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将六水氯化镨,水杨酸与8-羟基喹啉三种物质一起反应,制得了一种新的稀土化合物,通过元素分析、热重差热分析、紫外光谱、红外光谱、化学分析等手段确定了配合物的组成为[Pr(C7H5O3)2·(C9H6NO)],并对该配合物的结构与性质进行了推测.在配位过程中,水杨酸脱掉羧基上的质子以酸根的形式与稀土离子配位而酚羟基氧没有配位,8-羟基喹啉脱质子后以羟基氧和氮原子与稀土离子形成螯环.
A new rare earth compound was prepared by reaction of praseodymium chloride hexahydrate, salicylic acid and 8-hydroxyquinoline. Elemental analysis, TG-DTA, UV, IR and chemical analysis (C7H5O3) 2 · (C9H6NO)], and the structure and properties of the complex have been inferred.During the coordination process, the proton on the carboxyl group of salicylic acid is removed by acid radical With the form of rare earth ions and phenolic hydroxyl oxygen without coordination, 8-hydroxyquinoline deprotonated with hydroxyl oxygen and nitrogen atoms and rare earth ions to form a ring.