A d10 Ag(i) amine-borane σ-complex and comparison with a d8 Rh(i) analogue

structures on the η1 to η2:η2 continuum

Alice Johnson, Antonio J. Martínez-Martínez, Stuart A. Macgregor, Andrew S. Weller

Research output: Contribution to journalArticle

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 η2:η2 fashion, whereas at Ag the unsymmetrical {AgH3B·NMe3} unit suggests a structure lying between the η2:η2 and η1 extremes.

Original languageEnglish
Pages (from-to)9776-9781
Number of pages6
JournalDalton Transactions
Volume48
Issue number26
Early online date23 Apr 2019
DOIs
Publication statusE-pub ahead of print - 23 Apr 2019

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Boranes
Molecular structure
Electronic structure
Amines
Metals
Electrons
pyridine

ASJC Scopus subject areas

  • Inorganic Chemistry

Cite this

Johnson, Alice ; Martínez-Martínez, Antonio J. ; Macgregor, Stuart A. ; Weller, Andrew S. / A d10 Ag(i) amine-borane σ-complex and comparison with a d8 Rh(i) analogue : structures on the η1 to η2:η2 continuum. In: Dalton Transactions. 2019 ; Vol. 48, No. 26. pp. 9776-9781.
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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 η2:η2 fashion, whereas at Ag the unsymmetrical {AgH3B·NMe3} unit suggests a structure lying between the η2:η2 and η1 extremes.",
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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 η2:η2 continuum. / Johnson, Alice; Martínez-Martínez, Antonio J.; Macgregor, Stuart A.; Weller, Andrew S.

In: Dalton Transactions, Vol. 48, No. 26, 23.04.2019, p. 9776-9781.

Research output: Contribution to journalArticle

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AB - 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 η2:η2 fashion, whereas at Ag the unsymmetrical {AgH3B·NMe3} unit suggests a structure lying between the η2:η2 and η1 extremes.

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