Chiral & Luminescent Nano-Magnets
CHEMISTRY & GREEN CHEMISTRY
Duration: NanoX master Internship (8 months part-time in-lab immersion)
6 months full-time internship
Latest starting date: 10/01/2022
Localisation: Laboratoire de Chimie de Coordination du CNRS
205 route de Narbone
This internship project aims the preparation and study of the properties of molecular compounds known as single-molecule magnets. We will focus on chiral rare-earth ion (LnIII) complexes that are luminescent and behave like magnets. The idea behind this project is to probe the synergy between optical and magnetic properties, i.e. a magneto-optical effect, in molecular nano-magnets. Magneto-optical effects rely on a change of light polarization or intensity when propagating through a medium that is altered by the presence of a magnetic field. Since the seminal report by Faraday in 1845, the interplay between light and magnetism has remained a continuous research interest. The hosting group has observed the appearance of a polarization of the light emitted (i.e. CPL) by a complex of Dy when this compound behaved like a magnetic (see illustration).(ref.1) We now seek to design chiral nano-magnets that would exhibit such a magneto-chiral effect for higher temperatures. The student involved in this project will be in charge of the synthesis of a dedicated chiral ligand and the subsequent preparation of the Ln complexes. She/he will participate in the crystal structure analyses of the prepared compounds and in the investigation of the single-molecule magnetic behaviors by magnetometry. At each stage of the project, the student will benefit from the group's expertise and will be trained in different characterization techniques.
1. Concomitant Emergence of Circularly Polarized Luminescence and Single-Molecule Magnet Behavior in Chiral-at-Metal Dy Complex. Inorg. Chem. Front. 2020, 7, 4527. (https://doi.org/10.1039/d0qi00919a) 2. Circularly Polarized Luminescence in Nanoassemblies: Generation, Amplification, and Application Adv. Mat. 2020, 32, 1900110 (https://doi.org/10.1002/adma.201900110)
Areas of expertise:
molecular nano-magnet, single-molecule magnets, chiral complexes
Required skills for the internship:
Basic knowledge in molecular chemistry and synthesis and a marked interest in expanding his or her field of knowledge.