Preparation and pyrolysis of poly(allyl iminoalane-co-ethyl iminoalane)s [HAlN(allyl)]m[HAlNEt]n

Yusuke Mori, Yasuhiro Kumakura, Yoshiyuki Sugahara

    Research output: Contribution to journalArticle

    6 Citations (Scopus)

    Abstract

    Poly(allyl iminoalane-co-ethyl iminoalane)s {[HAlN(allyl)]m[HAlNEt]n; Allyl/Et-alanes}, have been prepared by reactions of lithium hydridoaluminate (LiAlH4) with a mixture of allylamine hydrochloride (CH2{double bond, long}CHCH2NH2 · HCl; allylNH2 · HCl) and ethylamine hydrochloride (CH3CH2NH2 · HCl; EtNH2 · HCl) with various allyl/Et ratios. Spectroscopic analyses indicate that Allyl/Et-alane(1/3) (allyl/Et = 1/3) contains octamers possessing Al-H and C-H groups as well as C{double bond, long}C, Al-N, and C-N bonds. The loss of aluminum during pyrolysis of Allyl/Et-alane(1/3) at 1600 °C under an Ar atmosphere is 15%, which is less than the value reported for the pyrolysis of poly(ethyliminoalane) (36%). The suppression can be ascribed to cross-linking reactions involving allyl groups (hydroalumination and polymerization of the allyl groups), judging from infrared (IR) and solid-state nuclear magnetic resonance (NMR) spectroscopy.

    Original languageEnglish
    Pages (from-to)4289-4296
    Number of pages8
    JournalJournal of Organometallic Chemistry
    Volume691
    Issue number20
    DOIs
    Publication statusPublished - 2006 Oct 1

    Fingerprint

    Allylamine
    Cross Reactions
    Aluminum
    Atmosphere
    Lithium
    Polymerization
    pyrolysis
    Pyrolysis
    Magnetic Resonance Spectroscopy
    hydrochlorides
    preparation
    Nuclear magnetic resonance spectroscopy
    magnetic resonance spectroscopy
    Infrared radiation
    polymerization
    lithium
    retarding
    solid state
    aluminum
    atmospheres

    Keywords

    • Aluminum nitride
    • Hydroalumination
    • Poly(allyl iminoalane-co-ethyl iminoalane)s
    • Precursor
    • Pyrolysis

    ASJC Scopus subject areas

    • Chemical Engineering (miscellaneous)
    • Materials Science (miscellaneous)
    • Materials Chemistry
    • Physical and Theoretical Chemistry
    • Organic Chemistry
    • Inorganic Chemistry
    • Biochemistry

    Cite this

    Preparation and pyrolysis of poly(allyl iminoalane-co-ethyl iminoalane)s [HAlN(allyl)]m[HAlNEt]n . / Mori, Yusuke; Kumakura, Yasuhiro; Sugahara, Yoshiyuki.

    In: Journal of Organometallic Chemistry, Vol. 691, No. 20, 01.10.2006, p. 4289-4296.

    Research output: Contribution to journalArticle

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    abstract = "Poly(allyl iminoalane-co-ethyl iminoalane)s {[HAlN(allyl)]m[HAlNEt]n; Allyl/Et-alanes}, have been prepared by reactions of lithium hydridoaluminate (LiAlH4) with a mixture of allylamine hydrochloride (CH2{double bond, long}CHCH2NH2 · HCl; allylNH2 · HCl) and ethylamine hydrochloride (CH3CH2NH2 · HCl; EtNH2 · HCl) with various allyl/Et ratios. Spectroscopic analyses indicate that Allyl/Et-alane(1/3) (allyl/Et = 1/3) contains octamers possessing Al-H and C-H groups as well as C{double bond, long}C, Al-N, and C-N bonds. The loss of aluminum during pyrolysis of Allyl/Et-alane(1/3) at 1600 °C under an Ar atmosphere is 15{\%}, which is less than the value reported for the pyrolysis of poly(ethyliminoalane) (36{\%}). The suppression can be ascribed to cross-linking reactions involving allyl groups (hydroalumination and polymerization of the allyl groups), judging from infrared (IR) and solid-state nuclear magnetic resonance (NMR) spectroscopy.",
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    N2 - Poly(allyl iminoalane-co-ethyl iminoalane)s {[HAlN(allyl)]m[HAlNEt]n; Allyl/Et-alanes}, have been prepared by reactions of lithium hydridoaluminate (LiAlH4) with a mixture of allylamine hydrochloride (CH2{double bond, long}CHCH2NH2 · HCl; allylNH2 · HCl) and ethylamine hydrochloride (CH3CH2NH2 · HCl; EtNH2 · HCl) with various allyl/Et ratios. Spectroscopic analyses indicate that Allyl/Et-alane(1/3) (allyl/Et = 1/3) contains octamers possessing Al-H and C-H groups as well as C{double bond, long}C, Al-N, and C-N bonds. The loss of aluminum during pyrolysis of Allyl/Et-alane(1/3) at 1600 °C under an Ar atmosphere is 15%, which is less than the value reported for the pyrolysis of poly(ethyliminoalane) (36%). The suppression can be ascribed to cross-linking reactions involving allyl groups (hydroalumination and polymerization of the allyl groups), judging from infrared (IR) and solid-state nuclear magnetic resonance (NMR) spectroscopy.

    AB - Poly(allyl iminoalane-co-ethyl iminoalane)s {[HAlN(allyl)]m[HAlNEt]n; Allyl/Et-alanes}, have been prepared by reactions of lithium hydridoaluminate (LiAlH4) with a mixture of allylamine hydrochloride (CH2{double bond, long}CHCH2NH2 · HCl; allylNH2 · HCl) and ethylamine hydrochloride (CH3CH2NH2 · HCl; EtNH2 · HCl) with various allyl/Et ratios. Spectroscopic analyses indicate that Allyl/Et-alane(1/3) (allyl/Et = 1/3) contains octamers possessing Al-H and C-H groups as well as C{double bond, long}C, Al-N, and C-N bonds. The loss of aluminum during pyrolysis of Allyl/Et-alane(1/3) at 1600 °C under an Ar atmosphere is 15%, which is less than the value reported for the pyrolysis of poly(ethyliminoalane) (36%). The suppression can be ascribed to cross-linking reactions involving allyl groups (hydroalumination and polymerization of the allyl groups), judging from infrared (IR) and solid-state nuclear magnetic resonance (NMR) spectroscopy.

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    KW - Poly(allyl iminoalane-co-ethyl iminoalane)s

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