title: Synthesis and characterization of dibenzodioxadiselenafulvalene.
abstract: Dibenzodioxadiselenafulvalene (DBOSF) was prepared and the cis and trans isomers were separated. X-ray crystallographic analysis revealed the presence of Se- - -H and O- - -H hydrogen bonds in both crystals. The electrochemical properties of cis- and trans-DBOSFs together with dibenzotetraoxafulvalene (DBTOF) and cis- and trans-dibenzodioxadithiafulvalenes were investigated by means of cyclic voltammetry and DFT calculation. The electron-donating ability and the stability of oxidized forms of DBOSFs are improved compared with those of DBTOF.
authors.affiliation: Department of Applied Physics and Chemistry, The University of Electro-Communications, Chofu, Tokyo 182-8585, Japan.
authors.forename: Takahiro
authors.initials: T
authors.lastname: Kojima
authors.forename: Kohtaro
authors.initials: K
authors.lastname: Tanaka
authors.forename: Takayuki
authors.initials: T
authors.lastname: Ishida
authors.forename: Takashi
authors.initials: T
authors.lastname: Nogami