abstract8
Paper
J. Chem. Soc., Chem. Commun., 1995, 667 – 668, DOI: 10.1039/C39950000667
Re-identification of the major volatile carbaboranes from the gas-phase reactions of tetraborane(10) and alkynes at 50 °C
Mark A. Fox and Robert Greatrex
Three of the major volatile products from gas-phase reactions of B4H10 with alkynes, previously reported to be the tricarbahexaborane(7) derivatives 2,3-Me2-2,3,4-C3B3H5 2, 2,4-Me2-2,3,4-C3B3H5 3 and 2-Et-3,4-Me2-2,3,4-C3B3H4 4, are now shown to be the new dicarbahexaborane(8) derivatives, 2,4-Me2-2,3-C2B4H6 6, 5-Et-2,3-C2B4H7 7 and 2-Et-3,4-Me2-2,3-C2B4H5 8, respectively; this leaves 2-Me-2,3,4-C3B3H6 1 as the only authentic, well characterised nido-2,3,4-tricarbahexaborane species to have been reported.