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Room-Temperature and Solution-State Observation of the Mixed-Valence Cation Radical Dimer of Tetrathiafulvalene, [(TTF) 2 ] +• , within a Self-Assembled Cage

2005; American Chemical Society; Volume: 127; Issue: 39 Linguagem: Inglês

10.1021/ja053508g

1943-2984

Michito Yoshizawa, Kazuhisa Kumazawa, Makoto Fujita,

Lanthanide and Transition Metal Complexes

A mixed-valence state of the cation radical tetrathiafulvalene dimer, [(TTF)2]+*, is generated by the electrochemical oxidation of a stacked TTF dimer accommodated within an organic-pillared coordination cage. This mixed-valence species is remarkably stable (t1/2 = approximately 1 day at room temperature in aqueous solution under air) and clearly characterized by cyclic voltammogram and electronic absorption spectroscopy.