Cluster build-up using the [Ru(η5-C5H5)(MeCN)3]+ cation; synthesis and structural characterisation of some cyclopentadienyl-substituted hexa- and hepta-nuclear ruthenium carbido clusters

Jack Lewis; Catherine A. Morewood; Paul R. Raithby; M. Carmen Ramirez De Arellano

doi:10.1039/a702837g

Cluster build-up using the [Ru(η⁵-C₅H₅)(MeCN)₃]⁺ cation; synthesis and structural characterisation of some cyclopentadienyl-substituted hexa- and hepta-nuclear ruthenium carbido clusters

Jack Lewis, Catherine A. Morewood, Paul R. Raithby, M. Carmen Ramirez De Arellano

University of Cambridge

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Abstract

The reaction of the dianion [Ru₅C(CO)₁₄]^2- with 2 equivalents of [Ru(η⁵-C₅H₅)(MeCN)₃]⁺ afforded two new clusters, the hexanuclear anion [Ru₆C(CO)₁₄(η⁵-C₅H ₅)]^- 1 and the neutral heptanuclear cluster [Ru₇C(CO)_14- (η⁵-C₅H₅)₂] 2 in high yields. In a similar reaction the hexanuclear dianion [Ru₆C(CO)₁₆]^2- may be 'capped' by [Ru(η⁵-C₅H₅)(MeCN)₃]⁺ to afford good yields of both the heptanuclear monoanion [Ru₇C(CO)₁₆(η⁵-C₅H ₅)]^- 3 and the neutral cluster 2. The clusters 1, 2 and 3 have been fully characterised by both spectroscopic and crystallographic methods. The crystal structures show that the metal framework of all three clusters is based on a central Ru₆C octahedral core. In 1 one of the core atoms is co-ordinated to an η⁵-C₅H₅ ligand, while in 2 an additional Ru(η⁵-C₅H₅) group caps one triangular face of the octahedron to give a capped octahedral framework. In 3 the single η⁵-C₅H₅ ligand is co-ordinated to the capping Ru atom in the capped octahedral framework.

Original language	English
Pages (from-to)	3335-3341
Number of pages	7
Journal	Journal of the Chemical Society - Dalton Transactions
Issue number	18
DOIs	https://doi.org/10.1039/a702837g
Publication status	Published - 21 Sept 1997

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General Chemistry

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Lewis, J., Morewood, C. A., Raithby, P. R., & Ramirez De Arellano, M. C. (1997). Cluster build-up using the [Ru(η⁵-C₅H₅)(MeCN)₃]⁺ cation; synthesis and structural characterisation of some cyclopentadienyl-substituted hexa- and hepta-nuclear ruthenium carbido clusters. Journal of the Chemical Society - Dalton Transactions, (18), 3335-3341. https://doi.org/10.1039/a702837g

Cluster build-up using the [Ru(η⁵-C₅H₅)(MeCN)₃]⁺ cation; synthesis and structural characterisation of some cyclopentadienyl-substituted hexa- and hepta-nuclear ruthenium carbido clusters. / Lewis, Jack; Morewood, Catherine A.; Raithby, Paul R. et al.
In: Journal of the Chemical Society - Dalton Transactions, No. 18, 21.09.1997, p. 3335-3341.

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

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title = "Cluster build-up using the [Ru(η5-C5H5)(MeCN)3]+ cation; synthesis and structural characterisation of some cyclopentadienyl-substituted hexa- and hepta-nuclear ruthenium carbido clusters",

abstract = "The reaction of the dianion [Ru5C(CO)14]2- with 2 equivalents of [Ru(η5-C5H5)(MeCN)3]+ afforded two new clusters, the hexanuclear anion [Ru6C(CO)14(η5-C5H 5)]- 1 and the neutral heptanuclear cluster [Ru7C(CO)14- (η5-C5H5)2] 2 in high yields. In a similar reaction the hexanuclear dianion [Ru6C(CO)16]2- may be 'capped' by [Ru(η5-C5H5)(MeCN)3]+ to afford good yields of both the heptanuclear monoanion [Ru7C(CO)16(η5-C5H 5)]- 3 and the neutral cluster 2. The clusters 1, 2 and 3 have been fully characterised by both spectroscopic and crystallographic methods. The crystal structures show that the metal framework of all three clusters is based on a central Ru6C octahedral core. In 1 one of the core atoms is co-ordinated to an η5-C5H5 ligand, while in 2 an additional Ru(η5-C5H5) group caps one triangular face of the octahedron to give a capped octahedral framework. In 3 the single η5-C5H5 ligand is co-ordinated to the capping Ru atom in the capped octahedral framework.",

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N2 - The reaction of the dianion [Ru5C(CO)14]2- with 2 equivalents of [Ru(η5-C5H5)(MeCN)3]+ afforded two new clusters, the hexanuclear anion [Ru6C(CO)14(η5-C5H 5)]- 1 and the neutral heptanuclear cluster [Ru7C(CO)14- (η5-C5H5)2] 2 in high yields. In a similar reaction the hexanuclear dianion [Ru6C(CO)16]2- may be 'capped' by [Ru(η5-C5H5)(MeCN)3]+ to afford good yields of both the heptanuclear monoanion [Ru7C(CO)16(η5-C5H 5)]- 3 and the neutral cluster 2. The clusters 1, 2 and 3 have been fully characterised by both spectroscopic and crystallographic methods. The crystal structures show that the metal framework of all three clusters is based on a central Ru6C octahedral core. In 1 one of the core atoms is co-ordinated to an η5-C5H5 ligand, while in 2 an additional Ru(η5-C5H5) group caps one triangular face of the octahedron to give a capped octahedral framework. In 3 the single η5-C5H5 ligand is co-ordinated to the capping Ru atom in the capped octahedral framework.

AB - The reaction of the dianion [Ru5C(CO)14]2- with 2 equivalents of [Ru(η5-C5H5)(MeCN)3]+ afforded two new clusters, the hexanuclear anion [Ru6C(CO)14(η5-C5H 5)]- 1 and the neutral heptanuclear cluster [Ru7C(CO)14- (η5-C5H5)2] 2 in high yields. In a similar reaction the hexanuclear dianion [Ru6C(CO)16]2- may be 'capped' by [Ru(η5-C5H5)(MeCN)3]+ to afford good yields of both the heptanuclear monoanion [Ru7C(CO)16(η5-C5H 5)]- 3 and the neutral cluster 2. The clusters 1, 2 and 3 have been fully characterised by both spectroscopic and crystallographic methods. The crystal structures show that the metal framework of all three clusters is based on a central Ru6C octahedral core. In 1 one of the core atoms is co-ordinated to an η5-C5H5 ligand, while in 2 an additional Ru(η5-C5H5) group caps one triangular face of the octahedron to give a capped octahedral framework. In 3 the single η5-C5H5 ligand is co-ordinated to the capping Ru atom in the capped octahedral framework.

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Cluster build-up using the [Ru(η⁵-C₅H₅)(MeCN)₃]⁺ cation; synthesis and structural characterisation of some cyclopentadienyl-substituted hexa- and hepta-nuclear ruthenium carbido clusters

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