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)/cc-pVTZ

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)/cc-pVTZ
 hartrees
Energy at 0K-47.267714
Energy at 298.15K-47.270065
HF Energy-47.036376
Nuclear repulsion energy16.194851
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)/cc-pVTZ
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 2963 2888        
2 A1 1104 1077        
3 A1 630 614        
4 E 3030 2953        
4 E 3030 2953        
5 E 1453 1416        
5 E 1452 1416        
6 E 427 416        
6 E 427 416        

Unscaled Zero Point Vibrational Energy (zpe) 7257.4 cm-1
Scaled (by 0.9748) Zero Point Vibrational Energy (zpe) 7074.5 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)/cc-pVTZ
ABC
5.44324 0.75036 0.75036

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)/cc-pVTZ

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Li1 0.000 0.000 -1.594
C2 0.000 0.000 0.388
H3 0.000 1.012 0.818
H4 -0.876 -0.506 0.818
H5 0.876 -0.506 0.818

Atom - Atom Distances (Å)
  Li1 C2 H3 H4 H5
Li11.98262.61572.61572.6157
C21.98261.09941.09941.0994
H32.61571.09941.75301.7530
H42.61571.09941.75301.7530
H52.61571.09941.75301.7530

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 112.988 Li1 C2 H4 112.988
Li1 C2 H5 112.988 H3 C2 H4 105.737
H3 C2 H5 105.737 H4 C2 H5 105.737
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability