CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE –Bretagne Pays de la Loire Delegation – UMR6521 – Chimie, électrochimie moléculaires et chimie analytique (CEMCA)

CEMCA is a “unité mixte de recherche (UMR)” of CNRS at Université de Bretagne Occidentale (UBO) in Brest (France). The lab is composed of about 25 researchers dispatched in two teams: one is specialised in inorganic chemistry (CIEl) and the other one in organic chemistry (COSM).

As a member of CIEl, the partner’s group has a strong expertise in molecular electrochemistry and analytical chemistry. We are interested in the electrochemical reactivity of organometallic complexes. We use the tools of electrochemistry (cyclic voltammetry), spectroscopy (IR and UV-vis absorption)  and computational chemistry (DFT calculations) to investigate thermodynamic and kinetic aspects of the reduction and oxidation of transition metal complexes, and thus the mechanisms of induced chemical and catalytic reactions. Current topics include hydrogen (H2) production by synthetic models of hydrogenase enzymes, and proton coupled electron transfers (PCET).

Our group is involved in several national and international (USA, Sweden, China) cooperation and is a member of two French research networks :  FrenchBIC ( and GDR Solar Fuel (

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