| Study on F-F Transitions of Powdered Neodymium Compounds by Photoacoustic Spectroscopy |
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| 作者姓名： | 杨跃涛 苏庆德 赵贵文 张淑仪 |
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| 作者单位： | 1. State Key Laboratory of Modern Acoustics，Institute of Acoustics，Nanjing University，Nanjing 210093，China; 2. Department of Chemistry，University of Science and Technology of China，Hefe |
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| 基金项目： | theNationalNaturalScienceFoundationofChina ( 196 340 5 0 ) |
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| 摘 要： | ＴｈｅｐｈｏｔｏａｃｏｕｓｔｉｃｅｆｆｅｃｔｗａｓｆｉｒｓｔｏｂｓｅｒｖｅｄａｂｏｕｔａｃｅｎｔｕｒｙａｇｏｂｙＢｅｌｌＡＧ .Ｉｔｓａｐｐｌｉｃａ ｔｉｏｎｓｔｏｇａｓｅｏｕｓａｎａｌｙｓｉｓｈａｖｅｂｅｅｎｎｕｍｅｒｏｕｓ .Ａｕｓｅｆｕｌｌａｂｏｒａｔｏｒｙｉｎｓｔｒｕｍｅｎｔｓｕｉｔａｂｌｅｆｏｒｔｈｅｉｎｖｅｓｔｉｇａｔｉｏｎｏｆｓｐｅｃｔｒａｌｐｒｏｐｅｒｔｉｅｓｏｆｔｈｅｒｍａｌｌｙｔｈｉｃｋｓａｍｐｌｅｓｗａｓ ,ｈｏｗｅｖｅｒ ,ｏｎｌｙｄｅｖｉｓｅｄｄｕｒ ｉｎｇｔｈｅ 1 970′ｓ .Ｓｏ…
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| 关 键 词： | 振子强度 稀土 光声光谱学 氧化铷 水合氯化铷 氟化铷 F-F转变 |
Study on F-F Transitions of Powdered Neodymium Compounds by Photoacoustic Spectroscopy |
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| Yang Yuetao,Su Qingde,Zhao Guiwen,Zhang Shuyi.Study on F-F Transitions of Powdered Neodymium Compounds by Photoacoustic Spectroscopy[J].Journal of Rare Earths,2002,20(1):10-14. |
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| Authors: | Yang Yuetao Su Qingde Zhao Guiwen Zhang Shuyi |
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| Abstract: | Photoacoustic (PA) spectra of powdered neodymium oxide (Nd2O3 (A type)), neodymium hydrated chloride (NdCl3*6H2O) and neodymium fluoride (NdF3) were reported. PA band shifts as compared to their positions in aqueous Nd3+ are used to calculate the nephelauxetic parameters of the compounds. The variation of these parameters and correlation with the nature of metal-ligand bonding were discussed. A novel method is introduced to determine the relative values of oscillator strengths and Judd-Ofelt parameters of powdered samples using PA spectroscopy. It is found that a linear correlation exists between relative values of τ2 and oscillator strengths of hypersensitive transitions of the title compounds. It is hopetul that the new method of PA technique may serve for the Judd-Ofelt quantitative analysis of powdered rare earth compounds. |
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| Keywords: | rare earths photoacoustic spectroscopy neodymium f f transition oscillator strength |
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