N-Methyl methanimine

Formula: C₂H₅N
Molecular weight: 43.0678
CAS Registry Number: 1761-67-7
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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 a-stretch	3024	s	gas	IR	Stolkin, Ha, et al., 1977
	1	CH₂ a-stretch	3012	s	Ar	IR	Hinze and Curl, 1964 Stolkin, Ha, et al., 1977 Machara and Ault, 1987
	2	CH₃ a-stretch	2962	s	gas	IR	Stolkin, Ha, et al., 1977
	2	CH₃ a-stretch	2953	s	Ar	IR	Stolkin, Ha, et al., 1977
	3	CH₂ s-stretch	2897	w	gas	IR	Stolkin, Ha, et al., 1977
	3	CH₂ s-stretch	2900	s	Ar	IR	Hinze and Curl, 1964 Stolkin, Ha, et al., 1977 Machara and Ault, 1987
	4	CH₃ s-stretch	2854	s	Ar	IR	Stolkin, Ha, et al., 1977 Machara and Ault, 1987
	4	CH₃ s-stretch	2849	s	Ar	IR	Sastry and Curl, 1964
	5	C=N stretch	1661	s	gas	IR	Stolkin, Ha, et al., 1977
	5	C=N stretch	1659	m	Ar	IR	Hinze and Curl, 1964 Stolkin, Ha, et al., 1977
	6	CH₂ scissors	1475	vs	gas	IR	Stolkin, Ha, et al., 1977
	6	CH₂ scissors	1470	vs	Ar	IR	Hinze and Curl, 1964 Stolkin, Ha, et al., 1977
	7	CH₃ a-deform.	1425	w T	gas	IR	Stolkin, Ha, et al., 1977
	8	CH₃ s-deform.	1405	w	gas	IR	Stolkin, Ha, et al., 1977
	8	CH₃ s-deform.	1402	m	Ar	IR	Hinze and Curl, 1964 Stolkin, Ha, et al., 1977
	9	CH₃ rock	1220	s	gas	IR	Stolkin, Ha, et al., 1977
	9	CH₃ rock	1221	s	Ar	IR	Hinze and Curl, 1964 Stolkin, Ha, et al., 1977 Machara and Ault, 1987
	9	CH₃ rock	1221		N₂	IR	Machara and Ault, 1987
	10	C-N stretch	952	m	gas	IR	Stolkin, Ha, et al., 1977
	10	C-N stretch	950	m s	Ar	IR	Hinze and Curl, 1964 Stolkin, Ha, et al., 1977 Machara and Ault, 1987
	10	C-N stretch	949		N₂	IR	Machara and Ault, 1987
	12	CNC bend	484	m s	gas	IR	Stolkin, Ha, et al., 1977
	12	CNC bend	479	m s	Ar	IR	Hinze and Curl, 1964 Stolkin, Ha, et al., 1977 Machara and Ault, 1987
	12	CNC bend	484		N₂	IR	Machara and Ault, 1987
a	13	CH₃ a-stretch	2975	s	gas	IR	Stolkin, Ha, et al., 1977
	13	CH₃ a-stretch	2962	m s	Ar	IR	Hinze and Curl, 1964 Stolkin, Ha, et al., 1977 Machara and Ault, 1987
	14	CH₃ a-deform.	1444	s	gas	IR	Stolkin, Ha, et al., 1977
	14	CH₃ a-deform.	1441	m	Ar	IR	Hinze and Curl, 1964 Stolkin, Ha, et al., 1977
	15	CH₃ wag	1100	w	Ar	IR	Hinze and Curl, 1964 Stolkin, Ha, et al., 1977
	16	CH₂ OPLA	1026.14	vs	gas	IR	Stolkin, Ha, et al., 1977 Yu and Duxbury, 1992
	16	CH₂ OPLA	1026	vs	Ar	IR	Hinze and Curl, 1964 Stolkin, Ha, et al., 1977 Machara and Ault, 1987
	16	CH₂ OPLA	1030		N₂	IR	Machara and Ault, 1987
	17	C=N torsion	686	w	gas	IR	Stolkin, Ha, et al., 1977
	18	CH₃ twist	220	w T	Ar	IR	Stolkin, Ha, et al., 1977

Additional references: Jacox, 1994, page 375

Notes

Weak

Medium

Strong

Very strong

Tentative assignment or approximate value

References

Go To: Top, Vibrational and/or electronic energy levels, Notes

Stolkin, Ha, et al., 1977
Stolkin, I.; Ha, T.-K.; Gunthard, H.H., N-methylmethyleneimine and ethylideneimine: Gas- and matrix-infrared spectra, AB initio calculations and thermodynamic properties, Chem. Phys., 1977, 21, 3, 327, https://doi.org/10.1016/0301-0104(77)85189-6 . [all data]

Hinze and Curl, 1964
Hinze, J.; Curl, R.F., Jr., None, J. Am. Chem. Soc., 1964, 86, 23, 5068, https://doi.org/10.1021/ja01077a004 . [all data]

Machara and Ault, 1987
Machara, N.P.; Ault, B.S., 193 nm Excimer laser photochemistry in cryogenic matrices: synthesis of N-methylmethyleneimine, Chem. Phys. Lett., 1987, 140, 4, 411, https://doi.org/10.1016/0009-2614(87)80757-1 . [all data]

Sastry and Curl, 1964
Sastry, K.V.L.N.; Curl, R.F., Jr., Microwave Spectrum of N-Methyl Methylenimine, J. Chem. Phys., 1964, 41, 1, 77, https://doi.org/10.1063/1.1725653 . [all data]

Yu and Duxbury, 1992
Yu, G.; Duxbury, G., High-resolution diode laser spectroscopy of the ν16 band of N-methylmethylenimine, J. Mol. Spectrosc., 1992, 155, 1, 105, https://doi.org/10.1016/0022-2852(92)90551-X . [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]

Notes

Go To: Top, Vibrational and/or electronic energy levels, References

Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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