MAGNESIUM AND CALCIUM NITRIDES AS NITROGEN-SOURCES IN METATHETICAL REACTIONS TO PRODUCE METAL NITRIDES

被引：39
|
作者：
HECTOR, AL
PARKIN, IP
机构：
[1] Department of Chemistry, University College London, Christopher Ingold Laboratories, London WC1H OAJ
来源：
CHEMISTRY OF MATERIALS | 1995年 / 7卷 / 09期
关键词：
D O I：
10.1021/cm00057a024
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Reaction of Ca3N2 or Mg3N2 with anhydrous metal chlorides (MnCl2; MCl(3), M = Ti, V, Mo, Nd, Sm, Gd, Tb, Er; MCl(3), M = Hf, W; MCl(5), M = Nb, Ta) in evacuated sealed Pyrex or quartz ampules at 500-900 degrees C or by filament initiation under nitrogen or argon was used to produce metal nitrides and calcium or magnesium chloride. The nitrides were purified by washing with methanol and isolated in ca. 70-90% yield. Variation in reaction conditions allowed the isolation of intermediate phazes of Ln(2)Cl(3)N (Ln Sm, Gd, Tb, Er) and Ca2NCl, giving evidence that at least some of the reactions proceed via ionic metathesis pathways. Phase-pure VN and V2N were produced, both of which have previously been inaccessible in solid-state reactions using metathetical methods.
引用
收藏
页码：1728 / 1733
页数：6
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