镧系-柠檬酸-乙酰丙酮系统中的超灵敏跃迁和络合作用 |
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引用本文: | 高锦章.镧系-柠檬酸-乙酰丙酮系统中的超灵敏跃迁和络合作用[J].科学通报,1979,24(24):1119-1119. |
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作者姓名: | 高锦章 |
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作者单位: | 甘肃师范大学化学系
(高锦章,康敬万),甘肃师范大学化学系(白光弼) |
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摘 要: | 在正常状态下镧系(Ln~(3+))4f壳层电子的跃迁是被禁止的。但是在配位场的作用下f-f跃迁则会发生,这将导致镧系水合离子光谱中狭窄的光吸收率强度相应的增大。此种现象称之为超灵敏跃迁(Hypersensitive transition)。溶液中镧系离子超灵敏跃迁的研究在阐明镧系配位
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HYPERSENSITIVE TRANSITION AND COMPLEX FORMATION IN THE SYSTEM OF LANTHANIDES (Nd~(3+), Ho~(3+), Er~(3+)). CITRIC ACID.ACETYLACETONE |
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Institution: | Gao Jin-zhang Kang Jing-wan Bai Guang-bi |
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Abstract: | The complex formation of lanthanides (Nd~(3+),Ho~(3+) and Er~(3+))-citrie acid (H_3 Cit)- acetylacetone (HA) has been studied by spectrophotometry. It was found that the lanthani- des combine with H_3Cit and HA at the ratio 1:1:1. From this datum obtained, the oscillator strength P of Ln~(3+) in solutions of both binary and ternary compounds has been calculated and the ralated general rule, that the oscillator strength P follows formulated. |
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