Molecular Magnetic Switches (MMS)

Since 2009, we have been interested in two kinds of MMS :

Both systems can be reversibly switched between two electronic configurations under the application of external stimuli : light, temperature, pressure, electric field, etc.

This switching between two electronic configurations are accompanied by changes in the physical properties : magnetic, optical, dielectric,...

These changes can be drastic in particular for Fe(II) SCO and cyanide-bridged Fe-Co CT complexes.

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Charge Transfer switchable complexes


redox sxitch + magnetic switch

Since 2016, we have focused our research on MMS cubic molecules. These octametallic M4M'4 cubes are not only beautiful MMS but they also exhibit a remarkable redox behaviour with up to nine reversibly accessible redox states...



We can start the story here, in 2009, with a difficult synthesis of a tridentate facial ligand that we obtained at the mg scale... useless ! Luckily the first step in that synthesis was the preparation of a bidentate ligand, bis(N-methyl-imidazolyl)ketone (named bik), that turns out to be very useful for aobtaining MMS...


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SCO complexes

Polymetallic  SCO complexes

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Monometallic SCO complexes


Oxamate Coordination Chemistry

In this research axis, we more specifically target :

  1. anisotropic magnetic complexes that can show SMM behaviour

  2. magnetic coordination polymers of variable dimensionality

Tipically, two different synthetic strategies are explored :

  1.  serendipity approaches (using wet chemistry approaches and solvothermal syntheses)

  2. rational approach such as the metallo-supramolecular approach

More info in publications


Electro-Active Molecules and Materials

1. Electro-active Coordination Polymers

2. Redox Switches and Electrochromism


Leonardo Curti

Ph. D. Student




Anandi Srinivasan



Functionalization of nanoparticles with TM complexes


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