论文部分内容阅读
对Y、Ba、Cu的DPM螯合物的制备及其挥发性能进行了研究。这3种螯合物都可用其可溶性的盐溶液与HDPM(二特戊酰基甲烷)的醇水溶液反应来制备,它们的挥发速率,随着温度的升高呈指数增大,随载气流量增大线性增加,随系统压力的增大而急剧下降。热分析和挥发性实验结果表明:Cu(DPM)2和Y(DPM)3具有较高的挥发性和热稳定性,适用于气相色谱研究和制备薄膜的源物质,但Ba(DPM)2挥发性相对较低,且不太稳定
Preparation of DPM chelates of Y, Ba, Cu and their volatility were studied. All three chelates can be prepared by the reaction of their soluble salt solution with an aqueous solution of HDPM (pivaloylmethane). Their volatilization rates increase exponentially with increasing temperature. With increasing carrier gas flow Large linear increase, with the system pressure increases sharply dropped. The results of thermal analysis and volatility experiments show that Cu (DPM) 2 and Y (DPM) 3 have high volatility and thermal stability and are suitable for gas chromatographic research and thin film preparation of source materials, but Ba (DPM) 2 volatilizes Relatively low sex, and not very stable