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Published on: November 30, 2022
Group 6 Transition-Metal/Boron Frustrated Lewis Pair Templates Activate N2 and Allow its Facile Borylation and
Antoine Simonneau1,2, Raphaël Turrel1,2, Laure Vendier1,2
1CNRS, LCC (Laboratoire de Chimie de Coordination), 205, route de Narbonne, BP44099, 31077, Toulouse Cedex 4, France.
Abstract:
The reaction of trans-[M(N2 )2 (dppe)2 ] (M=Mo, 1Mo , M=W, 1W ) with B(C6 F5 )3 (2) provides the adducts [(dppe)2 M=N=N-B(C6 F5 )3 ] (3) which can be regarded as M/B transition-metal frustrated Lewis pair (TMFLP) templates activating dinitrogen. Easy borylation and silylation of the activated dinitrogen ligands in complexes 3 with a hydroborane and hydrosilane occur by splitting of the B-H and Si-H bonds between the N2 moiety and the perfluoroaryl borane. This reactivity of 3 is reminiscent of conventional frustrated Lewis pair chemistry and constitutes an unprecedented approach for the functionalization of dinitrogen.
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