Negative-Ion Formation upon Soft X-ray Photoexcitation of 2-Propanol Article Swipe

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A. Kivimäki , Eetu Pelimanni , Kirill Chernenko , Abdul Rahman Abid , Christian Stråhlman ·

YOU? · · 2025 · Open Access · · DOI: https://doi.org/10.1021/acs.jpca.4c08226

This study investigates the formation of negative ion fragments from gas-phase 2-propanol molecules after interaction with soft X-rays near the O K-edge. The experiment was performed by detecting negative and positive ions in coincidence with time-of-flight spectrometry. The analysis of two- and three-ion coincidence data revealed that nine different anions were produced: H^-, C^-, CH^-, CH₂^-, O^-, OH^-, C₂^-, C₂H^-, and C₃^-. For all anions, the most common three-ion events were those involving two protons. The results highlight the sensitivity of negative-ion/positive-ion coincidence spectroscopy and provide new insight into the fragmentation processes of organic molecules under soft X-ray excitation.

Related Topics

Ion

Chemistry

Lincoln–Kennedy Coincidences Urban Legend

Concepts

Ion Photoexcitation Fragmentation (computing) Chemistry Coincidence Molecule Mass spectrometry Spectroscopy Propanol Analytical Chemistry (journal) Atomic physics Physics Excited state Chromatography Computer science Alternative medicine Methanol Quantum mechanics Organic chemistry Operating system Medicine Pathology

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Type: article
Language: en
Landing Page: https://doi.org/10.1021/acs.jpca.4c08226
PDF: https://pubs.acs.org/doi/pdf/10.1021/acs.jpca.4c08226?ref=article_openPDF
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Related Works: 10
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DOI: https://doi.org/10.1021/acs.jpca.4c08226

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Title: Negative-Ion Formation upon Soft X-ray Photoexcitation of 2-Propanol

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Type: article

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Language: en

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Publication year: 2025

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Publication date: 2025-02-27

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Authors: A. Kivimäki, Eetu Pelimanni, Kirill Chernenko, Abdul Rahman Abid, Christian Stråhlman

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Landing page: https://doi.org/10.1021/acs.jpca.4c08226

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Concepts: Ion, Photoexcitation, Fragmentation (computing), Chemistry, Coincidence, Molecule, Mass spectrometry, Spectroscopy, Propanol, Analytical Chemistry (journal), Atomic physics, Physics, Excited state, Chromatography, Computer science, Alternative medicine, Methanol, Quantum mechanics, Organic chemistry, Operating system, Medicine, Pathology

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