TY - JOUR
T1 - Preparation and pyrolysis of poly(allyl iminoalane-co-ethyl iminoalane)s [HAlN(allyl)]m[HAlNEt]n
AU - Mori, Yusuke
AU - Kumakura, Yasuhiro
AU - Sugahara, Yoshiyuki
N1 - Funding Information:
The authors gratefully thank Prof. Kazuyuki Kuroda, Department of Applied Chemistry at Waseda University, for valuable discussion. This work was supported by 21COE “Practical Nano-Chemistry” from MEXT, Japan.
PY - 2006/10/1
Y1 - 2006/10/1
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.
KW - Aluminum nitride
KW - Hydroalumination
KW - Poly(allyl iminoalane-co-ethyl iminoalane)s
KW - Precursor
KW - Pyrolysis
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U2 - 10.1016/j.jorganchem.2006.07.004
DO - 10.1016/j.jorganchem.2006.07.004
M3 - Article
AN - SCOPUS:33747884335
SN - 0022-328X
VL - 691
SP - 4289
EP - 4296
JO - Journal of Organometallic Chemistry
JF - Journal of Organometallic Chemistry
IS - 20
ER -