Ultrafast internal conversion dynamics of highly excited pyrrole studied with VUV/UV pump probe spectroscopy

Spencer L. Horton; Yusong Liu; Pratip Chakraborty; Spiridoula Matsika; Thomas Weinacht

doi:10.1063/1.4975765

Ultrafast internal conversion dynamics of highly excited pyrrole studied with VUV/UV pump probe spectroscopy

Spencer L. Horton, Yusong Liu, Pratip Chakraborty, Spiridoula Matsika, Thomas Weinacht

School of Chemistry, Pharmacy and Pharmacology

Research output: Contribution to journal › Article › peer-review

10 Citations (Scopus)

Abstract

We study the relaxation dynamics of pyrrole after excitation with an 8 eV pump pulse to a state just 0.2 eV below the ionization potential using vacuum ultraviolet/ultraviolet pump probe spectroscopy. Our measurements in conjunction with electronic structure calculations indicate that pyrrole undergoes rapid internal conversion to the ground state in less than 300 fs. We find that internal conversion to the ground state dominates over dissociation.

Original language	English
Article number	064306
Journal	The Journal of Chemical Physics
Volume	146
Issue number	6
Early online date	13 Feb 2017
DOIs	https://doi.org/10.1063/1.4975765
Publication status	Published - 14 Feb 2017

Access to Document

10.1063/1.4975765

https://pubs.aip.org/aip/jcp/article/146/6/064306/316054

Cite this

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title = "Ultrafast internal conversion dynamics of highly excited pyrrole studied with VUV/UV pump probe spectroscopy",

abstract = "We study the relaxation dynamics of pyrrole after excitation with an 8 eV pump pulse to a state just 0.2 eV below the ionization potential using vacuum ultraviolet/ultraviolet pump probe spectroscopy. Our measurements in conjunction with electronic structure calculations indicate that pyrrole undergoes rapid internal conversion to the ground state in less than 300 fs. We find that internal conversion to the ground state dominates over dissociation.",

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AU - Liu, Yusong

AU - Chakraborty, Pratip

AU - Matsika, Spiridoula

AU - Weinacht, Thomas

PY - 2017/2/14

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N2 - We study the relaxation dynamics of pyrrole after excitation with an 8 eV pump pulse to a state just 0.2 eV below the ionization potential using vacuum ultraviolet/ultraviolet pump probe spectroscopy. Our measurements in conjunction with electronic structure calculations indicate that pyrrole undergoes rapid internal conversion to the ground state in less than 300 fs. We find that internal conversion to the ground state dominates over dissociation.

AB - We study the relaxation dynamics of pyrrole after excitation with an 8 eV pump pulse to a state just 0.2 eV below the ionization potential using vacuum ultraviolet/ultraviolet pump probe spectroscopy. Our measurements in conjunction with electronic structure calculations indicate that pyrrole undergoes rapid internal conversion to the ground state in less than 300 fs. We find that internal conversion to the ground state dominates over dissociation.

U2 - 10.1063/1.4975765

DO - 10.1063/1.4975765

M3 - Article

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VL - 146

JO - The Journal of Chemical Physics

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