Engineering soluble diketopyrrolopyrrole chromophore stacks from a series of Pd(II)‐based ravels

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dc.contributor.authorRegeni, Irene
dc.contributor.authorChowdhury, Rituparno
dc.contributor.authorTerlinden, Kai
dc.contributor.authorHoriuchi, Shinnosuke
dc.contributor.authorHolstein, Julian J.
dc.contributor.authorFeldmann, Sascha
dc.contributor.authorClever, Guido H.
dc.date.accessioned2024-11-21T09:29:26Z
dc.date.available2024-11-21T09:29:26Z
dc.date.issued2023-07-17
dc.description.abstractA strategy to engineer the stacking of diketopyrrolopyrrole (DPP) dyes based on non-statistical metallosupramolecular self-assembly is introduced. For this, the DPP backbone is equipped with nitrogen-based donors that allow for different discrete assemblies to be formed upon the addition of Pd(II), distinguished by the number of π-stacked chromophores. A Pd3L6 three-ring, a heteroleptic Pd2L2L′2 ravel composed of two crossing DPPs (flanked by two carbazoles), and two unprecedented self-penetrated motifs (a Pd2L3 triple and a Pd2L4 quadruple stack), were obtained and systematically investigated. With increasing counts of stacked chromophores, UV/Vis absorptions red-shift and emission intensities decrease, except for compound Pd2L2L′2, which stands out with an exceptional photoluminescence quantum yield of 51 %. This is extraordinary for open-shell metal containing assemblies and explainable by an intra-assembly FRET process. The modular design and synthesis of soluble multi-chromophore building blocks offers the potential for the preparation of nanodevices and materials with applications in sensing, photo-redox catalysis and optics.en
dc.identifier.urihttp://hdl.handle.net/2003/42800
dc.identifier.urihttp://dx.doi.org/10.17877/DE290R-24633
dc.language.isoen
dc.relation.ispartofseriesAngewandte Chemie / International edition; 62(40)
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subjectChromophoresen
dc.subjectCoordination cagesen
dc.subjectEnergy transferen
dc.subjectSelf-assemblyen
dc.subjectSupramolecular chemistryen
dc.subject.ddc540
dc.titleEngineering soluble diketopyrrolopyrrole chromophore stacks from a series of Pd(II)‐based ravelsen
dc.typeText
dc.type.publicationtypeResearchArticle
dcterms.accessRightsopen access
eldorado.openaire.projectidentifierinfo:eu-repo/grantAgreement/EC/H2020/683083/EU/Reactivity and Assembly of Multifunctional, Stimuli-responsive Encapsulation Structures/RAMSES
eldorado.secondarypublicationtrue
eldorado.secondarypublication.primarycitationI. Regeni, R. Chowdhury, K. Terlinden, S. Horiuchi, J. J. Holstein, S. Feldmann, G. H. Clever, Angew. Chem. Int. Ed. 2023, 62, e202308288.
eldorado.secondarypublication.primaryidentifierhttps://doi.org/10.1002/anie.202308288

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