Cluster Chemsitry. 96. Penta- and hexa-nuclear ruthenium cluster complexes derived from reactions of cyclopentadienes with Ru5(?5-C2PPh2)(?-PPh2)(CO)13

Adams, Chris J.; Bruce, Michael I.; Skelton, Brian W.; White, Allan H.

doi:10.1007/bf01379058

Cited by 8 publications

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References 17 publications

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“…Such migration of an arene ligand from a mononuclear species onto a cluster has previously been observed in the synthesis of 9 and of a cyclopentadienyl ligand in the formation of [Ru 6 C(µ 3 -CH)(µ-PPh 2 ) 2 (CO) 10 (η 5 -C 5 H 5 )]. 23 Thus, the neutral, octanuclear cluster 'Ru 8 C(CO) 16 (η 5 -C 5 H 5 ) 2 ' is not formed from the reaction, and it may be that the negative charge on 3 is sufficiently delocalised to prevent the ionic coupling reaction from occurring, and the ligand-replacement reaction takes precedence.…”

Section: Resultsmentioning

confidence: 99%

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

Lewis¹,

Morewood²,

Raithby³

et al. 1997

J. Chem. Soc., Dalton Trans.

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The reaction of the dianion [Ru 5 C(CO) 14 ] 2Ϫ with 2 equivalents of [Ru(η 5 -C 5 H 5 )(MeCN) 3 ] ϩ afforded two new clusters, the hexanuclear anion [Ru 6 C(CO) 14 (η 5 -C 5 H 5 )] Ϫ 1 and the neutral heptanuclear cluster [Ru 7 C(CO) 14 -(η 5 -C 5 H 5 ) 2 ] 2 in high yields. In a similar reaction the hexanuclear dianion [Ru 6 C(CO) 16 ] 2Ϫ may be 'capped' by [Ru(η 5 -C 5 H 5 )(MeCN) 3 ] ϩ to afford good yields of both the heptanuclear monoanion [Ru 7 C(CO) 16 (η 5 -C 5 H 5 )] Ϫ 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 Ru 6 C octahedral core. In 1 one of the core atoms is co-ordinated to an η 5 -C 5 H 5 ligand, while in 2 an additional Ru(η 5 -C 5 H 5 ) group caps one triangular face of the octahedron to give a capped octahedral framework. In 3 the single η 5 -C 5 H 5 ligand is co-ordinated to the capping Ru atom in the capped octahedral framework.

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Section: Resultsmentioning

confidence: 99%