水溶性杯[4]芳烃衍生物与稀土钐[III]离子形成配合物的光谱特性 |
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引用本文: | 张宁,李伟,唐世华.水溶性杯[4]芳烃衍生物与稀土钐[III]离子形成配合物的光谱特性[J].河南科学,2003,21(2):152-154. |
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作者姓名: | 张宁 李伟 唐世华 |
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作者单位: | 驻马店师专化学系,河南,驻马店,463000 |
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摘 要: | 水溶性杯4]芳烃(L4)可以与Sm3+形成能量传递配合物,但是能量传递效率较低,Sm3+的红光发射较弱,而且配合物溶液浓度增大时还发生自猝灭现象。根据配体第一激发态和第一激发三重态能级分布,比较Sm3+、Eu3+、Tb3+等稀土离子4f能级,可以合理地解释这种现象。
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关 键 词: | 水溶性杯芳烃 钐(III)配合物 能量传递 荧光特性 |
文章编号: | 1004-3918(2003)02-0152-03 |
修稿时间: | 2002年12月18 |
Spectroscopic properties on the formation complex of water soluble calix[4]arene derivative with earth samarium (III) ion |
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Abstract: | The spectroscopic properties on formation complex of 25,26,27,28-tetra-carboxylic acid-5,11,17,23-calix[4]arenesulfonate (L\-4) and samarium (III) ion was investigated by UV-Vis and fluorescence measurements. L\-4 can form an energy transfer complex with Sm\+\{3+\}, but the fluorescence of L\-4·Sm\+\{3+\} is not strong and easily quenched by itself. The energy transfer mechanism from ligand to rare earth ions was also discussed. |
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Keywords: | water-soluble calix[4]arene samarium complex energy transfer fluorescence property |
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