Synthetic, structural and reaction chemistry of transition metal complexes containing the mesitylborylene ligand

Coombs, Deborah ORCID: https://orcid.org/0000-0002-4616-6001, Aldridge, Simon and Jones, Cameron 2002. Synthetic, structural and reaction chemistry of transition metal complexes containing the mesitylborylene ligand. Journal of the Chemical Society, Dalton Transactions (20) , pp. 3851-3858. 10.1039/b206348b

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Abstract

The synthesis, spectroscopic and structural characterization of the bromo-boryl complexes (η5-C5R4R′)Fe(CO)2B(2,4,6-Me3C6H2)Br (R = R′ = H, 2; R = H, R′ = Me, 3; R = R′ = Me, 4) are reported. These are shown to be versatile substrates for the synthesis of both asymmetric boryl complexes [e.g. (η5-C5H5)Fe(CO)2B(2,4,6-Me3C6H2)OC6H4tBu-4, 6], and bridging borylene complexes {e.g. [(η5-C5H4R)Fe(CO)2]2B(2,4,6-Me3C6H2), R = H, 7; R = Me, 8} via substitution chemistry with retention of the metal–boron bond. Complexes 7 and 8 are the first reported examples of structurally characterized bridging borylene complexes without a supporting M–M bond. Photolytically induced CO loss from [(η5-C5H5)Fe(CO)2]2B(2,4,6-Me3C6H2) yields the complex [(η5-C5H5)Fe(CO)]2(μ2-CO)[μ2-B(2,4,6-Me3C6H2)] (11), which features a supported bridging borylene ligand.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Chemistry
Publisher:	Royal Society of Chemistry
ISSN:	1472-7773
Last Modified:	12 Jul 2024 11:12
URI:	https://orca.cardiff.ac.uk/id/eprint/170544

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