title: Molecular machines based on metal ion translocation.
abstract: Transition metal ions can be moved reversibly between the two coordinatively unequivalent compartments A and B of a ditopic ligand, using as an input the variation of a bulk solution parameter, either pH or redox potential. In a redox-driven translocation, the metal moves reversibly from A to B on cycling between two consecutive oxidation states (e.g., Cu(II)/Cu(I); Fe(III)/Fe(II)) by means of auxiliary oxidation and reduction reactions. In a pH-driven process, one compartment displays also acid-base properties (AH(n)() left arrow over right arrow A(n)(-) + nH(+)), and the M(n)(+) ion is translocated between B and A(n)(-) through consecutive addition of base and acid.
authors: Dipartimento di Chimica Generale, Università di Pavia, via Taramelli 12, I-27100 Pavia, Italy.
authors: V
authors: V
authors: Amendola
authors: L
authors: L
authors: Fabbrizzi
authors: C
authors: C
authors: Mangano
authors: P
authors: P
authors: Pallavicini
mesh_terms: D019216:Metals, Heavy / Q000737:chemistry*; D008958:Models, Molecular; D020409:Molecular Motor Proteins / Q000737:chemistry*; D009038:Motion; D009942:Organometallic Compounds / Q000737:chemistry; D010084:Oxidation-Reduction
chemical_list: D019216:Metals, Heavy; D020409:Molecular Motor Proteins; D009942:Organometallic Compounds