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: QCISD/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 QCISD/6-31G*
 hartrees
Energy at 0K-47.180525
Energy at 298.15K-47.182975
HF Energy-47.015335
Nuclear repulsion energy16.080923
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 QCISD/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1 3001 2858 75.03      
2 A1 1160 1105 43.84      
3 A1 615 586 14.24      
4 E 3078 2932 50.04      
4 E 3078 2932 50.04      
5 E 1515 1442 7.33      
5 E 1515 1442 7.33      
6 E 494 471 226.65      
6 E 494 471 226.65      

Unscaled Zero Point Vibrational Energy (zpe) 7475.2 cm-1
Scaled (by 0.9523) Zero Point Vibrational Energy (zpe) 7118.6 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 QCISD/6-31G*
ABC
5.34474 0.73263 0.73263

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Li1 0.000 0.000 -1.613
C2 0.000 0.000 0.400
H3 0.000 1.021 0.814
H4 -0.885 -0.511 0.814
H5 0.885 -0.511 0.814

Atom - Atom Distances (Å)
  Li1 C2 H3 H4 H5
Li12.01312.63322.63322.6332
C22.01311.10201.10201.1020
H32.63321.10201.76911.7691
H42.63321.10201.76911.7691
H52.63321.10201.76911.7691

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 112.058 Li1 C2 H4 112.058
Li1 C2 H5 112.058 H3 C2 H4 106.765
H3 C2 H5 106.765 H4 C2 H5 106.765
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability