期刊
MATERIALS CHEMISTRY AND PHYSICS
卷 66, 期 2-3, 页码 303-308出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/S0254-0584(00)00332-1
关键词
optimised crystalline; N-methylurea (NMU); recrystallisation
Solution grown organic crystals are usually affected by organic and inorganic impurities, which make difficult the achievement of optimised crystalline and optical properties. For this reason, organic materials must be subjected to specific treatments before being used in crystal growth process. Here, we report on a systematic study in which different techniques (recrystallisation, solvent extraction, complexation by usual chelants) have been used to prepare crystal growth quality material for NMU. Purification process has been assisted by analysis of HPLC, UV-VIS absorption, ICP-MS and fluorescence. Results show that appropriate sequential treatments can largely improve the material purity as directly verified in the crystal growth process, where a remarkable increase of growth stability has been observed. (C) 2000 Elsevier Science S.A. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据