Bridge editing of spin-flip emitters gives insight into excited state energies and dynamics

dc.contributor.authorReichenauer, Florian
dc.contributor.authorNaumann, Robert
dc.contributor.authorFörster, Christoph
dc.contributor.authorKitzmann, Winald R.
dc.contributor.authorReponen, Antti-Pekka M.
dc.contributor.authorFeldmann, Sascha
dc.contributor.authorHeinze, Katja
dc.date.accessioned2025-01-10T09:51:50Z
dc.date.available2025-01-10T09:51:50Z
dc.date.issued2024
dc.description.abstractSix-coordinate chromium(III) complexes with high spin-flip (SF) photoluminescence quantum yields and lifetimes (molecular rubies) have attracted huge interest in the past years due to their applicability in sensing, photocatalysis or circularly polarised emission. However, clearcut design rules for high quantum yields and lifetimes are still lacking due to the multidimensional problem of the non-radiative decay of the SF states. Based on an isostructural series of complexes differing in the ligand backbone, we disentangle decisive structural and electronic features for SF excited state energies and non-radiative decays promoted by spin–orbit coupling, Jahn–Teller distortions and (thermally activated) multiphonon relaxation. This analysis goes beyond the classical increasing of the ligand field strength or the metal–ligand covalency to reduce non-radiative decay or to tune the SF energy. The results underscore the utility of the combination of near-infrared absorption, variable temperature emission and fs-transient absorption spectroscopy as well as photolysis and high-level quantum chemical calculations to obtain a comprehensive picture of the excited dynamics on ultrafast and long timescales.en_GB
dc.identifier.doihttp://doi.org/10.25358/openscience-11226
dc.identifier.urihttps://openscience.ub.uni-mainz.de/handle/20.500.12030/11247
dc.language.isoengde
dc.rightsCC-BY-4.0*
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/*
dc.subject.ddc540 Chemiede_DE
dc.subject.ddc540 Chemistry and allied sciencesen_GB
dc.titleBridge editing of spin-flip emitters gives insight into excited state energies and dynamicsen_GB
dc.typeZeitschriftenaufsatzde
jgu.journal.titleChemical sciencede
jgu.journal.volume15de
jgu.organisation.departmentFB 09 Chemie, Pharmazie u. Geowissensch.de
jgu.organisation.nameJohannes Gutenberg-Universität Mainz
jgu.organisation.number7950
jgu.organisation.placeMainz
jgu.organisation.rorhttps://ror.org/023b0x485
jgu.pages.end20262de
jgu.pages.start20251de
jgu.publisher.doi10.1039/d4sc05860gde
jgu.publisher.issn2041-6539de
jgu.publisher.nameRoyal Society of Chemistryde
jgu.publisher.placeCambridgede
jgu.publisher.year2024
jgu.rights.accessrightsopenAccess
jgu.subject.ddccode540de
jgu.subject.dfgNaturwissenschaftende
jgu.type.dinitypeArticleen_GB
jgu.type.resourceTextde
jgu.type.versionPublished versionde

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