FORMATION OF TRANSITION-METAL NITRIDES FROM THE REACTIONS OF LITHIUM AMIDES AND ANHYDROUS TRANSITION-METAL CHLORIDES

被引:27
作者
PARKIN, IP
ROWLEY, AT
机构
[1] Department of Chemistry, Christopher Lngold Laboratories, University College London, London WC1H 0AJ
关键词
D O I
10.1039/jm9950500909
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 anhydrous metal chlorides and lithium amide at 160-400 degrees C induces an exothermic reaction with formation of lithium chloride and an amorphous material. Trituration of the product with tetrahydrofuran (THF) followed by thermolysis at 700 degrees C for 1-2 h results in the formation of crystalline metal nitrides of varying composition (TiN, ZrN, HfN, VN, NbN, TaN, Cr2N, CrN, Mo2N, W2N, Mn3N2 and Zn3N2). Reactions involving iron, nickel, copper and indium chlorides with lithium amide yielded the metallic elements. The reactions of lithium dimethylamide and lithium diisopropyl amide and selected metal chlorides also produced metal nitrides under comparable reaction conditions. The metal nitrides were analysed by powder XRD, microanalysis, magnetic moment measurements, FTIR and SEM/EDXA.
引用
收藏
页码:909 / 912
页数:4
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