Switching Magnetic Properties by a Mechanical Motion

Benjamin Doistau (1) , Lorien Benda (1) , Bernold Hasenknopf (1) , Valérie Marvaud (1) , Guillaume Vives (1)

1 IPCM - Institut Parisien de Chimie Moléculaire

Switching magnetic properties have attracted a wide interest from inorganic chemist for the objectives of information storage and quantum computing at the molecular level. This review is focused on magnetic switches based on a mechanical motion, which is an innovative approach. Three main strategies to control magnetic properties by a mechanical motion have been developed in the literature and will be described. The first one (ligand-induced spin change) consists in modulating the ligand field strength by a configuration change of the ligand in spin-crossover complexes. The second one (coordination-induced spin-state switching) is based on a change in the coordination number of a metallic center that is triggered by the motion of one ligand. The third one uses the modulation of the exchange interaction between two spin-centers by a mechanical motion.

Mots clés: molecular switch; magnetism; molecular machine; LD-CISSS; LD-LISC; photoisomerization; spin crossover

Domaines: Chimie de coordination

Benjamin Doistau, Lorien Benda, Bernold Hasenknopf, Valérie Marvaud, Guillaume Vives. Switching Magnetic Properties by a Mechanical Motion. Magnetochemistry, 2018, 4 (1), pp.5. ⟨10.3390/magnetochemistry4010005⟩. ⟨hal-02397874⟩