Collect. Czech. Chem. Commun. 1994, 59, 367-373

Nine-Vertex Polyhedral Monothiaborane Chemistry. The First nido Thianonaborane: Isolation and Characterization by NMR of the [nido-9-SB8H9]- Anion, and its Conversion to Compounds of the 6-L-arachno-4-SB8H10 Series (where L = SMe2 and Pyridine)

Josef Holuba, John D. Kennedyb and Bohumil Štíbra

a Institute of Inorganic Chemistry, Academy of Sciences of the Czech Republic, 250 68 Řež, Czech Republic
b School of Chemistry, University of Leeds, Leeds LS2 9JT, U.K.


Deprotonation of 6(exo)-(SMe2)-arachno-4-SB8H10 either by sodium hydride or sodium metal leads to the isolation in high-yield of the [nido-9-SB8H9]- anion, which has been characterized by 11B and 1H NMR spectroscopy. The nido anion can be reconverted to compounds of the 6(exo)-L-arachno-4-SB8H10 series (where L = SMe2 and pyridine) by reaction with Lewis bases (L) followed by acidification with trifluoroacetic acid.