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Kinetic stabilization of low-oxidation state and terminal hydrido main group metal complexes by a sterically demanding N,N′-bis(2,6-terphenyl)triazenide

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Abstract

A sterically demanding N,N′-bis(2,6-terphenyl)triazenide was employed to stabilize a number of low-coordinate main group metal terminal hydride complexes. These complexes display enhanced thermal stabilities relative to analogous complexes ligated by β-diketiminates, which we attribute to the steric shielding of the metal hydride moiety by the ligand. We also show this triazenide ligand can stabilize low-oxidation state Group 13 metals. DFT calculations conducted on these triazenide ligated Group 13 metal(I) complexes revealed they possess a narrower HOMO–LUMO gap relative to analogous complexes ligated by other monoanionic N,N′-ligands. In addition, several heteroleptic Group 13 metal(III) and Group 14 metal(II) complexes featuring this triazenide are reported.

Graphical abstract: Kinetic stabilization of low-oxidation state and terminal hydrido main group metal complexes by a sterically demanding N,N′-bis(2,6-terphenyl)triazenide

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Publication details

The article was received on 18 Jun 2019, accepted on 05 Aug 2019 and first published on 06 Aug 2019


Article type: Paper
DOI: 10.1039/C9DT02562F
Dalton Trans., 2019, Advance Article

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    Kinetic stabilization of low-oxidation state and terminal hydrido main group metal complexes by a sterically demanding N,N′-bis(2,6-terphenyl)triazenide

    A. R. Leverett, V. Diachenko, M. L. Cole and A. I. McKay, Dalton Trans., 2019, Advance Article , DOI: 10.1039/C9DT02562F

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