Tracing the steps of photoinduced chemical reactions in organic molecules by coherent two-dimensional electronic spectroscopy using triggered exchange

Autor:	Patrick Nuernberger, Stefan Ruetzel, Martin Kullmann, Johannes Buback, Tobias Brixner
Rok vydání:	2012
Předmět:	Molecular switch Materials science Chemical physics Ultrafast laser spectroscopy General Physics and Astronomy Tracing Spectroscopy Chemical reaction Electron spectroscopy Ultrashort pulse Organic molecules
Zdroj:	Physical review letters. 110(14)
ISSN:	1079-7114
Popis:	We establish coherent triggered-exchange two-dimensional (TE2D) electronic spectroscopy as an expansion of pump-repump-probe transient absorption spectroscopy and uniquely elucidate the role of higher-lying electronic states in ultrafast photochemistry. As an example, this is demonstrated for a molecular switch present in two ring-open conformations. The formation of a new species---the radical cation---is observed and its precursor state is identified via TE2D.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a1fb0878514b82d20368e847aab06466 https://pubmed.ncbi.nlm.nih.gov/25167047 Zobrazit plný text záznamu