One-electron reduction of kinetically stabilized dipnictenes: synthesis of dipnictene anion radicals

Takahiro Sasamori; Eiko Mieda; Noriyoshi Nagahora; Kazunobu Sato; Daisuke Shiomi; Takeji Takui; Yoshinobu Hosoi; Yukio Furukawa; Nozomi Takagi; Shigeru Nagase; Norihiro Tokitoh

doi:10.1021/ja064062m

One-electron reduction of kinetically stabilized dipnictenes: synthesis of dipnictene anion radicals

J Am Chem Soc. 2006 Sep 27;128(38):12582-8. doi: 10.1021/ja064062m.

Authors

Takahiro Sasamori¹, Eiko Mieda, Noriyoshi Nagahora, Kazunobu Sato, Daisuke Shiomi, Takeji Takui, Yoshinobu Hosoi, Yukio Furukawa, Nozomi Takagi, Shigeru Nagase, Norihiro Tokitoh

Affiliation

¹ Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan.

PMID: 16984209
DOI: 10.1021/ja064062m

Abstract

The redox behavior of kinetically stabilized dipnictenes, BbtE=EBbt [E = P, Sb, Bi; Bbt = 2,6-bis[bis(trimethylsilyl)methyl]-4-[tris(trimethylsilyl)methyl]phenyl], was systematically disclosed using cyclic voltammetry and theoretical calculations. It was found that they showed reversible one-electron redox couples in the reduction region. The anion radical species of the Bbt-substituted diphosphene and distibene were successfully synthesized by the reduction of the corresponding neutral dipnictenes (BbtP=PBbt and BbtSb=SbBbt). Their structures were reasonably characterized by ESR, UV-vis, and Raman spectroscopy, and the distibene anion radical was structurally characterized by X-ray crystallographic analysis.