KONTÉ, Yackouba; SYLLA, Mame Seyni; SARR, Aïssatou; GAYE, Papa Aly; DIALLO, Mamoudou; DESPLANCHES, Cédric; GUIONNEAU, Philippe; CHASTANET, Guillaume; BALDÉ, Cherif

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KONTÉ, Yackouba
Laboratoire de Chimie et Physique [LCPM]

SYLLA, Mame Seyni
Laboratoire de Chimie et Physique [LCPM]

SARR, Aïssatou
Laboratoire de Chimie et Physique [LCPM]

Langue

Article de revue

Ce document a été publié dans

European Journal of Biomedical and Pharmaceutical sciences. 2021, vol. 8, n° 3, p. 403-412

Society for Advance Healthcare Research

Résumé en anglais

Molecules are increasingly considered for information processing and sensing applications. Therefore, much research has focused on the improvement of such property changes, especially the ability to observe the switching at room temperature. The relationship between chemical structure and spin state in a transition metal complex has an important bearing on the design of spin crossover materials. Thus, ligand design has been the focus of much attention. It has allowed generation of highly cooperative spin-transition iron (II) complexes to promote hysteretic effects. We present herein the thermal and light-induced magnetic properties of several photoswitchable precursors based on a bidentate ligand (phenanthroline), and a monodentate ligand such as a pyridine or picoline derivative. These results were discussed on the basis of the alkyl-substituted pyridine ligand effects on the magnetic and phtomagnetic properties of mononuclear iron (II) complexes. Interestingly, single crystals were obtained for the 4-cyano-pyridine derivate allowing the X-ray diffraction crystal-structure determination.< Réduire

Mots clés en anglais

Ligand effect

Iron

Spin crossover

LIESST

Magnetic properties

Project ANR

Advanced Materials by Design
Initiative d'excellence de l'Université de Bordeaux
Etude femtoseconde rayons X et optique de la dynamique ultrarapide de photocommutation de matériaux moléculaires magnétiques

Origine

Importé de hal

Unités de recherche

Institut de Chimie de la Matière Condensée de Bordeaux (ICMCB) - UMR 5026