The simplest amino‐borane H2B=NH2 trapped on a rhodium dimer : pre‐catalysts for amine–borane dehydropolymerization
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The μ‐amino–borane complexes [Rh2(LR)2(μ‐H)(μ‐H2B=NHR′)][BArF4] (LR=R2P(CH2)3PR2; R=Ph, iPr; R′=H, Me) form by addition of H3B⋅NMeR′H2 to [Rh(LR)(η6‐C6H5F)][BArF4]. DFT calculations demonstrate that the amino–borane interacts with the Rh centers through strong Rh‐H and Rh‐B interactions. Mechanistic investigations show that these dimers can form by a boronium‐mediated route, and are pre‐catalysts for amine‐borane dehydropolymerization, suggesting a possible role for bimetallic motifs in catalysis
Kumar , A , Beatie , N , Pike , S A , Macgregor , S A & Weller , A S 2016 , ' The simplest amino‐borane H 2 B=NH 2 trapped on a rhodium dimer : pre‐catalysts for amine–borane dehydropolymerization ' , Angewandte Chemie International Edition , vol. 55 , no. 23 , pp. 6651-6656 . https://doi.org/10.1002/anie.201600898
Angewandte Chemie International Edition
Copyright © 2016 The Authors. Published by Wiley-VCH Verlag GmbH & Co. KGaA. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
DescriptionFunding: The EPSRC (A.S.W. and S.A.M., EP/M024210/1; N.A.B., DTP Studentship), the Rhodes Trust (A.K.), G. M. Adams (G. P. C. analysis).
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