N,N prime -bis(triethylaluminio)ethylenediamine- and N,N prime -Bis(trimethylaluminio)ethylenediamine-derived organometallic precursors to aluminum nitride: Syntheses, structures, and pyrolyses
- Rensselaer Polytechnic Institute, Troy, NY (USA)
The reactions of triethylaluminum or trimethylaluminum with ethylenediamine (en) in a 2:1 molar ratio have been studied. Pyrolysis of the initially formed adducts under nitrogen yields polymeric amides and imides. Evidence was also obtained for the formation of novel en-chelated organoaluminum intermediates during the conversion of the adducts to the amides. The structures and properties of the adducts, as well as their pyrolysis products, have been studied with {sup 1}H and {sup 13}C NMR, FT-IR, GC, DSC, TGA, elemental analysis, and XRD methods. AlN powder has been obtained by the pyrolysis of the imides at 1,000{degree}C in NH{sub 3}. Preliminary studies were also carried out on the fabrication of AlN thin films on Si substrates by solution coating, using a solution of the bis(diethylaluminio)ethylenediamine in benzene, followed by pyrolysis under NH{sub 3}.
- OSTI ID:
- 6447146
- Journal Information:
- Chemistry of Materials; (USA), Journal Name: Chemistry of Materials; (USA) Vol. 2:4; ISSN CMATE; ISSN 0897-4756
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
360202* -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
ALUMINIUM COMPOUNDS
ALUMINIUM NITRIDES
CHEMICAL REACTIONS
COHERENT SCATTERING
DATA
DATA ANALYSIS
DECOMPOSITION
DIFFRACTION
EXPERIMENTAL DATA
INFORMATION
MEASURING INSTRUMENTS
MEASURING METHODS
NITRIDES
NITROGEN COMPOUNDS
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANOMETALLIC COMPOUNDS
PNICTIDES
PRECURSOR
PYROLYSIS
SCATTERING
SYNTHESIS
THERMOCHEMICAL PROCESSES
X-RAY DIFFRACTION