PREPARATION OF SOLUBLE ALN PRECURSORS IN A H4-CH3NH2-CENTER-DOT-HCL-(CH3)(2)NH-CENTER-DOT-HCL SYSTEM

Authors
KOYAMA S SAITO Y SUGAHARA Y KURODA K
Citation
S. Koyama et al., PREPARATION OF SOLUBLE ALN PRECURSORS IN A H4-CH3NH2-CENTER-DOT-HCL-(CH3)(2)NH-CENTER-DOT-HCL SYSTEM, Chemistry Letters, (12), 1997, pp. 1227-1228
Citations number
19
Categorie Soggetti
Chemistry
Journal title
Chemistry Letters → ACNP
ISSN journal
03667022
Issue
12
Year of publication
1997
Pages
1227 - 1228
Database
ISI
SICI code
0366-7022(1997):12<1227:POSAPI>2.0.ZU;2-H
Abstract
Novel AlN precursors have been prepared by reactions in a LiAlH4-CH3NH 2 . HCl-(CH3)(2)NH . HCl system with several nominal CH3NH2 . HCl:(CH3 )(2)NH . HCl (M:D) ratios (M:D=4:1, 6:1 and 8:1). Considerable amounts of precursors were soluble in both tetrahydrofuran and benzene. Solub le precursors consist of polymeric/oligomeric species possessing both [H2AlNMe2] and [HAlNMe] units, and ring-type (H2AlNMe2)(3) was also pr esent only if M:D=4:1. The precursors were converted into single-phase AIN with relatively high ceramic yields (up to 58 %) by pyrolysis at 1600 degrees C under Ar.