Technomimetic molecules [1] are molecules designed to imitate macroscopic objects at the molecular level, also transposing the motions that these objects are able to undergo. Following the bottom-up approach we synthesized a family of electrically addressable molecular motors [2].Our prototypes are based on organometallic ruthenium complexes bearing two different ligands which would act as a rotor and a stator. As shown on the figure below, the stator is a tripodal hydrotris(indazolyl)borate ligand and the rotor is a cyclopentadienyl ligand connected to four or five ferrocene electroactive groups.  The synthesis and characterization of the molecules will be presented as well as a STM study In order to demonstrate the controlled unidirectional rotation [3]. Depending on which part of the rotor subunit is excited by the STM tip, both clockwise and anticlockwise directions could be obtained.[1] G. Rapenne, Org. Biomol. Chem. 2005  , 3, 1165-1169.[2] G. Vives, H.P. Jacquot de Rouville, A. Carella, J.P. Launay, G. Rapenne, Chem. Soc. Rev. 2009  , 38, 1551-1561.[3] U.G.E. Perera, F. Ample, H. Kersell, Y. Zhang, J. Echeverria, M. Grisolia, G. Vives, G. Rapenne, C. Joachim, S.-W. Hla, Nature Nanotech. 2013  , 8, 46.

Controlled clockwise and counterclockwise rotation of a molecular motor

246th National Meeting (2013)

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