2026/02/01 by Damien W. Chen, Tejas Deshpande, Sybille Collignon +3 · 1 voice
Chemistry · Materials Science · #Luminescence and Fluorescent Materials #Molecular Sensors and Ion Detection #Supramolecular Chemistry and Complexes
paper · pdf · doi:10.1002/anie.2203782
openalex publication_date 2026/02/01 · openalex created_date 2026/02/03 · openalex updated_date 2026/06/19
ions. The cage acts as a potent receptor for squaraine dyes, with a pronounced preference for guests with 2,6-dihydroxyphenyl substituents. This selectivity profile differs from that of previously reported receptors for squaraine dyes. The acridone-based cage itself is non-emissive. Upon its photoexcitation, ultrafast (sub-ps) dark resonance energy transfer (DRET) to the encapsulated squaraine dyes was observed, resulting in bright, near-infrared guest emission, with pseudo-Stokes shifts of up to 440 nm. Upon binding of a chiral dye, chirality transfer to the host could be evidenced by circular dichroism spectroscopy.