Luminescent chiral molecular glasses by melt-quenching enantiopure BINAP

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dc.contributor.authorKrittametaporn, Nuttaporn
dc.contributor.authorRalle, Philipp
dc.contributor.authorDierks, Dorothea
dc.contributor.authorNelle, Christian
dc.contributor.authorVasa, Suresh K.
dc.contributor.authorKolodzeiski, Pascal
dc.contributor.authorLinser, Rasmus
dc.contributor.authorSteffen, Andreas
dc.contributor.authorHenke, Sebastian
dc.date.accessioned2026-01-15T06:59:41Z
dc.date.available2026-01-15T06:59:41Z
dc.date.issued2025-11-23
dc.description.abstractChiral organic glasses combine unique optical properties with the processing advantages of amorphous solids. Here, melt-quenching as a strategy for preparing optically active glasses from enantiopure BINAP (2,2′-bis(diphenylphosphino)-1,1′-binaphthyl), a pivotal ligand in asymmetric catalysis and for luminescent metal complexes is demonstrated. Thermal characterization reveals that only R-BINAP and S-BINAP, not rac-BINAP, form molecular glasses with glass transition temperatures near 100 °C. Pair distribution function analysis and circular dichroism confirm the retention of local structure and homochirality despite the loss of long-range order. Remarkably, the glassy state has a beneficial influence on the molecular optoelectronic properties relative to the crystalline state, resulting in an increase of the radiative rate constant by ≈30%, attributed to more favourable Franck-Condon factors. In addition, a highly unusual simultaneous enhancement of circularly polarized luminescence (CPL) by nearly an order of magnitude is observed, achieving dissymmetry factors |glum| approaching 10−2 that are competitive with the top-performing purely organic molecular chiral emitters reported to date. These findings establish melt-quenched chiral molecular glasses as promising platforms for advanced optoelectronic and photonic materials, combining exceptional chiroptical properties, strong luminescence, and processability without the constraints of crystallinity.en
dc.identifier.urihttp://hdl.handle.net/2003/44674
dc.language.isoen
dc.relation.ispartofseriesAdvanced science
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subjectamorphous materialsen
dc.subjectcircularly polarized luminescenceen
dc.subjectmelt-quenchingen
dc.subjectmolecular glassesen
dc.subjectoptical materialsen
dc.subject.ddc540
dc.subject.rswkAmorpher Festkörper
dc.subject.rswkLumineszenz
dc.subject.rswkZirkularpolarisation
dc.subject.rswkSchmelzen
dc.subject.rswkQuenching
dc.subject.rswkOptischer Werkstoff
dc.titleLuminescent chiral molecular glasses by melt-quenching enantiopure BINAPen
dc.typeText
dc.type.publicationtypeResearchArticle
dcterms.accessRightsopen access
eldorado.dnb.deposittrue
eldorado.doi.registerfalse
eldorado.secondarypublicationtrue
eldorado.secondarypublication.primarycitationN. Krittametaporn, P. Ralle, D. Dierks, et al. “ Luminescent Chiral Molecular Glasses by Melt-Quenching Enantiopure BINAP.” Adv. Sci. (2025): e18879. https://doi.org/10.1002/advs.202518879
eldorado.secondarypublication.primaryidentifierhttps://doi.org/10.1002/advs.202518879

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