        
4 E 3028 2989        
5 E 1457 1438        
5 E 1456 1437        
6 E 421 416        
6 E 421 416        

Unscaled Zero Point Vibrational Energy (zpe) 7249.9 cm-1
Scaled (by 0.9869) Zero Point Vibrational Energy (zpe) 7155.0 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 CCSD(T)/6-311+G(3df,2p)
ABC
5.42234 0.74862 0.74862

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)/6-311+G(3df,2p)

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Li1 0.000 0.000 -1.596
C2 0.000 0.000 0.390
H3 0.000 1.014 0.816
H4 -0.878 -0.507 0.816
H5 0.878 -0.507 0.816

Atom - Atom Distances (Å)
  Li1 C2 H3 H4 H5
Li11.98582.61672.61672.6167
C21.98581.10011.10011.1001
H32.61671.10011.75641.7564
H42.61671.10011.75641.7564
H52.61671.10011.75641.7564

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 112.812 Li1 C2 H4 112.812
Li1 C2 H5 112.812 H3 C2 H4 105.934
H3 C2 H5 105.934 H4 C2 H5 105.934
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability