Download PDF
Synfacts 2006(8): 0788-0788  
DOI: 10.1055/s-2006-941958
Synthesis of Materials and Unnatural Products
© Georg Thieme Verlag Stuttgart · New York

A Spin-Aligned Triradical

Contributor(s): Timothy M. Swager, Trisha L. Andrew
E. Fukuzaki, H. Nishide*
Waseda University, Tokyo, Japan
Further Information

Publication History

Publication Date:
21 July 2006 (online)

    Permissions and Reprints

Significance

Compound 1, a triphenylene analogue of a triarylaminium radical, was synthesized and characterized by cyclic voltammetry, EPR spectroscopy and magnetic susceptibility measurements. The authors concluded that the precursor tris(triaryl­amine) is oxidized to 1 at an applied potential of 0.9 V (vs. Ag/AgCl) and that the three unpaired electron spins of 1 align in a ferromagnetic fashion at room temperature such that S = 3/2 for each molecule of 1. The radical was also found to be relatively stable, with a half-life of 1.2 months in (presumably) an acidic CH2Cl2 solution.