title: One-electron reduction of kinetically stabilized dipnictenes: synthesis of dipnictene anion radicals.
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.
authors.affiliation: Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan.
authors.forename: Takahiro
authors.initials: T
authors.lastname: Sasamori
authors.forename: Eiko
authors.initials: E
authors.lastname: Mieda
authors.forename: Noriyoshi
authors.initials: N
authors.lastname: Nagahora
authors.forename: Kazunobu
authors.initials: K
authors.lastname: Sato
authors.forename: Daisuke
authors.initials: D
authors.lastname: Shiomi
authors.forename: Takeji
authors.initials: T
authors.lastname: Takui
authors.forename: Yoshinobu
authors.initials: Y
authors.lastname: Hosoi
authors.forename: Yukio
authors.initials: Y
authors.lastname: Furukawa
authors.forename: Nozomi
authors.initials: N
authors.lastname: Takagi
authors.forename: Shigeru
authors.initials: S
authors.lastname: Nagase
authors.forename: Norihiro
authors.initials: N
authors.lastname: Tokitoh