H2CCHSiH

Formula: C₂H₄Si
Molecular weight: 56.1387
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Vibrational and/or electronic energy levels

State: X

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


a'	1	CH₂ stretch	3056.1	w	Ar	IR	Maier, Reisenauer, et al.
	2	CH stretch	2997.0	w	Ar	IR	Maier, Reisenauer, et al.
	3	CH stretch	2976.5	w	Ar	IR	Maier, Reisenauer, et al.
	4	SiH stretch	1979.4	vs	Ar	IR	Maier, Reisenauer, et al.
	5	Mixed	1566.9	w	Ar	IR	Maier, Reisenauer, et al.
	6	CH₂ deform.	1388.2	w m	Ar	IR	Maier, Reisenauer, et al.
	8	CH₂ deform.	1004.8	w	Ar	IR	Maier, Reisenauer, et al.
	9	Deform.	812.7	w m	Ar	IR	Maier, Reisenauer, et al.
	10	Deform.	665.2	w m	Ar	IR	Maier, Reisenauer, et al.
a	12	CH deform.	1009.3	w	Ar	IR	Maier, Reisenauer, et al.
	13	CH₂ deform.	985.2	w m	Ar	IR	Maier, Reisenauer, et al.

Additional references: Jacox, 2003, page 336

Notes

Weak

Medium

Very strong

References

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Maier, Reisenauer, et al.
Maier, G.; Reisenauer, H.P.; Egenolf, H.; Glatthaar, J., Eur. J. Org. Chem. 1998, 1307.. [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]

Notes

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Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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