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

Seiichi Koyama; Daisuke Iizuka; Yoshiyuki Sugahara; Kazuyuki Kuroda

doi:10.1002/(SICI)1099-0739(199810/11)12:10/11<787::AID-AOC801>3.0.CO;2-C

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

Seiichi Koyama, Daisuke Iizuka, Yoshiyuki Sugahara, Kazuyuki Kuroda^*

^*Corresponding author for this work

School of Advanced Science and Engineering

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

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 language	English
Pages (from-to)	787-792
Number of pages	6
Journal	Applied Organometallic Chemistry
Volume	12
Issue number	10-11
DOIs	https://doi.org/10.1002/(SICI)1099-0739(199810/11)12:10/11<787::AID-AOC801>3.0.CO;2-C
Publication status	Published - 1998

Keywords

Amminolysis
Precursor
Pyrolysis
Tetrakis(dimethylamino)titanium
Titanium nitride

ASJC Scopus subject areas

Chemistry(all)
Inorganic Chemistry

Access to Document

10.1002/(SICI)1099-0739(199810/11)12:10/11<787::AID-AOC801>3.0.CO;2-C

Cite this

@article{5573e8e753384e648f854f077808c3aa,

title = "Pyrolytic Conversion of Precursors Prepared in Ti(NMe2)4-Diamine Systems",

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.",

keywords = "Amminolysis, Precursor, Pyrolysis, Tetrakis(dimethylamino)titanium, Titanium nitride",

author = "Seiichi Koyama and Daisuke Iizuka and Yoshiyuki Sugahara and Kazuyuki Kuroda",

year = "1998",

doi = "10.1002/(SICI)1099-0739(199810/11)12:10/11<787::AID-AOC801>3.0.CO;2-C",

language = "English",

volume = "12",

pages = "787--792",

journal = "Applied Organometallic Chemistry",

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publisher = "John Wiley and Sons Ltd",

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TY - JOUR

T1 - Pyrolytic Conversion of Precursors Prepared in Ti(NMe2)4-Diamine Systems

AU - Koyama, Seiichi

AU - Iizuka, Daisuke

AU - Sugahara, Yoshiyuki

AU - Kuroda, Kazuyuki

PY - 1998

Y1 - 1998

N2 - 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.

AB - 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.

KW - Amminolysis

KW - Precursor

KW - Pyrolysis

KW - Tetrakis(dimethylamino)titanium

KW - Titanium nitride

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