Coherent Effects in Charge Transport in Molecular Wires: Toward a Unifying Picture of Long-Range Hole Transfer in DNA.,The Journal of Physical Chemistry Letters

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Coherent Effects in Charge Transport in Molecular Wires: Toward a Unifying Picture of Long-Range Hole Transfer in DNA.
The Journal of Physical Chemistry Letters ( IF 4.8 ) Pub Date : 2020-08-24 , DOI: 10.1021/acs.jpclett.0c01996
Alessandro Landi ₁ , Amedeo Capobianco ₁ , Andrea Peluso ₁

Affiliation

In the framework of a multistep mechanism in which environmental motion triggers comparatively faster elementary electron-transfer steps and stabilizes hole-transfer products, microscopic coherence is crucial for rationalizing the observed yield ratios of oxidative damage to DNA. Interference among probability amplitudes of indistinguishable electron-transfer paths is able to drastically change the final outcome of charge transport, even in DNA oligomers constituted by similar building blocks, and allows for reconciling apparently discordant experimental observations. Properly tailored DNA oligomers appear to be a promising workbench for studying tunneling in the presence of dissipation at the macroscopic level.

中文翻译：

分子线中电荷传输的相干效应：对DNA中长距离空穴转移的统一认识。

在多步机制的框架中，环境运动触发了相对更快的基本电子转移步骤并稳定了空穴转移产物，微观相干性对于合理化所观察到的氧化损伤对DNA的产率比至关重要。不可区分的电子传输路径的概率振幅之间的干扰能够极大地改变电荷传输的最终结果，即使在由相似结构单元组成的DNA低聚物中也是如此，并且可以调和明显不一致的实验观察结果。适当定制的DNA寡聚物似乎是一个有前途的工作台，用于研究在宏观水平存在耗散的隧道现象。

更新日期：2020-09-18

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