Tuning Intramolecular Förster Resonance Energy Transfer and Activating Intramolecular Singlet Fission,Angewandte Chemie International Edition

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Tuning Intramolecular Förster Resonance Energy Transfer and Activating Intramolecular Singlet Fission
Angewandte Chemie International Edition ( IF 16.1 ) Pub Date : 2018-10-19 , DOI: 10.1002/anie.201808652
Giulia Lavarda ₁ , Johannes Zirzlmeier ₂ , Marco Gruber ₃ , Parisa R. Rami ₄ , Rik R. Tykwinski _{3,

4} , Tomás Torres _{1,

5} , Dirk M. Guldi ₂

Affiliation

The synergy of panchromatic absorption throughout most of the visible range of the solar spectrum and intramolecular singlet fission (SF) has been realized in a series of conjugates featuring different light‐harvesting subphthalocyanines (SubPcs) and an energy accepting pentacene dimer (Pnc₂). At the focal point was a modular SubPc approach, which was based on decorating the SubPc core with different peripheral substituents to tailor and fine‐tune their optical properties. Transient absorption measurements assisted in corroborating that the SubPcs act as energy‐transfer antennas by means of unidirectional and quantitative intramolecular Förster resonance energy transfer (FRET) to the Pnc₂, where an intramolecular SF affords triplet quantum yields reaching unity.

中文翻译：

调整分子内弗斯特共振能量转移并激活分子内单重态裂变

在一系列共轭物中，实现了全色吸收在整个太阳光谱的大部分可见范围内的协同作用以及分子内单峰裂变（SF），这些共轭物具有不同的光收集亚酞菁（SubPcs）和能量接受并五苯二聚体（Pnc ₂）。重点是模块化的SubPc方法，该方法基于用不同的外围取代基修饰SubPc核心来定制和微调其光学性能。瞬态吸收测量有助于通过单向定量分子内Förster共振能量转移（FRET）到Pnc ₂来证实SubPcs充当能量传输天线，其中分子内SF提供三重态量子产率达到统一。

更新日期：2018-10-19

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