Collect. Czech. Chem. Commun. 1996, 61, 1773-1782

Polyhedral Azaborane Chemistry: NMR Parameters for the Unique Eight-Boron Polyhedral Species [(C2H5NH2)B8H11NHC2H5]

Peter MacKinnon, Xavier L. R. Fontaine, John D. Kennedy and Paul A. Salter

School Of Chemistry, University of Leeds, Leeds LS2 9JT, England


Boron (11B) and hydrogen (1H) NMR parameters have been measured for the unique polyhedral azaborane species [(NH2Et)B8H11NHEt)] using single- and double-resonance experiments and two-dimensional shift-correlation methods. Comparison with the NMR properties of other eight-boron species, in particular arachno-[B8H12(PMe2Ph)], suggests that cluster of [(NH2Et)B8H11NHEt] may be better regarded as being of hypho character, rather than of arachno character as previously supposed.

Keywords: Borane; Azaborane; Cluster; NMR.