LiCH3

Formula: CH₃Li
Molecular weight: 21.976
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Vibrational and/or electronic energy levels

State: X

Vib. sym.	No.	Approximate type of mode	cm^-1		Med.	Method	References


a₁	1	CH₃ s-stretch	2780		Ar	IR	Andrews, 1967
	2	CH₃ umbrella	1158		Ar	IR	Andrews, 1967
	3	CLi stretch	530	T	Ar	IR	Andrews, 1967
e	4	CH₃ a-stretch	2820		Ar	IR	Andrews, 1967
	5	CH₃ deformation	1387		Ar	IR	Andrews, 1967
	6	HCLi deform.	408.5		Ar	IR	Andrews, 1967

Additional references: Jacox, 2003, page 247; Grotjahn, Pesch, et al., 1997; Allen, Pesch, et al., 1998; Grotjahn, Pesch, et al., 2000

Notes

Tentative assignment or approximate value

References

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Andrews, 1967
Andrews, L., Infrared Spectrum of Methyl Lithium Monomer in Solid Argon, J. Chem. Phys., 1967, 47, 11, 4834, https://doi.org/10.1063/1.1701708 . [all data]

Jacox, 2003
Jacox, M.E., Vibrational and electronic energy levels of polyatomic transient molecules: supplement B, J. Phys. Chem. Ref. Data, 2003, 32, 1, 1-441, https://doi.org/10.1063/1.1497629 . [all data]

Grotjahn, Pesch, et al., 1997
Grotjahn, D.B.; Pesch, T.C.; Xin, J.; Ziurys, L.M., Structure of Solvent-Free, Monomeric CH, J. Am. Chem. Soc., 1997, 119, 50, 12368, https://doi.org/10.1021/ja972613q . [all data]

Allen, Pesch, et al., 1998
Allen, M.D.; Pesch, T.C.; Robinson, J.S.; Apponi, A.J.; Grotjahn, D.B.; Ziurys, L.M., The pure rotational spectrum of LiCH3(), Chem. Phys. Lett., 1998, 293, 5-6, 397, https://doi.org/10.1016/S0009-2614(98)00810-0 . [all data]

Grotjahn, Pesch, et al., 2000
Grotjahn, D.B.; Pesch, T.C.; Brewster, M.A.; Ziurys, L.M., Synthesis of CH, J. Am. Chem. Soc., 2000, 122, 19, 4735, https://doi.org/10.1021/ja993136+ . [all data]

Notes

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Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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