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中文摘要：
设计合成了基于2-脲基-4[1氢]-嘧啶酮AADD四氢键萘-蒽超分子组装体系UPNa.UPAn.稳态和时间分辨荧光光谱研究表明UPNa·UPAn四氢键组装体可以发生从萘到蒽的高效、快速的单重态能量传递过程.体系内光诱导单重态能量传递的速度和效率远大于通过Forster机制的单重态能量传递速率,表明组装体系UPNa·UPAn中萘向蒽的光诱导单重态能量传递是经由体系内的Forster和＂通过AADD四氢键＂的超交换机制发生的.
英文摘要：
A relative rigid naphthalene-anthracene supramolecular ensemble has been designed and synthesized via 2-ureido-4[1H]-pyrimidinone quadruple hydrogen-bonded module.Steady-state and time-resolved fluorescence profiles demonstrate that the singlet-singlet energy transfer occurs effectively from naphthalene to anthracene moieties in ensemble UPNa· UPAn.The rate constant and efficiency for photoinduced energy transfer in ensemble UPNa·UPAn is much greater than that of theoretical calculation through Frster mechanism.Therefore,the singlet-singlet energy transfer process takes place via Frster mechanism and ＂through AADD quadruple hydrogen bond＂ mechanism in this ensemble.
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