FRET in Orthogonal, Increasingly Strain-Rigidified Systems,Israel Journal of Chemistry

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FRET in Orthogonal, Increasingly Strain-Rigidified Systems
Israel Journal of Chemistry ( IF 2.3 ) Pub Date : 2021-08-08 , DOI: 10.1002/ijch.202100021
Heinz Langhals ₁ , Christian Dietl ₁ , Peter Mayer _{1,

2}

Affiliation

The influence of the geometry factor κ on the efficiency of energy transfer by FRET (Förster resonance energy transfer) was studied by means of dyads of benzoperylene and perylene interlinked by a spacer of the cage bicyclo-[2.2.2]octane. The electronic transition moments were arranged orthogonally for extinguishing the energy transfer according to Förster's theory. In contrast to the theory energy transfer proceeded unrestrictedly attributed to molecular vibrations. A further rigidifying of the spacer by means of annellation with benzo groups until the very rigid triptycene as a spacer could not hinder the energy transfer so that general strongly coupled molecular framework vibrations seem to be dominant in the energy transfer whereas molecular flexibility seems to be of minor importance. Application such as molecular mirrors are discussed.

中文翻译：

FRET 在正交的、应变越来越强的系统中

几何因子κ的影响对通过笼式双环-[2.2.2] 辛烷的间隔物互连的苯并苝和苝的二元对通过 FRET（Förster 共振能量转移）的能量转移效率进行了研究。根据 Förster 的理论，电子跃迁矩正交排列以消除能量转移。与理论相反，能量转移不受限制地归因于分子振动。通过与苯并基团环化使间隔物进一步硬化，直到非常刚性的三蝶烯作为间隔物不会阻碍能量转移，因此一般强耦合的分子骨架振动似乎在能量转移中占主导地位，而分子柔韧性似乎是次要的。讨论了分子镜等应用。

更新日期：2021-08-08

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