return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
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All results from a given calculation for CH3Li (methyl lithium)

using model chemistry: B2PLYP=FULLultrafine/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at B2PLYP=FULLultrafine/6-31+G**
 hartrees
Energy at 0K-47.330364
Energy at 298.15K 
HF Energy-47.272586
Nuclear repulsion energy16.186550
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 B2PLYP=FULLultrafine/6-31+G**
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 3013 3013 97.49      
2 A1 1107 1107 3.51      
3 A1 620 620 26.03      
4 E 3092 3092 46.11      
4 E 3092 3092 46.11      
5 E 1477 1477 1.42      
5 E 1477 1477 1.42      
6 E 469 469 167.47      
6 E 469 469 167.46      

Unscaled Zero Point Vibrational Energy (zpe) 7407.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 7407.7 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 B2PLYP=FULLultrafine/6-31+G**
ABC
5.37932 0.74772 0.74772

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULLultrafine/6-31+G**

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 0.395
H3 0.000 1.018 0.806
H4 -0.882 -0.509 0.806
H5 0.882 -0.509 0.806

Atom - Atom Distances (Å)
  Li1 C2 H3 H4 H5
Li11.99142.60872.60872.6087
C21.99141.09771.09771.0977
H32.60871.09771.76341.7634
H42.60871.09771.76341.7634
H52.60871.09771.76341.7634

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 111.957 Li1 C2 H4 111.957
Li1 C2 H5 111.957 H3 C2 H4 106.875
H3 C2 H5 106.875 H4 C2 H5 106.875
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability