Reactions of lithium and sodium aluminium hydride with sodium or lithium hydride. Preparation of a new alumino-hydride of lithium and sodium LiNa2AlH6
Reactions of lithium and sodium aluminium hydride with sodium or lithium hydride. Preparation of a new alumino-hydride of lithium and sodium LiNa2AlH6
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DOI：
10.1016/0025-5408(82)90204-5
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发表时间：
1982-12
影响因子：
5.4
通讯作者：
P. Claudy;B. Bonnetot;J. Bastide;Létoffé Jean-Marie
中科院分区：
文献类型：
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作者：
P. Claudy;B. Bonnetot;J. Bastide;Létoffé Jean-Marie
在不同的温度和压力条件下，研究了顺丁烯二酸单酯与M‘H(M，M’=Li，Na)的反应。合成了一种新的混合氢化物LiNa2AlH6。X射线结构已在飞利浦PW1120衍射仪上测定，产物结晶为面心立方结构，晶胞尺寸为a=7.405 Å。它的衍射图与Na3AlH6的高温改性非常接近，后者具有理想的面心立方冰晶石结构。用差示扫描量热仪研究了氢化物的热稳定性，计算了分解热，并与其他锂钠混合氢化物的热稳定性进行了比较
A study of the reactions of MAlH 4 with M′ H (where M, M′= Li, Na) has been carried out under various conditions of temperature and pressure. A new mixed hydride LiNa 2 AlH 6 has been obtained. The X-ray structure has been determined on a Philips PW 1120 diffractometer and the product crystallises into a fcc structure with a cell having the dimension a= 7.405 A ̊. Its diffraction pattern is very close to that of the high temperature modification of Na 3 AlH 6 which possesses the ideal fcc cryolite structure. The thermal stability has been studied by DSC and the enthalpy of decomposition has been calculated and compared with the values of the other mixed hydrides of lithium and sodium