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arXiv · 2209.01818

Identification of the decay pathway of photoexcited nucleobases

Xiangxu Mu·Ming Zhang·Jiechao Feng·Hanwei Yang·Nikita Medvedev·Xinyang Liu·Leyi Yang·Haitan Xu·Zheng Li
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Abstract

The identification of the decay pathway of the nucleobase uracil after being photoexcited by ultraviolet (UV) light has been a long standing problem. Various theoretical models have been proposed but yet to be verified. Here we propose an experimental scheme to test the theoretical models by a combination of ultrafast X-ray spectroscopy, X-ray diffraction and electron diffraction methods. Incorporating the signatures of multiple probing methods, we demonstrate an approach to identify the pathway of the geometric and electronic relaxation of the photoexcited uracil molecule.

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Xiangxu Mu, Ming Zhang, Jiechao Feng, Hanwei Yang, Nikita Medvedev, Xinyang Liu, Leyi Yang, Haitan Xu, Zheng Li. 2022-09-05. Identification of the decay pathway of photoexcited nucleobases. https://arxiv.org/abs/2209.01818

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