Trimethylaluminum

Formula: C₃H₉Al
Molecular weight: 72.0851
IUPAC Standard InChI: InChI=1S/3CH3.Al/h3*1H3;
IUPAC Standard InChIKey: JLTRXTDYQLMHGR-UHFFFAOYSA-N
CAS Registry Number: 75-24-1
Chemical structure:
This structure is also available as a 2d Mol file or as a computed 3d SD file
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Other names: (CH3)3Al; Aluminum, trimethyl-; Trimethylalane; Trimethylaluminium; UN 1103
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Vibrational and/or electronic energy levels

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Data compiled by: Marilyn E. Jacox

State: X

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


a₁'	1	CH₃ s-stretch	2920		gas	Ra	O'Brien and Ozin, 1971
	2	CH₃ deform.	1200		gas	Ra	O'Brien and Ozin, 1971
	3	AlC₃ s-stretch	530		gas	Ra	O'Brien and Ozin, 1971
a₂	7	CH₃ a-stretch	2948	s	Ar	IR	Kvisle and Rytter, 1984
	9	CH₃ rock	744	vs	gas	IR	Atiya, Grady, et al., 1991
	9	CH₃ rock	742	s	Ar	IR	Kvisle and Rytter, 1984
e'	11	CH₃ a-stretch	2982	m	gas	IR Ra	O'Brien and Ozin, 1971 Atiya, Grady, et al., 1991
	11	CH₃ a-stretch	2971	s	Ar	IR	Kvisle and Rytter, 1984
	12	CH₃ s-stretch	2901	m	gas	IR Ra	O'Brien and Ozin, 1971 Atiya, Grady, et al., 1991
	12	CH₃ s-stretch	2905	m	Ar	IR	Kvisle and Rytter, 1984
	13	CH₃ a-deform.	1430	w T	gas	IR Ra	O'Brien and Ozin, 1971 Atiya, Grady, et al., 1991
	13	CH₃ a-deform.	1430	w T	Ar	IR	Kvisle and Rytter, 1984
	14	CH₃ s-deform.	1202	s	gas	IR	Atiya, Grady, et al., 1991
	14	CH₃ s-deform.	1196	s	Ar	IR	Kvisle and Rytter, 1984
	15	CH₃ rock	754	s T	gas	IR Ra	O'Brien and Ozin, 1971 Atiya, Grady, et al., 1991
	16	AlC₃ a-stretch	691	m s	gas	IR	Atiya, Grady, et al., 1991
	16	AlC₃ a-stretch	689	s	Ar	IR	Kvisle and Rytter, 1984
	17	AlC₃ deform.	170		gas	Ra	O'Brien and Ozin, 1971
e	18	CH₃ a-stretch	2951		gas	Ra	O'Brien and Ozin, 1971
	19	CH₃ a-deform.	1440		gas	Ra	O'Brien and Ozin, 1971
	20	CH₃ rock	717	w	Ar	IR	Kvisle and Rytter, 1984

Additional references: Jacox, 1994, page 400

Notes

Weak

Medium

Strong

Very strong

Tentative assignment or approximate value

References

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

O'Brien and Ozin, 1971
O'Brien, R.J.; Ozin, G.A., J. Chem. Soc. A, 1971, 1136. [all data]

Kvisle and Rytter, 1984
Kvisle, S.; Rytter, E., Spectrochim. Acta 40A, 1984, 939. [all data]

Atiya, Grady, et al., 1991
Atiya, G.A.; Grady, A.S.; Russell, D.K.; Claxton, T.A., Spectrochim. Acta, 1991, 47A, 467. [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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