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Pressure- and temperature-induced valence tautomeric interconversion in a o-dioxolene adduct of a
A Caneschi1, A Dei, F Fabrizi de Biani
1Department of Chemistry, University of Florence, Italy.
Chemistry (Weinheim an Der Bergstrasse, Germany)
|October 13, 2001
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.