(CH3)2Si=CHCH3

Formula: C₄H₁₀Si
Molecular weight: 86.2077
CAS Registry Number: 55395-25-0
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Vibrational and/or electronic energy levels

State: X

Vib. sym.	Approximate type of mode	cm^-1		Med.	Method	References


a'	CH stretch	3015.3	w	Ar	IR	Chapman, Chang, et al., 1976 Chedekel, Skoglund, et al., 1976 Trommer, Sander, et al., 1993
	CH stretch	2980	m	Ar	IR	Chapman, Chang, et al., 1976 Chedekel, Skoglund, et al., 1976
	CH stretch	2933.1	w m	Ar	IR	Chapman, Chang, et al., 1976 Chedekel, Skoglund, et al., 1976 Trommer, Sander, et al., 1993
	CH stretch	2869.0	w m	Ar	IR	Chapman, Chang, et al., 1976 Chedekel, Skoglund, et al., 1976 Trommer, Sander, et al., 1993
	CH₃ deform.	1465.2	w m	Ar	IR	Chapman, Chang, et al., 1976 Chedekel, Skoglund, et al., 1976 Trommer, Sander, et al., 1993
	CH₃ deform.	1378.8	w m	Ar	IR	Chapman, Chang, et al., 1976 Chedekel, Skoglund, et al., 1976 Trommer, Sander, et al., 1993
	CH bend	1314.9	w	Ar	IR	Chapman, Chang, et al., 1976 Chedekel, Skoglund, et al., 1976 Trommer, Sander, et al., 1993
	CH₃ rock	1260.2	m	Ar	IR	Chapman, Chang, et al., 1976 Chedekel, Skoglund, et al., 1976 Trommer, Sander, et al., 1993
	C-C stretch	1116.1	w	Ar	IR	Chapman, Chang, et al., 1976 Chedekel, Skoglund, et al., 1976 Trommer, Sander, et al., 1993
	Deformation	984.9	m	Ar	IR	Chapman, Chang, et al., 1976 Chedekel, Skoglund, et al., 1976 Trommer, Sander, et al., 1993
	Mixed	882.7	m s	Ar	IR	Chapman, Chang, et al., 1976 Chedekel, Skoglund, et al., 1976 Trommer, Sander, et al., 1993
	CH₃ rock	794.5	vs	Ar	IR	Chapman, Chang, et al., 1976 Chedekel, Skoglund, et al., 1976 Mal'tsev, Korolev, et al., 1980 Trommer, Sander, et al., 1993
	Mixed	771.9	w m	Ar	IR	Trommer, Sander, et al., 1993
	SiC a-stretch	712	m s	Ar	IR	Chapman, Chang, et al., 1976 Chedekel, Skoglund, et al., 1976
	SiC a-stretch	708	s	Ar	IR	Chapman, Chang, et al., 1976 Chedekel, Skoglund, et al., 1976
	SiC s-stretch	607.7	w	Ar	IR	Chapman, Chang, et al., 1976 Chedekel, Skoglund, et al., 1976 Mal'tsev, Korolev, et al., 1980 Trommer, Sander, et al., 1993
	Deformation	358	m	Ar	IR	Chapman, Chang, et al., 1976 Chedekel, Skoglund, et al., 1976
a	CH stretch	2965	m	Ar	IR	Chapman, Chang, et al., 1976 Chedekel, Skoglund, et al., 1976
	CH stretch	2901.8	w m	Ar	IR	Chapman, Chang, et al., 1976 Chedekel, Skoglund, et al., 1976 Trommer, Sander, et al., 1993
	CH stretch	2897.5	w m	Ar	IR	Chapman, Chang, et al., 1976 Chedekel, Skoglund, et al., 1976 Trommer, Sander, et al., 1993
	CH₃ deform.	1407.8	w m	Ar	IR	Chapman, Chang, et al., 1976 Chedekel, Skoglund, et al., 1976 Trommer, Sander, et al., 1993
	CH₃ rock	808		Ar	IR	Chapman, Chang, et al., 1976 Chedekel, Skoglund, et al., 1976
	CH OPLA	645.7	w m	Ar	IR	Chapman, Chang, et al., 1976 Chedekel, Skoglund, et al., 1976 Mal'tsev, Korolev, et al., 1980 Trommer, Sander, et al., 1993
	CH OPLA	644.1	w m	Ar	IR	Chapman, Chang, et al., 1976 Chedekel, Skoglund, et al., 1976 Mal'tsev, Korolev, et al., 1980 Trommer, Sander, et al., 1993

Additional references: Jacox, 1994, page 401; Jacox, 2003, page 387; Khabashesku, Kudin, et al., 1998

Notes

Weak

Medium

Strong

Very strong

References

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Chapman, Chang, et al., 1976
Chapman, O.L.; Chang, C.-C.; Kolc, J.; Jung, M.E.; Lowe, J.A.; Barton, T.J.; Tumey, M.L., 1,1,2-Trimethylsilaethylene, J. Am. Chem. Soc., 1976, 98, 24, 7844, https://doi.org/10.1021/ja00440a076 . [all data]

Chedekel, Skoglund, et al., 1976
Chedekel, M.R.; Skoglund, M.; Kreeger, R.L.; Shechter, H., Solid state chemistry. Discrete trimethysilylmethylene, J. Am. Chem. Soc., 1976, 98, 24, 7846, https://doi.org/10.1021/ja00440a077 . [all data]

Trommer, Sander, et al., 1993
Trommer, M.; Sander, W.; Patyk, A., Oxidation of methylsilenes with molecular oxygen. A matrix isolation study, J. Am. Chem. Soc., 1993, 115, 25, 11775, https://doi.org/10.1021/ja00078a016 . [all data]

Mal'tsev, Korolev, et al., 1980
Mal'tsev, A.K.; Korolev, V.A.; Khabashesku, V.N.; Nefedov, O.M., Dokl. Akad. Nauk SSSR, 1980, 251, 1166. [all data]

Jacox, 1994
Jacox, M.E., Vibrational and electronic energy levels of polyatomic transient molecules, American Chemical Society, Washington, DC, 1994, 464. [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]

Khabashesku, Kudin, et al., 1998
Khabashesku, V.N.; Kudin, K.N.; Margrave, J.L., Vibrational analysis of infrared spectra of matrix-isolated transient silenes on basis of density functional theory calculations, J. Mol. Struct., 1998, 443, 1-3, 175, https://doi.org/10.1016/S0022-2860(97)00398-0 . [all data]

Notes

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Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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