title: Pressure- and temperature-induced valence tautomeric interconversion in a o-dioxolene adduct of a cobalt-tetraazamacrocycle complex.
abstract: An electronic switch at the molecular level has been realized by using a class of ionic compounds of the formula [Co(L)(diox)]Y (L = tetraazamacrocyclic ligand, Y = mononegative anion). Such compounds undergo temperature- and pressure-induced intramolecular one-electron transfer equilibria. The transition temperature of interconversion varies with the nature of the counterions Y (Y = PF6, BPh4, I). Surprisingly the effect of the anion on the transition temperature is not only governed by its volume but also by its coulombic interaction.
authors.affiliation: Department of Chemistry, University of Florence, Italy.
authors.forename: A
authors.initials: A
authors.lastname: Caneschi
authors.forename: A
authors.initials: A
authors.lastname: Dei
authors.forename: F
authors.initials: F
authors.lastname: Fabrizi de Biani
authors.forename: P
authors.initials: P
authors.lastname: Gütlich
authors.forename: V
authors.initials: V
authors.lastname: Ksenofontov
authors.forename: G
authors.initials: G
authors.lastname: Levchenko
authors.forename: A
authors.initials: A
authors.lastname: Hoefer
authors.forename: F
authors.initials: F
authors.lastname: Renz