Symmetry Breaking in the Lowest-Lying Excited-State of CCl4: Valence Shell Spectroscopy in the 5.0–10.8 eV Photon Energy Range
| Autor(a) principal: | |
|---|---|
| Data de Publicação: | 2024 |
| Outros Autores: | , , , , , , |
| Tipo de documento: | Artigo |
| Idioma: | eng |
| Título da fonte: | Repositórios Científicos de Acesso Aberto de Portugal (RCAAP) |
| Texto Completo: | http://hdl.handle.net/10362/179272 |
Resumo: | Radiation Biology and Biophysics Doctoral Training Programme (RaBBiT, PD/00193/2012). Copyright: © 2024 by the authors. Licensee MDPI, Basel, Switzerland. |
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Symmetry Breaking in the Lowest-Lying Excited-State of CCl4: Valence Shell Spectroscopy in the 5.0–10.8 eV Photon Energy RangeRadiation Biology and Biophysics Doctoral Training Programme (RaBBiT, PD/00193/2012). Copyright: © 2024 by the authors. Licensee MDPI, Basel, Switzerland.We report absolute high-resolution vacuum ultraviolet (VUV) photoabsorption cross-sections of carbon tetrachloride (CCl4) in the photon energy range 5.0–10.8 eV (248–115 nm). The molecular spectrum and electronic structure have been comprehensively investigated together with quantum chemical calculations, providing geometries, bond lengths, vertical excitation energies and oscillator strengths. The major electronic excitations have been assigned to valence and Rydberg transitions which are also accompanied by vibrational excitation assigned to degenerate stretching, (Formula presented.) and degenerate deformation (Formula presented.) modes. The rather complex nuclear dynamics along the degenerate deformation mode, (Formula presented.), have been thoroughly investigated by Time-Dependent Density Functional Theory (TD-DFT) method. The relevant Jahn–Teller distortion operative within the lowest-lying electronic excited-state is shown here for the first time in order to yield a weak absorption feature at 6.156 eV. Further calculations on the potential energy curves for the singlet excited-states along the C–Cl stretching coordinate show the relevance of efficient C–Cl bond excision.CeFITec – Centro de Física e Investigação TecnológicaDF – Departamento de FísicaRUNDalagnol, Luiz V. S.Kumar, SarveshBarbosa, Alessandra S.Akther, Umma S.Jones, Nykola C.Hoffmann, Søren V.Bettega, Márcio H. F.Limão-Vieira, Paulo2025-02-18T21:19:00Z2024-11-272024-11-27T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10362/179272eng1420-3049PURE: 104527664https://doi.org/10.3390/molecules29235619info:eu-repo/semantics/openAccessreponame:Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)instname:FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologiainstacron:RCAAP2025-02-24T01:48:51Zoai:run.unl.pt:10362/179272Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireinfo@rcaap.ptopendoar:https://opendoar.ac.uk/repository/71602025-05-28T20:40:11.421387Repositórios Científicos de Acesso Aberto de Portugal (RCAAP) - FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologiafalse |
| dc.title.none.fl_str_mv |
Symmetry Breaking in the Lowest-Lying Excited-State of CCl4: Valence Shell Spectroscopy in the 5.0–10.8 eV Photon Energy Range |
| title |
Symmetry Breaking in the Lowest-Lying Excited-State of CCl4: Valence Shell Spectroscopy in the 5.0–10.8 eV Photon Energy Range |
| spellingShingle |
Symmetry Breaking in the Lowest-Lying Excited-State of CCl4: Valence Shell Spectroscopy in the 5.0–10.8 eV Photon Energy Range Dalagnol, Luiz V. S. |
| title_short |
Symmetry Breaking in the Lowest-Lying Excited-State of CCl4: Valence Shell Spectroscopy in the 5.0–10.8 eV Photon Energy Range |
| title_full |
Symmetry Breaking in the Lowest-Lying Excited-State of CCl4: Valence Shell Spectroscopy in the 5.0–10.8 eV Photon Energy Range |
| title_fullStr |
Symmetry Breaking in the Lowest-Lying Excited-State of CCl4: Valence Shell Spectroscopy in the 5.0–10.8 eV Photon Energy Range |
| title_full_unstemmed |
Symmetry Breaking in the Lowest-Lying Excited-State of CCl4: Valence Shell Spectroscopy in the 5.0–10.8 eV Photon Energy Range |
| title_sort |
Symmetry Breaking in the Lowest-Lying Excited-State of CCl4: Valence Shell Spectroscopy in the 5.0–10.8 eV Photon Energy Range |
| author |
Dalagnol, Luiz V. S. |
| author_facet |
Dalagnol, Luiz V. S. Kumar, Sarvesh Barbosa, Alessandra S. Akther, Umma S. Jones, Nykola C. Hoffmann, Søren V. Bettega, Márcio H. F. Limão-Vieira, Paulo |
| author_role |
author |
| author2 |
Kumar, Sarvesh Barbosa, Alessandra S. Akther, Umma S. Jones, Nykola C. Hoffmann, Søren V. Bettega, Márcio H. F. Limão-Vieira, Paulo |
| author2_role |
author author author author author author author |
| dc.contributor.none.fl_str_mv |
CeFITec – Centro de Física e Investigação Tecnológica DF – Departamento de Física RUN |
| dc.contributor.author.fl_str_mv |
Dalagnol, Luiz V. S. Kumar, Sarvesh Barbosa, Alessandra S. Akther, Umma S. Jones, Nykola C. Hoffmann, Søren V. Bettega, Márcio H. F. Limão-Vieira, Paulo |
| description |
Radiation Biology and Biophysics Doctoral Training Programme (RaBBiT, PD/00193/2012). Copyright: © 2024 by the authors. Licensee MDPI, Basel, Switzerland. |
| publishDate |
2024 |
| dc.date.none.fl_str_mv |
2024-11-27 2024-11-27T00:00:00Z 2025-02-18T21:19:00Z |
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info:eu-repo/semantics/publishedVersion |
| dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
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article |
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publishedVersion |
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http://hdl.handle.net/10362/179272 |
| url |
http://hdl.handle.net/10362/179272 |
| dc.language.iso.fl_str_mv |
eng |
| language |
eng |
| dc.relation.none.fl_str_mv |
1420-3049 PURE: 104527664 https://doi.org/10.3390/molecules29235619 |
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info:eu-repo/semantics/openAccess |
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openAccess |
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application/pdf |
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reponame:Repositórios Científicos de Acesso Aberto de Portugal (RCAAP) instname:FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologia instacron:RCAAP |
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Repositórios Científicos de Acesso Aberto de Portugal (RCAAP) - FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologia |
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