Collect. Czech. Chem. Commun. 1983, 48, 228-231

Synthesis and structure of iso-C4B18H22

Zbyněk Janoušek, Jaromír Plešek, Bohumil Štíbr and Stanislav Heřmánek

Institute of Inorganic Chemistry, Czechoslovak Academy of Sciences, 250 68 Řež


Iso-C4B18H22 isolated earlier as a minor by-product in the H2CrO4 oxidation of the C2B9H12(-) anion was prepared in 10% yield by thermolysis of 7,8-C2B9H13. The originally suggested structure, 3-(8'-nido-5,6-C2B8H11)-1,2-C2B10H11, is confirmed by the 11B NMR spectra.