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Non-Covalent Interactions between Chiral Phosphate and Lanthanide Ion by Chiroptical Spectroscopy

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    0570042 - ÚOCHB 2023 RIV GB eng J - Journal Article
    Wu, Tao
    Non-Covalent Interactions between Chiral Phosphate and Lanthanide Ion by Chiroptical Spectroscopy.
    Chemistry-Methods. Roč. 2, č. 3 (2022), č. článku e202100061. E-ISSN 2628-9725
    R&D Projects: GA ČR(CZ) GJ19-05974Y
    Institutional support: RVO:61388963
    Keywords : chiral transfer * circularly polarized luminescence * lanthanide spectroscopy * metal-phosphate binding * Raman optical activity
    OECD category: Biophysics
    Method of publishing: Open access
    https://doi.org/10.1002/cmtd.202100061

    Chiroptical spectroscopy is instrumental in chiral recognition studies. Induced circularly polarized luminescence (CPL) of europium(III) aqua ion in optically active phosphate solution was observed on a standard Raman optical activity (ROA) spectrometer. The ROA-CPL method displays characteristic CPL couplet of Eu-phosphate interactions avoiding the participation of costly antenna chromophore. Similar CPL patterns pertaining 5D0→7F1 transition was also observed in other europium(III) complexes able to bind with phosphate. Titration data and simulations revealed the presence of hydrogen bond between the phosphate group and water molecules surrounding the metal core.
    Permanent Link: https://hdl.handle.net/11104/0341411

     
     
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