Spontaneous N 2 -diboranylation of [W(N 2 ) 2 (dppe) 2 ] with B 2 Br 4 (SMe 2 ) 2 .
Lisa C HaufeMerle ArrowsmithMaximilian DietzAnnalena GärtnerRüdiger BertermannHolger BraunschweigPublished in: Dalton transactions (Cambridge, England : 2003) (2022)
The 1,3-bromoboration of [W(N 2 ) 2 (dppe) 2 ] (dppe = 1,2-bis(diphenylphosphino)ethane) with B 2 Br 4 (SMe 2 ) 2 in the presence of various Lewis bases L yields diboranyldiazenido complexes, with L coordinating either at the terminal or internal boron atom. The 2 : 1 reaction of [W(N 2 ) 2 (dppe) 2 ] and B 2 Br 4 (SMe 2 ) 2 yields a 1,2-bis(diazenido)diborane-bridged ditungsten complex with a fully planar π-conjugated BrWN 2 B 2 Br 2 N 2 WBr core.