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Article: Chemistry of Tetraosmium Carbonyl Clusters with Phenylazopyridine Ligands: Synthesis, Structure and Electrochemistry

TitleChemistry of Tetraosmium Carbonyl Clusters with Phenylazopyridine Ligands: Synthesis, Structure and Electrochemistry
Authors
KeywordsElectrochemistry
Osmium carbonyl cluster
Phenylazopyridine
Issue Date2001
PublisherSpringer New York LLC. The Journal's web site is located at http://springerlink.metapress.com/openurl.asp?genre=journal&issn=1040-7278
Citation
Journal Of Cluster Science, 2001, v. 12 n. 4, p. 595-617 How to Cite?
AbstractTwo new tetraosmium carbonyl clusters [Os4(μ-H)4(CO)11 {η1-NC5H4(N=N) C6H5}] (1) and [Os4(μ-H)4(CO)10{η2-NC 5H4(N = N)C6H5}] (2) were synthesized from the reaction of [Os4(μ-H)4(CO)12] with two equivalent of 2-phenylazopyridine ligand in dichloromethane at ambient temperature using trimethylamine-N-oxide as the decarbonylation reagent. Subsequent chromatographic purification led to the isolation of 1 and 2 as stable orange and blue solids in respectively 25 and 13% yields. Complex 1 converted to 2 in a 25% yield in refluxing chloroform. Treating a solution of [Os4(μ-H)4(CO)12] in dichloromethane with two equivalent of 3-phenylazopyridine led to the formation of another two new clusters [Os4(μ-H)4(CO)11 {η1-NC5H4(N = N)C6H5}] (3) and [Os4(μ-H)4(CO)10(NMe3){η 1-NC5H4(N=N)C6H5}] (4), which could be isolated as yellow solids in 34% and 21% yields respectively. Thermolysis of 3 or 4 in refluxing n-hexane gives [Os4(μ-H)3(CO)10{μ-η 3-NC5H3(N=N)C6H5}] (5) in 24 and 33% yields respectively. Their electronic absorption properties and electrochemical behavior are also reported.
Persistent Identifierhttp://hdl.handle.net/10722/68988
ISSN
2015 Impact Factor: 1.664
2015 SCImago Journal Rankings: 0.416
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorLi, Yen_HK
dc.contributor.authorWong, WTen_HK
dc.date.accessioned2010-09-06T06:09:32Z-
dc.date.available2010-09-06T06:09:32Z-
dc.date.issued2001en_HK
dc.identifier.citationJournal Of Cluster Science, 2001, v. 12 n. 4, p. 595-617en_HK
dc.identifier.issn1040-7278en_HK
dc.identifier.urihttp://hdl.handle.net/10722/68988-
dc.description.abstractTwo new tetraosmium carbonyl clusters [Os4(μ-H)4(CO)11 {η1-NC5H4(N=N) C6H5}] (1) and [Os4(μ-H)4(CO)10{η2-NC 5H4(N = N)C6H5}] (2) were synthesized from the reaction of [Os4(μ-H)4(CO)12] with two equivalent of 2-phenylazopyridine ligand in dichloromethane at ambient temperature using trimethylamine-N-oxide as the decarbonylation reagent. Subsequent chromatographic purification led to the isolation of 1 and 2 as stable orange and blue solids in respectively 25 and 13% yields. Complex 1 converted to 2 in a 25% yield in refluxing chloroform. Treating a solution of [Os4(μ-H)4(CO)12] in dichloromethane with two equivalent of 3-phenylazopyridine led to the formation of another two new clusters [Os4(μ-H)4(CO)11 {η1-NC5H4(N = N)C6H5}] (3) and [Os4(μ-H)4(CO)10(NMe3){η 1-NC5H4(N=N)C6H5}] (4), which could be isolated as yellow solids in 34% and 21% yields respectively. Thermolysis of 3 or 4 in refluxing n-hexane gives [Os4(μ-H)3(CO)10{μ-η 3-NC5H3(N=N)C6H5}] (5) in 24 and 33% yields respectively. Their electronic absorption properties and electrochemical behavior are also reported.en_HK
dc.languageengen_HK
dc.publisherSpringer New York LLC. The Journal's web site is located at http://springerlink.metapress.com/openurl.asp?genre=journal&issn=1040-7278en_HK
dc.relation.ispartofJournal of Cluster Scienceen_HK
dc.subjectElectrochemistryen_HK
dc.subjectOsmium carbonyl clusteren_HK
dc.subjectPhenylazopyridineen_HK
dc.titleChemistry of Tetraosmium Carbonyl Clusters with Phenylazopyridine Ligands: Synthesis, Structure and Electrochemistryen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1040-7278&volume=12&issue=4&spage=595&epage=617&date=2001&atitle=Chemistry+of+tetraosmium+carbonyl+clusters+with+phenylazopyridine+ligands:++synthesis,+structure+and+electrochemistryen_HK
dc.identifier.emailWong, WT: wtwong@hku.hken_HK
dc.identifier.authorityWong, WT=rp00811en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1023/A:1014250416239en_HK
dc.identifier.scopuseid_2-s2.0-0035545156en_HK
dc.identifier.hkuros68319en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0035545156&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume12en_HK
dc.identifier.issue4en_HK
dc.identifier.spage595en_HK
dc.identifier.epage617en_HK
dc.identifier.isiWOS:000174506500005-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridLi, Y=7502089799en_HK
dc.identifier.scopusauthoridWong, WT=7403973084en_HK

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