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Issue 26, 2019
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A d10 Ag(i) amine–borane σ-complex and comparison with a d8 Rh(i) analogue: structures on the η1 to η22 continuum

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Abstract

H3B·NMe3 σ-complexes of d8 [(L1)Rh][BArF4] and d10 [(L1)Ag][BArF4] (where L1 = 2,6-bis-[1-(2,6-diisopropylphenylimino)ethyl]pyridine) have been prepared and structurally characterised. Analysis of the molecular and electronic structures reveal important but subtle differences in the nature of the bonding in these σ-complexes, which differ only by the identity of the metal centre and the d-electron count. With Rh the amine–borane binds in an η22 fashion, whereas at Ag the unsymmetrical {Ag⋯H3B·NMe3} unit suggests a structure lying between the η22 and η1 extremes.

Graphical abstract: A d10 Ag(i) amine–borane σ-complex and comparison with a d8 Rh(i) analogue: structures on the η1 to η2:η2 continuum

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Article information


Submitted
05 Mar 2019
Accepted
01 Apr 2019
First published
23 Apr 2019

This article is Open Access

Dalton Trans., 2019,48, 9776-9781
Article type
Paper

A d10 Ag(I) amine–borane σ-complex and comparison with a d8 Rh(I) analogue: structures on the η1 to η22 continuum

A. Johnson, A. J. Martínez-Martínez, S. A. Macgregor and A. S. Weller, Dalton Trans., 2019, 48, 9776
DOI: 10.1039/C9DT00971J

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