SYNTHESIS AND CRYSTAL-STRUCTURE OF A NOVEL FUSED POLYHEDRAL BORANE DIANION, [B22H22](2-) - POTENTIAL PRECURSOR FOR USE IN BORON NEUTRON-CAPTURE THERAPY (BNCT) OF CANCER
Ns. Hosmane et al., SYNTHESIS AND CRYSTAL-STRUCTURE OF A NOVEL FUSED POLYHEDRAL BORANE DIANION, [B22H22](2-) - POTENTIAL PRECURSOR FOR USE IN BORON NEUTRON-CAPTURE THERAPY (BNCT) OF CANCER, Silicon, germanium, tin and lead compounds, 21(6), 1998, pp. 319-324
A novel polyhedral borane cluster, {[(eta(5)-C5H5)Fe(eta(5)-C5H4CH2(Me
)(3)N)](2)(+) [B22H22](2-)} (1), was synthesized in 60% yield from the
oxidative coupling reaction involving [B11H14](-) ions in a mixed aqu
eous and organic media. The single crystal X-ray diffraction analysis
of 1 showed it to be a fused polyhedron in which an open (nido) decabo
rane cage is fused to a closed (closo) dodecaborane cluster by elimina
ting two bridging hydrogens on the B-10-cage and two terminal hydrogen
s on the B-12-cluster.