Structural diversity in multinuclear tantalum polyhydrides formed via reductive hydrogenolysis of metal-carbon bonds

Using H2 as a reducing agent, we demonstrate controlled reduction of tri- and tetramethyl tantalum bis(N-heterocyclic carbene)borate complexes to yield low-valent, multinuclear tantalum polyhydrides. Reaction of a Ta(v)Me3 complex with H2 afforded a bimetallic, hydride-bridged Ta(iv) complex. The an...

Full description

Saved in:
Bibliographic Details
Published in:Chemical communications (Cambridge, England) England), 2019-10, Vol.55 (88), p.13263-13266
Main Authors: Fostvedt, Jade I, Lohrey, Trevor D, Bergman, Robert G, Arnold, John
Format: Article
Language:English
Subjects:
Benzene
Bimetals
Coordination compounds
Crystallography
Format
Hydrogenolysis
Infrared spectroscopy
NMR
Nuclear magnetic resonance
Reducing agents
Tantalum
Toluene
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Using H2 as a reducing agent, we demonstrate controlled reduction of tri- and tetramethyl tantalum bis(N-heterocyclic carbene)borate complexes to yield low-valent, multinuclear tantalum polyhydrides. Reaction of a Ta(v)Me3 complex with H2 afforded a bimetallic, hydride-bridged Ta(iv) complex. The analogous reaction of a Ta(v)Me4 complex in benzene or toluene yielded bimetallic Ta(iii) complexes in which both metals are bound to the same face of a μ-η4:η4-arene2- ligand.
ISSN:1359-7345
1364-548X
DOI:10.1039/c9cc07686g