Investigating the (Poly)Radicaloid Nature of Real-World Organic Compounds with DFT-Based Methods
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Título: | Investigating the (Poly)Radicaloid Nature of Real-World Organic Compounds with DFT-Based Methods |
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Autor/es: | Salvitti, Giovanna | Negri, Fabrizia | Pérez-Jiménez, Ángel J. | San-Fabián, Emilio | Casanova, David | Sancho-Garcia, Juan-Carlos |
Grupo/s de investigación o GITE: | Química Cuántica |
Centro, Departamento o Servicio: | Universidad de Alicante. Departamento de Química Física |
Palabras clave: | Organic (poly)radicals | Low- and high-spin states | Finite-temperature DFT | Spin-flip (TD)DFT | ZFS tensor |
Área/s de conocimiento: | Química Física |
Fecha de publicación: | 10-abr-2020 |
Editor: | American Chemical Society |
Cita bibliográfica: | The Journal of Physical Chemistry A. 2020, 124(18): 3590-3600. doi:10.1021/acs.jpca.0c01239 |
Resumen: | Recent advances in the synthesis of stable organic (open-shell) polyradicaloids have opened their application as active compounds for emerging technologies. These systems typically exhibit small energy differences between states with different spin multiplicities, which are intrinsically difficult to calculate by theoretical methods. We thus apply here some DFT-based variants (FT-DFT, SF-DFT, and SF-TDDFT) on a test set of large and real-world molecules, as test systems for which such energy differences are experimentally available, also comparing systematically with RAS-SF results to infer if shortcomings of previous DFT applications are corrected. Additionally, we explore the spin–spin contribution to the ZFS tensor, of high interest for EPR spectroscopy, and derive the spatial extent of the corresponding (photoexcited) triplet state. |
Patrocinador/es: | G.S. acknowledges the Erasmus+ program for a research internship. D.C. is thankful to projects PIBA19-0004 (Eusko Jaurlaritza) and CTQ2016-80955-P from the Spanish Government (MINECO/FEDER). |
URI: | http://hdl.handle.net/10045/106711 |
ISSN: | 1089-5639 (Print) | 1520-5215 (Online) |
DOI: | 10.1021/acs.jpca.0c01239 |
Idioma: | eng |
Tipo: | info:eu-repo/semantics/article |
Derechos: | © 2020 American Chemical Society |
Revisión científica: | si |
Versión del editor: | https://doi.org/10.1021/acs.jpca.0c01239 |
Aparece en las colecciones: | INV - QC - Artículos de Revistas |
Archivos en este ítem:
Archivo | Descripción | Tamaño | Formato | |
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Salvitti_etal_2020_JPhysChemA_final.pdf | Versión final (acceso restringido) | 3,04 MB | Adobe PDF | Abrir Solicitar una copia |
Salvitti_etal_2020_JPhysChemA_accepted.pdf | Accepted Manuscript (acceso abierto) | 558,13 kB | Adobe PDF | Abrir Vista previa |
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