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dc.contributor.authorLee, Haeri-
dc.contributor.authorTessarolo, Jacopo-
dc.contributor.authorLangbehn, Daniel-
dc.contributor.authorBaksi, Ananya-
dc.contributor.authorHerges, Rainer-
dc.contributor.authorClever, Guido H.-
dc.description.abstractStimuli-responsive coordination cages allow reversible control over guest binding and release, relevant for adaptive receptors, carriers, catalysts, and complex systems. Light serves as an advantageous stimulus, as it can be applied with precise spatial and temporal resolution without producing chemical waste products. We report the first Pd-mediated coordination cage based on ligands embedding a diazocine photoswitch. While the thermodynamically more stable cis-photoisomer sloppily assembles to a mixture of species with general formula [Pdncis-L2n], the less stable trans-isomer yields a defined [Pd 2trans-L4] cage that reversibly converts back to the cis-system by irradiation at 530 nm or thermal relaxation. The [Pdncis-L2n] species do not bind a given guest; however, [Pd2trans- L4] is able to encapsulate a bis-sulfonate as long as it is kept assembled, requiring continuous irradiation at 385 nm. In the absence of UV light, thermal relaxation results in back-switching and guest release. Assembly and properties of the system were characterized by a combination of NMR, ion mobility ESI-MS, single- crystal X-ray diffraction, and UV−vis absorption studies.en
dc.relation.ispartofseriesJ. Am. Chem. Soc.;144(7)-
dc.subjectSupramolecular chemistryen
dc.subjectGuest bindingen
dc.subjectLight stimulusen
dc.subjectStimuli responsive coordination cageen
dc.subjectDissipative assemblyen
dc.subjectOut of equilibriumen
dc.titleLight-powered dissipative assembly of diazocine coordination cagesen
dcterms.accessRightsopen access-
eldorado.openaire.projectidentifierinfo:eu-repo/grantAgreement/EC/H2020/683083/EU/Reactivity and Assembly of Multifunctional, Stimuli-responsive Encapsulation Structures/RAMSESde
eldorado.secondarypublication.primaryidentifierDOI: 10.1021/jacs.1c12011de
eldorado.secondarypublication.primarycitationHaeri Lee, Jacopo Tessarolo, Daniel Langbehn, Ananya Baksi, Rainer Herges, and Guido H. Clever: Light-Powered Dissipative Assembly of Diazocine Coordination Cages. Journal of the American Chemical Society 2022 144 (7), 3099-3105 DOI: 10.1021/jacs.1c12011de
Appears in Collections:Lehrstühle für Anorganische Chemie

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