Mechanistic investigation of energy transfer in perylene-cored anthracene dendrimers
Mechanistic investigation of energy transfer in perylene-cored anthracene dendrimers
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DOI：
10.1039/b716908f
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发表时间：
2008-03
影响因子：
3.3
通讯作者：
Masaki Takahashi;H. Morimoto;Kentaro Miyake;H. Kawai;Y. Sei;K. Yamaguchi;T. Sengoku;H. Yoda
中科院分区：
文献类型：
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作者：
Masaki Takahashi;H. Morimoto;Kentaro Miyake;H. Kawai;Y. Sei;K. Yamaguchi;T. Sengoku;H. Yoda
在这本出版物中，我们描述了研究结果，重点放在定向能量转移的详细机制上。为了获得明确的统计数据来探索能量转移途径，我们合成了四个类似的树状大分子，它们的设计只将能量从远端的菲基团输送到茂铁核。对这些树枝状大分子的静态荧光研究表明，菲基团的激发导致了核心发射，这表明应该参与有效的能量转移。对所有10个树枝状大分子的能量转移效率的检测表明，单步能量转移应该是这些树枝状大分子长程能量转移的关键机制。
In this publication, we describe results of investigations focusing on detailed mechanisms of directed energy transfer in perylene-cored anthracene dendrimers. To obtain definitive statistical data for probing the energy transfer pathways, we synthesized four analogous dendrimers, which were designed to funnel the energy only from remote anthracene groups to the perylene cores. Static fluorescence studies with these dendrimers revealed that excitation of the anthracene groups led to the core emissions, indicating efficient energy transfer should be involved. Inspection of the energy transfer efficiencies obtained from all ten dendrimers demonstrated that single-step energy transfer should represent a key mechanism for the long-range energy transport in these dendrimers.