Synthesis and structural characterisation of [Os6(CO)126-C6H 6)2]

Jack Lewis, Chi Keung Li, Muna R.A. Al-Mandhary, Paul R. Raithby

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

Reaction of [Os4H2(CO)12]2- with [Os(η6-C6H6)(MeCN)3][BF 4]2 in CH2Cl2 affords the pentanuclear cluster [Os5H2(CO)126-C 6H6)] which upon treatment with 1,8-diazabicyclo[5.4.0]undec-7-ene in CH2Cl2 gives the dianion [Os5(CO)126-C6H 6)]2-, whose subsequent reaction with [Os(η6-C6H6)(MeCN)3][BF 4]2 provides the new bis(benzene) cluster [Os6(CO)126-C6H 6)2] in ca. 40% yield; the crystal structure of [Os6(CO)126-C6H 6)2] shows that the six osmium atoms adopt a bicapped tetrahedral geometry with both benzene ligands in terminal η6 sites but co-ordinated to two osmium atoms with different metal connectivities.

Original languageEnglish
Pages (from-to)1915-1916
Number of pages2
JournalJournal of the Chemical Society, Dalton Transactions
Issue number12
DOIs
Publication statusPublished - 1993

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Osmium
Benzene
Atoms
Crystal structure
Metals
Ligands
Geometry
1,8-diazabicyclo(5.4.0)undec-7-ene

ASJC Scopus subject areas

  • Chemistry(all)

Cite this

Synthesis and structural characterisation of [Os6(CO)126-C6H 6)2]. / Lewis, Jack; Li, Chi Keung; Al-Mandhary, Muna R.A.; Raithby, Paul R.

In: Journal of the Chemical Society, Dalton Transactions, No. 12, 1993, p. 1915-1916.

Research output: Contribution to journalArticle

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title = "Synthesis and structural characterisation of [Os6(CO)12(η6-C6H 6)2]",
abstract = "Reaction of [Os4H2(CO)12]2- with [Os(η6-C6H6)(MeCN)3][BF 4]2 in CH2Cl2 affords the pentanuclear cluster [Os5H2(CO)12(η6-C 6H6)] which upon treatment with 1,8-diazabicyclo[5.4.0]undec-7-ene in CH2Cl2 gives the dianion [Os5(CO)12(η6-C6H 6)]2-, whose subsequent reaction with [Os(η6-C6H6)(MeCN)3][BF 4]2 provides the new bis(benzene) cluster [Os6(CO)12(η6-C6H 6)2] in ca. 40{\%} yield; the crystal structure of [Os6(CO)12(η6-C6H 6)2] shows that the six osmium atoms adopt a bicapped tetrahedral geometry with both benzene ligands in terminal η6 sites but co-ordinated to two osmium atoms with different metal connectivities.",
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AU - Raithby, Paul R.

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N2 - Reaction of [Os4H2(CO)12]2- with [Os(η6-C6H6)(MeCN)3][BF 4]2 in CH2Cl2 affords the pentanuclear cluster [Os5H2(CO)12(η6-C 6H6)] which upon treatment with 1,8-diazabicyclo[5.4.0]undec-7-ene in CH2Cl2 gives the dianion [Os5(CO)12(η6-C6H 6)]2-, whose subsequent reaction with [Os(η6-C6H6)(MeCN)3][BF 4]2 provides the new bis(benzene) cluster [Os6(CO)12(η6-C6H 6)2] in ca. 40% yield; the crystal structure of [Os6(CO)12(η6-C6H 6)2] shows that the six osmium atoms adopt a bicapped tetrahedral geometry with both benzene ligands in terminal η6 sites but co-ordinated to two osmium atoms with different metal connectivities.

AB - Reaction of [Os4H2(CO)12]2- with [Os(η6-C6H6)(MeCN)3][BF 4]2 in CH2Cl2 affords the pentanuclear cluster [Os5H2(CO)12(η6-C 6H6)] which upon treatment with 1,8-diazabicyclo[5.4.0]undec-7-ene in CH2Cl2 gives the dianion [Os5(CO)12(η6-C6H 6)]2-, whose subsequent reaction with [Os(η6-C6H6)(MeCN)3][BF 4]2 provides the new bis(benzene) cluster [Os6(CO)12(η6-C6H 6)2] in ca. 40% yield; the crystal structure of [Os6(CO)12(η6-C6H 6)2] shows that the six osmium atoms adopt a bicapped tetrahedral geometry with both benzene ligands in terminal η6 sites but co-ordinated to two osmium atoms with different metal connectivities.

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