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

0570042 - ÚOCHB 2023 RIV GB eng J - Článek v odborném periodiku
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
Grant CEP: GA ČR(CZ) GJ19-05974Y
Institucionální podpora: RVO:61388963
Klíčová slova: chiral transfer * circularly polarized luminescence * lanthanide spectroscopy * metal-phosphate binding * Raman optical activity
Obor OECD: Biophysics
Způsob publikování: 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.
Trvalý link: https://hdl.handle.net/11104/0341411