Homoleptic 'sandwich' complexes of substituted tris(methimazolyl)borate ligands with ruthenium, rhodium and palladium

Philip J. Bailey; Nicola L. Bell; Gary S. Nichol

doi:10.1039/c3dt51150b

Homoleptic 'sandwich' complexes of substituted tris(methimazolyl)borate ligands with ruthenium, rhodium and palladium

Philip J. Bailey^*, Nicola L. Bell, Gary S. Nichol

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

Abstract

The pursuit of heteroleptic 'half-sandwich' complexes of boron substituted anionic and charge-neutral tris(methimazolyl)borate ligands is described. The formation of the homoleptic 'sandwich' complexes was found to be favoured when the metal precursor contains labile ligands. When unable to form these homoleptic complexes Tm is shown to preferentially coordinate in a kappa(2)-[S,S] fashion. This study reinforces previous assertions that the Tm ligand preferentially adopts the kappa(2)-[S,S] mode when coordinated to electron rich metal centres and demonstrates the strong electron donor properties of substituted Tm ligands.

Original language	English
Pages (from-to)	11281-11294
Number of pages	14
Journal	Dalton Transactions
Volume	42
Issue number	31
DOIs	https://doi.org/10.1039/c3dt51150b
Publication status	Published - 2013

Keywords / Materials (for Non-textual outputs)

ASYMMETRIC TRANSFER HYDROGENATION
METAL-COMPLEXES
BORATE LIGANDS
C-H
CHEMISTRY
KETONES
IRIDIUM
BEARING
BONDS
TRIS(DIMETHYLAMINO)BORANE

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title = "Homoleptic 'sandwich' complexes of substituted tris(methimazolyl)borate ligands with ruthenium, rhodium and palladium",

abstract = "The pursuit of heteroleptic 'half-sandwich' complexes of boron substituted anionic and charge-neutral tris(methimazolyl)borate ligands is described. The formation of the homoleptic 'sandwich' complexes was found to be favoured when the metal precursor contains labile ligands. When unable to form these homoleptic complexes Tm is shown to preferentially coordinate in a kappa(2)-[S,S] fashion. This study reinforces previous assertions that the Tm ligand preferentially adopts the kappa(2)-[S,S] mode when coordinated to electron rich metal centres and demonstrates the strong electron donor properties of substituted Tm ligands.",

keywords = "ASYMMETRIC TRANSFER HYDROGENATION, METAL-COMPLEXES, BORATE LIGANDS, C-H, CHEMISTRY, KETONES, IRIDIUM, BEARING, BONDS, TRIS(DIMETHYLAMINO)BORANE",

author = "Bailey, {Philip J.} and Bell, {Nicola L.} and Nichol, {Gary S.}",

year = "2013",

doi = "10.1039/c3dt51150b",

language = "English",

volume = "42",

pages = "11281--11294",

journal = "Dalton Transactions",

issn = "1477-9226",

publisher = "Royal Society of Chemistry",

number = "31",

}

TY - JOUR

T1 - Homoleptic 'sandwich' complexes of substituted tris(methimazolyl)borate ligands with ruthenium, rhodium and palladium

AU - Bailey, Philip J.

AU - Bell, Nicola L.

AU - Nichol, Gary S.

PY - 2013

Y1 - 2013

N2 - The pursuit of heteroleptic 'half-sandwich' complexes of boron substituted anionic and charge-neutral tris(methimazolyl)borate ligands is described. The formation of the homoleptic 'sandwich' complexes was found to be favoured when the metal precursor contains labile ligands. When unable to form these homoleptic complexes Tm is shown to preferentially coordinate in a kappa(2)-[S,S] fashion. This study reinforces previous assertions that the Tm ligand preferentially adopts the kappa(2)-[S,S] mode when coordinated to electron rich metal centres and demonstrates the strong electron donor properties of substituted Tm ligands.

AB - The pursuit of heteroleptic 'half-sandwich' complexes of boron substituted anionic and charge-neutral tris(methimazolyl)borate ligands is described. The formation of the homoleptic 'sandwich' complexes was found to be favoured when the metal precursor contains labile ligands. When unable to form these homoleptic complexes Tm is shown to preferentially coordinate in a kappa(2)-[S,S] fashion. This study reinforces previous assertions that the Tm ligand preferentially adopts the kappa(2)-[S,S] mode when coordinated to electron rich metal centres and demonstrates the strong electron donor properties of substituted Tm ligands.

KW - ASYMMETRIC TRANSFER HYDROGENATION

KW - METAL-COMPLEXES

KW - BORATE LIGANDS

KW - C-H

KW - CHEMISTRY

KW - KETONES

KW - IRIDIUM

KW - BEARING

KW - BONDS

KW - TRIS(DIMETHYLAMINO)BORANE

U2 - 10.1039/c3dt51150b

DO - 10.1039/c3dt51150b

M3 - Article

C2 - 23811763

SN - 1477-9226

VL - 42

SP - 11281

EP - 11294

JO - Dalton Transactions

JF - Dalton Transactions

IS - 31

ER -

Homoleptic 'sandwich' complexes of substituted tris(methimazolyl)borate ligands with ruthenium, rhodium and palladium

Abstract

Keywords / Materials (for Non-textual outputs)

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