| LB膜中稀土配合物分子间能量转移研究 |
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| 引用本文： | 钟国伦,杨孔章.LB膜中稀土配合物分子间能量转移研究[J].物理化学学报,1997,13(6):493-496. |
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| 作者姓名： | 钟国伦 杨孔章 |
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| 作者单位： | Institute of Colloid and Interface Chemistry,Shandong University,Jinan 250100 |
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| 基金项目： | 国家自然科学基金，国家攀登计划资助 |
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| 摘 要： | 有关LB膜中的Forst。r型共振能量转移已有不少报导，这种能量转移一般可发生在给体（D）和受体（川两者相距50－100A以上．所以，可以用F0rS比r公式对临界转移距离进行计算h－’1．而对LB膜中涉及三线态的分子间能量转移报导则不多见，此类能量转移是发生在6－15A之间．Yalnamo
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| 关 键 词： | LB膜 稀土 配合物 能量转移 活性增强球 |
| 收稿时间： | 1997-03-03 |
| 修稿时间： | 1997-04-23 |
Research on the Intermolecular Energy Transfer of Rare Earth Complexes in Langmuir-Blodgett Films |
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| Zhong Guolun, Yang Kongzhang.Research on the Intermolecular Energy Transfer of Rare Earth Complexes in Langmuir-Blodgett Films[J].Acta Physico-Chimica Sinica,1997,13(6):493-496. |
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| Authors: | Zhong Guolun Yang Kongzhang |
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| Institution: | Institute of Colloid and Interface Chemistry,Shandong University,Jinan 250100 |
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| Abstract: | To study intermolecular energy transfer of rare earth-β-diketones, monolayers of mixed RE(TTA)3Phen (RE=La, Gd, Tb, or Y) with Eu(TTA)3Phen in molar ratio of 1:1 and 1:4 were fabricated in this paper. Meanwhile, an active enhanced sphere model was proposed to acquire the efficient radii of energy transfer between the molecules of complexes. The efficient radius for energy transfer from Gd(TTA)3Phen or Tb(TTA)3Phen to Eu(TTA)3Phen is 12Å and those from La (TTA)3Phen and Y(TTA)3Phen to Eu(TTA)3Phen are 7Å and 10Å, respectively. The reliability of the model was proved by comparing the emission intensities that were calculated by using values of R mentioned above with experimental values. The model proposed is a supplement to Perrins active sphere theory. By this model a triplet-triplct energy transfer can be deduced from TTA of RE(TTA)3Phen to that of Eu(TTA)3Phen. The process proceeds by an electron exchange mechanism. |
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| Keywords: | LB films Rare earth Complex Energy transfer Active enhanced sphere |
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