Issue 1, 2014

Group 5 hydride and borohydride complexes supported by cyclopentadienyl-imido ligand sets

Abstract

Reactions of Cp*Ta(NAr)Cl2 and CpM(NAr)Cl2 (M = Nb, Ta; Ar = 2,6-C6H3iPr2) with NaBH4 in the presence of an excess of PMe3 provided facile access to the corresponding dihydride derivatives CpRM(NAr)H2(PMe3) (CpR = Cp, Cp*). Reaction of Cp*Nb(NAr)Cl2 with NaBH4 in the absence of phosphine gave the Nb(+5) borohydride–hydride complex Cp*Nb(NAr)H(η2-BH4). When the corresponding reactions for CpM(NAr)Cl2 (M = Nb, Ta) were carried out in the absence of an excess of phosphine, dimeric MIV products [CpM(μ-NAr)(η2-BH4)]2 containing M–M single bonds were formed.

Graphical abstract: Group 5 hydride and borohydride complexes supported by cyclopentadienyl-imido ligand sets

Supplementary files

Article information

Article type
Paper
Submitted
10 Sep 2013
Accepted
05 Oct 2013
First published
08 Oct 2013

Dalton Trans., 2014,43, 188-195

Group 5 hydride and borohydride complexes supported by cyclopentadienyl-imido ligand sets

N. A. McLeod, L. G. Kuzmina, A. V. Churakov, P. Mountford and G. I. Nikonov, Dalton Trans., 2014, 43, 188 DOI: 10.1039/C3DT52489B

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