Core-valence double ionization of carbon suboxide | Research Square window.SnipcartSettings = { analytics: { enabled: false } }; (function() { var accessVector = localStorage.getItem('access_vector') || ''; window.dataLayer = window.dataLayer || []; if (accessVector) { window.dataLayer.push({ user: { profile: { profileInfo: { snid: accessVector } } } }); } })(); (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-K279D39R'); Browse Preprints In Review Journals COVID-19 Preprints AJE Video Bytes Research Tools Research Promotion AJE Professional Editing AJE Rubriq About Preprint Platform In Review Editorial Policies Our Team Advisory Board Help Center Sign In Submit a Preprint Cite Share Download PDF Article Core-valence double ionization of carbon suboxide Emelie Olsson, Lucas M. Cornetta, Veronica Daver Ideböhn, Måns Wallner, and 8 more This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-6221351/v1 This work is licensed under a CC BY 4.0 License Status: Published Journal Publication published 06 May, 2025 Read the published version in Scientific Reports → Version 1 posted 10 You are reading this latest preprint version Abstract We have measured the core-valence double ionization spectra of carbon suboxide above both the O 1s and C 1s edges. The spectra are compared with the well-known single ionization valence photoelectron spectrum of this system, from which they differ quite strongly. Auger decay following C 1s hole formation at the chemically distinct central and outer C atoms shows strong selectivity in the final multiply charged states produced. Assignment of the spectral features is made by comparing with calculations at the sudden approximation and assuming decoupling of the core and valence ionization events. Physical sciences/Physics/Atomic and molecular physics/Atomic and molecular interactions with photons Physical sciences/Physics/Atomic and molecular physics/Electronic structure of atoms and molecules Full Text Additional Declarations No competing interests reported. Supplementary Files SupplementaryMaterialscarbonsuboxide.pdf Cite Share Download PDF Status: Published Journal Publication published 06 May, 2025 Read the published version in Scientific Reports → Version 1 posted Editorial decision: Revision requested 14 Apr, 2025 Reviews received at journal 08 Apr, 2025 Reviews received at journal 30 Mar, 2025 Reviewers agreed at journal 24 Mar, 2025 Reviewers agreed at journal 23 Mar, 2025 Reviewers invited by journal 23 Mar, 2025 Editor assigned by journal 18 Mar, 2025 Editor invited by journal 17 Mar, 2025 Submission checks completed at journal 14 Mar, 2025 First submitted to journal 13 Mar, 2025 You are reading this latest preprint version Research Square lets you share your work early, gain feedback from the community, and start making changes to your manuscript prior to peer review in a journal. As a division of Research Square Company, we’re committed to making research communication faster, fairer, and more useful. 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Also discoverable on Platform About Our Team In Review Editorial Policies Advisory Board Help Center Resources Author Services Accessibility API Access RSS feed Manage Cookie Preferences © Research Square 2026 | ISSN 2693-5015 (online) Privacy Policy Terms of Service Do Not Sell My Personal Information {"props":{"pageProps":{"initialData":{"identity":"rs-6221351","acceptedTermsAndConditions":true,"allowDirectSubmit":false,"archivedVersions":[],"articleType":"Article","associatedPublications":[],"authors":[{"id":435940986,"identity":"4d2b08b1-28b3-4151-af55-a08b7c144d5e","order_by":0,"name":"Emelie Olsson","email":"","orcid":"","institution":"University of Gothenburg","correspondingAuthor":false,"prefix":"","firstName":"Emelie","middleName":"","lastName":"Olsson","suffix":""},{"id":435940987,"identity":"334350d1-d10e-4f3b-9d5f-a8a8d5a60a34","order_by":1,"name":"Lucas M. 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