Pyrolytic Conversion of Precursors Prepared in Ti(NMe2)4-Diamine Systems

Seiichi Koyama, Daisuke Iizuka, Yoshiyuki Sugahara, Kazuyuki Kuroda

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    Abstract

    Precursors possessing Ti-N bonds were prepared by the reactions between Ti(NMe2)4 and each of three diamines H2NCH2CH2NH2, Me(H)NCH2CH2N(H)Me, HN(CH2CH2)2NH (Ti(NMe2)4:diamine = 1:2), and were converted into ceramics by pyrolysis. The reactions with H2NCH2CH2NH2 and HN(CH2CH2)2NH led to the formation of insoluble solids, whereas a soluble oil was obtained by the reaction with Me(H)NCH2CH2N(H)Me. The pyrolyses under argon gave carbon-rich Ti(N,C,O) phases, but those under NH3- N2 resulted in the formation of Ti(N,C,O) phases with higher nitrogen contents. Despite the difference in precursor structures the pyrolysis behavior of three precursors under argon was rather similar, suggesting that the precursor obtained from Me(H)NCH2CH2N(H)Me was effectively cross-linked during pyrolysis.

    Original languageEnglish
    Pages (from-to)787-792
    Number of pages6
    JournalApplied Organometallic Chemistry
    Volume12
    Issue number10-11
    Publication statusPublished - 1998 Oct

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    Keywords

    • Amminolysis
    • Precursor
    • Pyrolysis
    • Tetrakis(dimethylamino)titanium
    • Titanium nitride

    ASJC Scopus subject areas

    • Chemistry (miscellaneous)
    • Inorganic Chemistry

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