WestCHEM, Department of Pure and Applied Chemistry, Thomas Graham Building, The University of Strathclyde, 295 Cathedral Street, Glasgow, Scotland, UK G1 1XL.
Dalton Trans. 2010 Jan 14(2):411-7. doi: 10.1039/b908266b. Epub 2009 Aug 13.
Lithium molybdate has been prepared by grinding LiOH x H(2)O with MoO(3) in air at room temperature. X-Ray powder diffraction data show that the formation of highly crystalline Li(2)MoO(4) is largely complete after 10 min. The phenacite structure of this material is the same as that derived from an X-ray diffraction study of a single crystal obtained from aqueous solution [R3; a = 14.3178(14) A, c = 9.5757(9) A]. Anhydrous lithium hydroxide fails to give the same reaction indicating that the water of crystallisation of LiOH x H(2)O is a vital component in this rapid synthesis. Differential scanning calorimetry measurements show that this reaction can proceed spontaneously between the two stable solid reagents at sub-ambient temperatures and is driven by the liberation of water from the crystalline lattice. Lithium molybdate prepared in this manner has significantly smaller and more regularly shaped particles than samples prepared by other synthetic methods.
钼酸锂通过在室温下将 LiOH x H(2)O 与 MoO(3) 在空气中研磨制备而成。X 射线粉末衍射数据表明，在 10 分钟后，高度结晶的 Li(2)MoO(4)的形成基本完成。该材料的霞石结构与从水溶液中获得的单晶的 X 射线衍射研究得出的结构相同[R3；a = 14.3178(14) A，c = 9.5757(9) A]。无水氢氧化锂未能发生相同的反应，表明 LiOH x H(2)O 的结晶水是这种快速合成的重要组成部分。差示扫描量热法测量表明，在亚环境温度下，两种稳定的固体试剂之间可以自发进行该反应，并且是由结晶晶格中释放水驱动的。以这种方式制备的钼酸锂的颗粒比其他合成方法制备的样品更小且更规则。
