Reaction between trimethylindium and tetraborane(10) at room temperature yields the volatile, viscous liquid dimethylindium octahydrotriborate, the first reported example of a volatile indium hydride; spectroscopic properties of the vapour indicate a molecular structure akin to that of Me2AlB3H8, although the crystal structure implies a more ionic formulation, [Me2In]+[B3H8]-, with the coordination at each indium centre being augmented via secondary intermolecular interactions with terminal hydrogen atoms.
