Collect. Czech. Chem. Commun. 1994, 59, 2244-2252

Nine-Vertex Polyhedral Monoazaborane Chemistry: Synthesis and NMR Characterization of exo-6-Ligand-arachno-4-azanonaboranes(11), 6-L-4-NB8H11

Tomáš Jelíneka, Bohumil Štíbra and John D. Kennedyb

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


Reactions between arachno-4-NB8H13 and Lewis bases L in dichloromethane or without solvent generate the previously unreported series of arachno compounds exo-6-L-arachno-4-NB8H11, where L = pyridine (py), quinoline (quin), isoquinoline (i-quin), urotropine (uro), and MeCN. These are characterized by mass spectrometry together with 11B and 1H NMR spectroscopy. The NMR results permit complete assignment of all resonances and thence permit comparison with the structurally similar compounds exo-6-L-arachno-4-EB8H10 (for E = CH2 or S).