南京大学学报(自然科学版) ›› 2018, Vol. 54 ›› Issue (4): 672.
高子雅,王宝荣,周 政,郑丽敏,张志炳*
Gao Ziya,Wang Baorong,Zhou Zheng,Zheng Limin,Zhang Zhibing*
摘要: N-甲基吡咯烷酮(NMP)与氯化锂的水溶液体系会形成配合物,研究该体系配合物的特征对于制定科学的分离方法十分重要. 迄今为止,还没有关于此类配合物具体结构的相关研究报道. 通过核磁共振氢谱对其结构进行初步表征,并模拟该配合物产生的条件,成功地合成了该配合物进一步使用甲醇-乙腈作为混合溶剂,采用低温挥发法获得了适合于X射线衍射的单晶. 单晶结构数据显示该配合物由两个金属锂离子、两个NMP分子、四个配位水以及两个氯离子组成,呈现畸变的四面体构型. 其中,两个锂离子中心的距离为2.737(9),相关的Li-O键长分别是1.903(5),1.929(5)和1.960(5). 此外,还尝试对该配合物的解络方法进行了探究.
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