Isolation and molecular structure of the organo-persulfuranes [12-S-6(C6)].
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.
Sato
Soichi
S
Department of Chemistry, University of Tsukuba, Tsukuba, Ibaraki 305-8571, Japan. sato@chem.tsukuba.ac.jp
Matsunaga
Kaoru
K
Horn
Ernst
E
Furukawa
Naomichi
N
Nabeshima
Tatsuya
T