%0 Journal Article %A Kumar, Amit %A C. Johnson, Heather %A N. Hooper, Thomas %A S. Weller, Andrew %A García Algarra, Andrés %A A. Macgregor, Stuart %T Multiple metal-bound oligomers from Ir-catalysed dehydropolymerisation of H3B$NH3 as probed by experiment and computation %D 2014 %@ 2041-6520 %U http://hdl.handle.net/10498/21336 %X Multiple metal-bound oligomers in the dehydropolymerisation of H3B$NH3 have been observed by electrospray-ionisation mass spectrometry and NMR spectroscopy using the catalytic metal fragment {Ir(PCy3)2(H)2}+. A computational study suggests that sterics dictate whether multiple dehydrogenation/ B–N coupling of amine-boranes H3B$NRR'H (R, R0 ¼ Me or H) is observed, and also demonstrates the experimentally observed requirement for additional amine-borane to promote dehydrocoupling. %~ Universidad de Cádiz