title: Isolation and molecular structure of the organo-persulfuranes [12-S-6(C6)].
abstract: Reactions of bis(2,2'-biphenylylene)sulfuranyl bis(tetrafluoroborate) [(8-S-4(C4)]2+ with organo-lithium reagents (PhLi and MeLi) gave bis(2,2'-biphenylylene)di-C-substituted persulfuranes as a first persulfurane [12-S-6(C6)] having only carbon ligands. These compounds have been characterized by 1H and 13C NMR and mass spectroscopies. The structure of the dimethyl derivative was determined by X-ray crystallographic analysis, revealing that it has a distorted octahedral geometry with the two methyl ligands cis to each other, and subsequently, it was analyzed by an ab initio calculation.
authors.affiliation: Department of Chemistry, University of Tsukuba, Tsukuba, Ibaraki 305-8571, Japan. sato@chem.tsukuba.ac.jp
authors.forename: Soichi
authors.initials: S
authors.lastname: Sato
authors.forename: Kaoru
authors.initials: K
authors.lastname: Matsunaga
authors.forename: Ernst
authors.initials: E
authors.lastname: Horn
authors.forename: Naomichi
authors.initials: N
authors.lastname: Furukawa
authors.forename: Tatsuya
authors.initials: T
authors.lastname: Nabeshima