Redox-triggered molecular movement in a multicomponent metal complex in solution and in the solid state.
The Cu(I) and Cu(II) complexes of the new 1,8-diferro-cenylmethyl-4,11-dimethyl-1,4,8,11-tetraazacyclotetra-decane ligand (denoted L) have been isolated and characterized by X-ray structure determination and electrochemical studies. The Cu(I) complex presents an unprecedented stability toward dioxygen. The two complexes adopt two energetically distinct and stable geometries, which differ mainly by the relative positioning of the substituents above or below the cyclam plane. Triggered by a copper-centered electron transfer, a fast and reversible motion of the noncoordinating subunits is obtained in homogeneous solution and in the solid state.
Bucher
Christophe
C
LEOPR, UMR CNRS 5630, Institut de Chimie Moléculaire de Grenoble, ICMG, FR CNRS 2607, Université J. Fourier, BP 53, 38041 Grenoble Cedex 9, France.
Moutet
Jean-Claude
JC
Pécaut
Jacques
J
Royal
Guy
G
Saint-Aman
Eric
E
Thomas
Fabrice
F