Direct observation of ligand transfer and bond formation in cytochrome c oxidase using mid-infrared chirped-pulse upconversion

Johanne Treuffet (1) , Kevin J. Kubarych (1, 2) , Jean-Christophe Lambry (1) , Eric Pilet (1, 3) , Jean-Baptiste Masson (1) , Jean-Louis Martin (1) , Marten H. Vos (1) , Manuel Joffre (1) , Antigoni Alexandrou (1)

1 LOB - Laboratoire d'optique et biosciences
2 Department of Chemistry
3 LCBM - UMR 5249 - Laboratoire de Chimie et Biologie des Métaux

We time resolved the CO ligand transfer process in the bimetallic active site of cytochrome c oxidase, using mid-infrared chirped-pulse upconversion to observe the full vibrational signature of Fe-CO bond breaking and CuB-CO bond formation.

Johanne Treuffet, Kevin J. Kubarych, Jean-Christophe Lambry, Eric Pilet, Jean-Baptiste Masson, et al.. Direct observation of ligand transfer and bond formation in cytochrome c oxidase using mid-infrared chirped-pulse upconversion. ULTRAFAST PHENOMENA XVI, Jun 2008, Stresa, Italy. pp.541-543, ⟨10.1007/978-3-540-95946-5_175⟩. ⟨hal-00324257⟩