Di-benzoquinone Cyclopentadithiophene Diradicaloids Show Spin-States Optical Transitions and Anomalous NIR Emission

We have prepared a series of bis(semiquinone) compounds with dithiophene bridges of different length that evolve from closed-shell (smaller compound) to full diradical (longer compound) for which the narrow singlet-triplet energy gap allows the triplet population at 298 K. The medium size system has...

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Autores: Privado Urda, María, Moles , Sergio, Casanova , David, Casado , Juan, Barrejón Araque, Miriam, Cruz Manrique, María Pilar de la, Langa de la Puente, Fernando
Tipo de recurso: artículo
Fecha de publicación:2024
País:España
Institución:Universidad de Castilla-La Mancha
Repositorio:RUIdeRA. Repositorio Institucional de la UCLM
OAI Identifier:oai:ruidera.uclm.es:10578/40190
Acceso en línea:https://hdl.handle.net/10578/40190
Access Level:acceso abierto
Palabra clave:Diradicaloids
Dithiophene oligomers
Intersystem crossing
Kasha rule
Singlet-triplet gap
Thermal spin-crossover
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spelling Di-benzoquinone Cyclopentadithiophene Diradicaloids Show Spin-States Optical Transitions and Anomalous NIR EmissionPrivado Urda, MaríaMoles , SergioCasanova , DavidCasado , JuanBarrejón Araque, MiriamCruz Manrique, María Pilar de laLanga de la Puente, FernandoDiradicaloidsDithiophene oligomersIntersystem crossingKasha ruleSinglet-triplet gapThermal spin-crossoverWe have prepared a series of bis(semiquinone) compounds with dithiophene bridges of different length that evolve from closed-shell (smaller compound) to full diradical (longer compound) for which the narrow singlet-triplet energy gap allows the triplet population at 298 K. The medium size system has a variety of photonic properties with absorptions and emission in the optical near-infrared region mediated by a unique case of anti-Kasha emission. A whole set of optical absorption/emission and vibrational steady state spectroscopies as well as picosecond transient absorption spectroscopy, all complemented with spectroelectrochemistry and theoretical calculations, is presented.Wiley202520252024info:eu-repo/semantics/articleapplication/pdfapplication/pdfhttps://hdl.handle.net/10578/40190reponame:RUIdeRA. Repositorio Institucional de la UCLMinstname:Universidad de Castilla-La ManchaInglésinfo:eu-repo/semantics/openAccessoai:ruidera.uclm.es:10578/401902026-05-27T07:36:41Z
dc.title.none.fl_str_mv Di-benzoquinone Cyclopentadithiophene Diradicaloids Show Spin-States Optical Transitions and Anomalous NIR Emission
title Di-benzoquinone Cyclopentadithiophene Diradicaloids Show Spin-States Optical Transitions and Anomalous NIR Emission
spellingShingle Di-benzoquinone Cyclopentadithiophene Diradicaloids Show Spin-States Optical Transitions and Anomalous NIR Emission
Privado Urda, María
Diradicaloids
Dithiophene oligomers
Intersystem crossing
Kasha rule
Singlet-triplet gap
Thermal spin-crossover
title_short Di-benzoquinone Cyclopentadithiophene Diradicaloids Show Spin-States Optical Transitions and Anomalous NIR Emission
title_full Di-benzoquinone Cyclopentadithiophene Diradicaloids Show Spin-States Optical Transitions and Anomalous NIR Emission
title_fullStr Di-benzoquinone Cyclopentadithiophene Diradicaloids Show Spin-States Optical Transitions and Anomalous NIR Emission
title_full_unstemmed Di-benzoquinone Cyclopentadithiophene Diradicaloids Show Spin-States Optical Transitions and Anomalous NIR Emission
title_sort Di-benzoquinone Cyclopentadithiophene Diradicaloids Show Spin-States Optical Transitions and Anomalous NIR Emission
dc.creator.none.fl_str_mv Privado Urda, María
Moles , Sergio
Casanova , David
Casado , Juan
Barrejón Araque, Miriam
Cruz Manrique, María Pilar de la
Langa de la Puente, Fernando
author Privado Urda, María
author_facet Privado Urda, María
Moles , Sergio
Casanova , David
Casado , Juan
Barrejón Araque, Miriam
Cruz Manrique, María Pilar de la
Langa de la Puente, Fernando
author_role author
author2 Moles , Sergio
Casanova , David
Casado , Juan
Barrejón Araque, Miriam
Cruz Manrique, María Pilar de la
Langa de la Puente, Fernando
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv Diradicaloids
Dithiophene oligomers
Intersystem crossing
Kasha rule
Singlet-triplet gap
Thermal spin-crossover
topic Diradicaloids
Dithiophene oligomers
Intersystem crossing
Kasha rule
Singlet-triplet gap
Thermal spin-crossover
description We have prepared a series of bis(semiquinone) compounds with dithiophene bridges of different length that evolve from closed-shell (smaller compound) to full diradical (longer compound) for which the narrow singlet-triplet energy gap allows the triplet population at 298 K. The medium size system has a variety of photonic properties with absorptions and emission in the optical near-infrared region mediated by a unique case of anti-Kasha emission. A whole set of optical absorption/emission and vibrational steady state spectroscopies as well as picosecond transient absorption spectroscopy, all complemented with spectroelectrochemistry and theoretical calculations, is presented.
publishDate 2024
dc.date.none.fl_str_mv 2024
2025
2025
dc.type.none.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/10578/40190
url https://hdl.handle.net/10578/40190
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Wiley
publisher.none.fl_str_mv Wiley
dc.source.none.fl_str_mv reponame:RUIdeRA. Repositorio Institucional de la UCLM
instname:Universidad de Castilla-La Mancha
instname_str Universidad de Castilla-La Mancha
reponame_str RUIdeRA. Repositorio Institucional de la UCLM
collection RUIdeRA. Repositorio Institucional de la UCLM
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869421657770164224
score 15,811543

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