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合成了钇（Ⅲ）的二特戊酰基甲烷螯合物（简称Ｙ（ＤＰＭ）３），并以红外光谱、核磁共振谱及Ｘ射线物相分析进行了表征和鉴定。研究了这种β二酮类螯合物的升华性能。结果表明，其升华速率与温度呈指数关系，与载气流量呈线性关系；通过测定蒸气压与温度之间的关系，求得１３０℃１６４℃温度范围内的升华焓和升华熵，分别为１３５ｋＪ·ｍｏｌ－１和２６５Ｊ·ｍｏｌ－１·Ｋ－１。实验研究表明，该螯合物具有良好的挥发性和热稳定性，适用于气相色谱研究和制备薄膜的金属有机化合物源。
The pivaloylmethane chelate (referred to as Y (DPM) 3) of yttrium (Ⅲ) was synthesized and characterized by IR, 1HNMR and X-ray phase analysis. The sublimation performance of this β-dione chelate was studied. The results show that the sublimation rate has an exponential relationship with the temperature and a linear relationship with the carrier gas flow rate. The sublimation enthalpy and sublimation entropy in the temperature range of 130 ℃ and 164 ℃ are obtained by measuring the relationship between vapor pressure and temperature, which are 135kJ · Mol -1 and 265 J · mol -1 K -1. Experimental studies have shown that the chelate has good volatility and thermal stability, suitable for gas chromatography research and preparation of thin film metal organic compound source.