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.
在本出版物中,我们描述了针对聚焦于
芘核
蒽树枝状分子中定向能量转移详细机制的研究结果。为了获得确定的统计数据以探测能量转移途径,我们合成了四种类似的树枝状分子,旨在仅从远处的
蒽基团向
芘核分配能量。对这些树枝状分子的静态荧光研究表明,激发
蒽基团会导致核发射,这表明能量转移效率很高。对所有十种树枝状分子获得的能量转移效率的检查表明,单步能量转移可能是这些树枝状分子中长距离能量传输的关键机制。