The First Proton-Conducting Metallic Ion-Radical Salts (pages 292–295)
Akane Akutsu-Sato, Hiroki Akutsu, Scott S. Turner, Peter Day, Michael R. Probert, Judith A. K. Howard, Tomoyuki Akutagawa, Sadamu Takeda, Takayoshi Nakamura and Takehiko Mori
Article first published online: 21 DEC 2004 | DOI: 10.1002/anie.200461686
Any old ion? Two bis(ethylenedithio)tetrathiafulvalene (BEDT-TTF) radical salts with ion channels of stacked crown-6 and Cat/H2O molecules (Cat=H3O+ or NH4+) are described. The structures contain alternating BEDT-TTF layers, [(Cat)M(C2O4)3]2− (M=Ga, Cr) layers, and the crown-6 ion channels (see picture). The salts are metallic electrical conductors, and they show high protonic conductivity.