Efficient 1400–1600 nm Circularly Polarized Luminescence from a Tuned Chiral Erbium Complex. Issue 34 (12th July 2022)

• Record Type: Journal Article
• Authors: Willis, Oliver G.; Petri, Filippo; Pescitelli, Gennaro; Pucci, Andrea; Cavalli, Enrico; Mandoli, Alessandro; Zinna, Francesco; Di Bari, Lorenzo
• Is Part Of: Angewandte Chemie international edition. Volume 61:Issue 34(2022)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2022-07-12
• Subjects: Circularly Polarized Luminescence -- Lanthanides -- Near Infrared (NIR) -- PyBox; Chemistry -- Periodicals; 540
• DOI: 10.1002/anie.202208326
• Languages: English
• ISSNs: 1433-7851

Abstract

Abstract: Novel chiral Er complexes based on both enantiomers of extended i PrPyBox (2, 6‐Bis[4‐isopropyl‐4, 5‐dihydrooxazol‐2‐yl)]pyridine) show strong near‐infrared circularly polarized luminescence (CPL) within the 1400 to 1600 nm spectral region under 450 nm irradiation. CPL activity in this region, despite being particularly rare, would open the way to potential applications in the domain, e.g., of fiber‐optic telecommunications and free‐space long‐distance optical communications employing circularly polarized light. Moreover, the long wavelength excitation is advantageous for applications in the field of (circularly polarized) microscopy and bioimaging. Abstract : Novel chiral Er complexes of the iPrPyBox ligand, which have extended π‐conjugation, show strong near‐infrared (NIR) circularly polarized luminescence (CPL) between 1400 and 1600 nm. CPL activity in this region, despite being particularly rare, opens the way to potential applications in the domain of fiber‐optic telecommunications, free‐space long‐distance optical communication and bioimaging.