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Chiral coordination complexes and their magneto-chiroptical properties


Magnetism and chirality, being rather distinct at a first glance, are intimately linked via the light-matter interaction, giving rise to novel magneto-chiroptical effects, such as magnetochiral dichroism, magnetism-induced second-harmonic generation and multiferrocity. In this project we will study a variety of chiral complexes, including polynuclear helices, an isostructural series of mononuclear propeller compounds, and Fe(II) species (see figure), using coordination chemistry to tune their magnetic and chiral properties. Along with the synthesis and characterization (X-ray diffraction, CD spectroscopy) of these complexes, advanced characterization in partnership with experts in magnetochiral dichroism, vibrational optical activity, magnetism-induced NLO properties, and X-ray natural and magnetochiral dichroism, will be pursued.

Examples of proposed complexes : a) an extended metal atom chain with helical wrapping of ligands around the metal axis : b) a chiral helicate ; c) M(en)3∙(NO3)2 (M = transition metal) and d) an example of an Fe(II) based complex for the study of spin-state switching.

Student profile : Masters in molecular chemistry, experience in molecular synthesis, interest in the physical characterization of compounds and in physical chemistry

- Elizabeth HILLARD
Centre de Recherche Paul Pascal (CRPP) UMR 5031
115 Av Schweitzer, 33600 Pessac, FRANCE ;
E-mail : Elizabeth HILLARD ; Tél : 05 56 84 56 24

- Patrick ROSA
Institut de Chimie de la Matière Condensée de Bordeaux 87 Av Schweitzer, 33608 PESSAC cedex, FRANCE ;
E-mail : Patrick ROSA ; Tél : 05 40 00 25 44