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Article: Synthesis, characterization and crystal structures of osmium–rhodium mixed-metal clusters containing pentamethylcyclopentadienyl ligand: [Os3Rh(μ-CO)2(CO)9(η5-Cp*)], [Os3Rh2(μ-H)(μ-CO)2(CO)8(η5-Cp*)(μ2-η5,η1-CH2C5Me4)] and [Os3Rh(μ3-H)(μ-Cl)(μ-CO)(CO)9(η5-Cp*)]

TitleSynthesis, characterization and crystal structures of osmium–rhodium mixed-metal clusters containing pentamethylcyclopentadienyl ligand: [Os3Rh(μ-CO)2(CO)9(η5-Cp*)], [Os3Rh2(μ-H)(μ-CO)2(CO)8(η5-Cp*)(μ2-η5,η1-CH2C5Me4)] and [Os3Rh(μ3-H)(μ-Cl)(μ-CO)(CO)9(η5-Cp*)]
Authors
KeywordsOsmium
Rhodium
Clusters
Pentamethylcyclopentadienyl
Carbonyl
Issue Date1999
PublisherElsevier SA. The Journal's web site is located at http://www.elsevier.com/locate/jorganchem
Citation
Journal of Organometallic Chemistry, 1999, v. 580 n. 1, p. 48-55 How to Cite?
AbstractTreatment of the anionic triosmium cluster [N(PPh3)2][Os3(μ-H)(CO)11] with one equivalent of [RhCp*(MeCN)3][{PF6}2] [Cp*=pentamethylcyclopentadiene] yielded three Cp*-containing clusters including [Os3Rh(μ-H)2(μ-CO)(CO)9(η5-Cp*)] 1, [Os3Rh(μ-CO)2(CO)9(η5-Cp*)] 2 and [Os3Rh2(μ-H)(μ-CO)2(CO)8(η5-Cp*)(μ2-η5,η1-CH2C5Me4)] 3. Solid state vacuum pyrolysis of 2 gave 1 in moderate yield via the replacement of a bridging carbonyl by two bridging hydrides. The coupling reaction of [N(PPh3)2][Os3(μ-H)(CO)11] with the monocationic complex, [RhCp*(dppe)Cl][PF6] [dppe=bis(diphenylphosphino)ethane] afforded the tetranuclear cluster [Os3Rh(μ3-H)(μ-Cl)(μ-CO)(CO)9(η5-Cp*)] 4 in a moderate yield. Clusters 2–4 have been fully characterized by both spectroscopic and crystallographic methods. The X-ray structure analysis shows that 3 comprises an edge-bridging tetrahedron in which one of the pentamethylcyclopentadienyl units adopts a novel μ2-η5,η1-bonding mode across a Os–Rh bond. Cluster 4 is a tetranuclear osmium–rhodium mixed-metal cluster containing a chloride, bridging across the wing-tips of the butterfly core.
Persistent Identifierhttp://hdl.handle.net/10722/69963
ISSN
2015 Impact Factor: 2.336
2015 SCImago Journal Rankings: 0.732
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorHung, SYWen_HK
dc.contributor.authorWong, WTen_HK
dc.date.accessioned2010-09-06T06:18:26Z-
dc.date.available2010-09-06T06:18:26Z-
dc.date.issued1999en_HK
dc.identifier.citationJournal of Organometallic Chemistry, 1999, v. 580 n. 1, p. 48-55en_HK
dc.identifier.issn0022-328Xen_HK
dc.identifier.urihttp://hdl.handle.net/10722/69963-
dc.description.abstractTreatment of the anionic triosmium cluster [N(PPh3)2][Os3(μ-H)(CO)11] with one equivalent of [RhCp*(MeCN)3][{PF6}2] [Cp*=pentamethylcyclopentadiene] yielded three Cp*-containing clusters including [Os3Rh(μ-H)2(μ-CO)(CO)9(η5-Cp*)] 1, [Os3Rh(μ-CO)2(CO)9(η5-Cp*)] 2 and [Os3Rh2(μ-H)(μ-CO)2(CO)8(η5-Cp*)(μ2-η5,η1-CH2C5Me4)] 3. Solid state vacuum pyrolysis of 2 gave 1 in moderate yield via the replacement of a bridging carbonyl by two bridging hydrides. The coupling reaction of [N(PPh3)2][Os3(μ-H)(CO)11] with the monocationic complex, [RhCp*(dppe)Cl][PF6] [dppe=bis(diphenylphosphino)ethane] afforded the tetranuclear cluster [Os3Rh(μ3-H)(μ-Cl)(μ-CO)(CO)9(η5-Cp*)] 4 in a moderate yield. Clusters 2–4 have been fully characterized by both spectroscopic and crystallographic methods. The X-ray structure analysis shows that 3 comprises an edge-bridging tetrahedron in which one of the pentamethylcyclopentadienyl units adopts a novel μ2-η5,η1-bonding mode across a Os–Rh bond. Cluster 4 is a tetranuclear osmium–rhodium mixed-metal cluster containing a chloride, bridging across the wing-tips of the butterfly core.-
dc.languageengen_HK
dc.publisherElsevier SA. The Journal's web site is located at http://www.elsevier.com/locate/jorganchemen_HK
dc.relation.ispartofJournal of Organometallic Chemistryen_HK
dc.subjectOsmium-
dc.subjectRhodium-
dc.subjectClusters-
dc.subjectPentamethylcyclopentadienyl-
dc.subjectCarbonyl-
dc.titleSynthesis, characterization and crystal structures of osmium–rhodium mixed-metal clusters containing pentamethylcyclopentadienyl ligand: [Os3Rh(μ-CO)2(CO)9(η5-Cp*)], [Os3Rh2(μ-H)(μ-CO)2(CO)8(η5-Cp*)(μ2-η5,η1-CH2C5Me4)] and [Os3Rh(μ3-H)(μ-Cl)(μ-CO)(CO)9(η5-Cp*)]en_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0022-328X&volume=580&spage=48&epage=55&date=1999&atitle=Synthesis,+characterization+and+crystal+structures+of+osmium-rhodium+mixed-metal+clusters+containing+pentamethylcyclopentadienyl+ligand:+[Os3Rh(m-CO)2(CO)9(h5-Cp*)],[Os3Rh2(m-H)(m-CO)2(CO)8(h5-Cp*)(m2-en_HK
dc.identifier.emailWong, WT: wtwong@hku.hken_HK
dc.identifier.authorityWong, WT=rp00811en_HK
dc.identifier.doi10.1016/S0022-328X(98)01094-8-
dc.identifier.scopuseid_2-s2.0-0002675363-
dc.identifier.hkuros45555en_HK
dc.identifier.volume580-
dc.identifier.issue1-
dc.identifier.spage48-
dc.identifier.epage55-
dc.identifier.isiWOS:000080198900007-

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