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Article: The synthesis and reactivity of the heptanuclear dianion [Os7(CO)20]2− including the synthesis and structural characterizations of the compounds [Os7(CO)20(AuPEt)3 2] and [Os8(CO)20(η6-C6H6]

TitleThe synthesis and reactivity of the heptanuclear dianion [Os7(CO)20]2− including the synthesis and structural characterizations of the compounds [Os7(CO)20(AuPEt)3 2] and [Os8(CO)20(η6-C6H6]
Authors
KeywordsCluster carbonyl
Osmium
Gold
Arene
Crystal structure
Issue Date1995
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, 1995, v. 6 n. 1, p. 163-173 How to Cite?
AbstractReduction of the heptaosmium cluster [Os7(CO)21] With [Et4N][NH4) gives the cluster dianion [Os7(CO)20]2−,1, in high yield. The reaction of the dianion with [AuPR 3Cl] (R=Et or Ph) in the presence of TlPF6 forms [Os7((CO)20(AuPR 3)2] [R=Et (2a);R = Ph(2b)] in 80% yield, while the corresponding reaction with (Os(C6H6)(CH3CN)3]2+ gives [Os8(CO)20 (η 6-C6H6)] (3) in reasonable yield (ca. 30%). The dianion,1, and the clusters2 and3 have been fully characterized by bout spectroscopic and crystallographic methods. The crystal structure of the [Ph4P]+ salt of1 shows that the metals in the anion adopt a capped octahedral geometry, with all twenty carbonyl ligands in terminal sites. The metal core geometry in2a is best described as a tricapped octahedron, and is based on the structure of the dianion1 with two adjacent octahedral faces capped by the Au atoms of the two AuPEt3 groups. In a similar fashion, the geometry of3 is related to that of1 with the addition of an Os(C6H6) unit capped to a triangular face, to give a bicapped octahedral framework.
Persistent Identifierhttp://hdl.handle.net/10722/69396
ISSN
2015 Impact Factor: 1.664
2015 SCImago Journal Rankings: 0.416

 

DC FieldValueLanguage
dc.contributor.authorAmoroso, AJen_HK
dc.contributor.authorJohnson, BFGen_HK
dc.contributor.authorLewis, Jen_HK
dc.contributor.authorLi, CKen_HK
dc.contributor.authorMorewood, CAen_HK
dc.contributor.authorRaithby, PRen_HK
dc.contributor.authorVargas, MDen_HK
dc.contributor.authorWong, WTen_HK
dc.date.accessioned2010-09-06T06:13:17Z-
dc.date.available2010-09-06T06:13:17Z-
dc.date.issued1995en_HK
dc.identifier.citationJournal of Cluster Science, 1995, v. 6 n. 1, p. 163-173en_HK
dc.identifier.issn1040-7278en_HK
dc.identifier.urihttp://hdl.handle.net/10722/69396-
dc.description.abstractReduction of the heptaosmium cluster [Os7(CO)21] With [Et4N][NH4) gives the cluster dianion [Os7(CO)20]2−,1, in high yield. The reaction of the dianion with [AuPR 3Cl] (R=Et or Ph) in the presence of TlPF6 forms [Os7((CO)20(AuPR 3)2] [R=Et (2a);R = Ph(2b)] in 80% yield, while the corresponding reaction with (Os(C6H6)(CH3CN)3]2+ gives [Os8(CO)20 (η 6-C6H6)] (3) in reasonable yield (ca. 30%). The dianion,1, and the clusters2 and3 have been fully characterized by bout spectroscopic and crystallographic methods. The crystal structure of the [Ph4P]+ salt of1 shows that the metals in the anion adopt a capped octahedral geometry, with all twenty carbonyl ligands in terminal sites. The metal core geometry in2a is best described as a tricapped octahedron, and is based on the structure of the dianion1 with two adjacent octahedral faces capped by the Au atoms of the two AuPEt3 groups. In a similar fashion, the geometry of3 is related to that of1 with the addition of an Os(C6H6) unit capped to a triangular face, to give a bicapped octahedral framework.-
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.rightsThe original publication is available at www.springerlink.com-
dc.subjectCluster carbonyl-
dc.subjectOsmium-
dc.subjectGold-
dc.subjectArene-
dc.subjectCrystal structure-
dc.titleThe synthesis and reactivity of the heptanuclear dianion [Os7(CO)20]2− including the synthesis and structural characterizations of the compounds [Os7(CO)20(AuPEt)3 2] and [Os8(CO)20(η6-C6H6]en_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1040-7278&volume=&spage=&epage=&date=1995&atitle=The+synthesis+and+reactivity+of+the+Heptanuclear+Dianion+[Os7(CO)20]2-.+Including+the+synthesis+and+structural+characterization+of+the+compounds+[Os7(CO)20(AuPEt3)2]+and+[Os8(CO)20(h6-C6H6)]en_HK
dc.identifier.emailWong, WT: wtwong@hku.hken_HK
dc.identifier.authorityWong, WT=rp00811en_HK
dc.identifier.doi10.1007/BF01175843-
dc.identifier.scopuseid_2-s2.0-0011545998-
dc.identifier.hkuros14519en_HK
dc.identifier.volume6-
dc.identifier.issue1-
dc.identifier.spage163-
dc.identifier.epage173-
dc.publisher.placeUnited States-

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