| 含二茂铁基的希土螯合物的合成 |
| SYNTHESES OF RARE EARTH CHELATES CONTAINING FERROCENYL GROUP |
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| 摘要: 二茂铁基甲酰丙酮与三价希土金属反应、合成了十二个含二茂铁基的希土螯合物。元素分析结果表明螯合物的一般组成为 (C5H5FeC5H4COCHCOCH3)3Ln·xH2O, 当Ln=La时,x=2;当Ln=Y、Nd、Sm、Eu、Gd、Dy、Ho、Er、Tm、Yb、Lu时,x=1。螯合物在质谱中出现去结晶水后的分子离子峰。通过红外光谱证实了螫合物的结构,紫外光谱测定的结果表明,二茂铁基甲酰丙酮位于306nm处的K吸收带在螯合物中红移至313～314nm。运用TG—DTA法核实了螯合物中结晶水的个数,并测得了螯合物的热分解温度。 |
| 关键词: 二茂铁基 希土 螯合物 |
| 基金项目: |
| Abstract: This paper reports the preparation of novel rare earth chelates of 1-ferroceny 1-1,3-butanedione which have the general formula(C5H5FeC5H4COCHCOCH3)3Ln·xH2Owhere Ln=La,x=2; Ln=Y,Nd,Sm,Eu,Gd,Dy,Ho,Er,Tm,Yb,Lu,x= 1. The composition and the structure of the chelates have been characterized by elemental analyses and IR spectra. MS spectra were measured for some of the chelates and dehydrated molecular ion peaks were always observed. UV spectra show that the K band of the ligand at 306nm is shifted towards longer wavelength to 313-314nm in the chelates. TG DTA indicates that the chelates lose their molecules of water at the temperature about 130℃ and the weight-loss is identical with the theoretical amount. The chelates begin to decompose endothermically between 280-294℃ except for the Ho and Lu chelates which decompose exothermically at 202℃ and 203℃ respectively. |
| Keywords: rare earth chelate ferrocenyl group |
| 投稿时间：1985-05-06 |
| 摘要点击次数: 1539 |
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| 张国敏,熊和平,张伦.含二茂铁基的希土螯合物的合成[J].无机化学学报,1985,1(1):122-129. |
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