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Article: Synthesis and characterisation of triosmium nitrite clusters containing phosphine ligands

TitleSynthesis and characterisation of triosmium nitrite clusters containing phosphine ligands
Authors
Issue Date1998
PublisherRoyal Society of Chemistry. The Journal's web site is located at http://www.rsc.org/dalton
Citation
Journal Of The Chemical Society - Dalton Transactions, 1998 n. 3, p. 447-453 How to Cite?
AbstractThe nitrite cluster [Os3(n-H)(CO)IO(u-r|J-NO2)] 1 reacted with trimethylamine W-oxide in CH2C12 to give a pair of isomers with formula [Os3(u-H)(CO)9(u-r|2-NO2)(NMej)] 2a and 2b in moderate yields. Reaction of 1 with PPh, and Me3NO in CH2C12 gave a pair of isomers [Osj(u-H)(CO)9(u-n2-NOj)(PPh3)] 3a and 3b and [Os3(u-H)(CO)8(u-nz-NO2)(PPh3)2] 4. With c-l,2-bis(diphenylphosphino)ethylene (dppen) and Me3NO in CH2C12,1 gave a pair of isomers [Os3(u-H)(CO)8(u-r|2-NO2)(dppen)] 5a and 5b, and [Os3(u-H)(CO)6(u-Ti2-NO2)(dppen)2] 6. Reaction of 1 with bis(diphenylphosphino)acetylene (dppa) and Me3NO in CH2C12 gave [Os3(u-H)(CO)8(u-T(J-NO2)(dppa)] 7 in good yield. The dppa co-ordinates to two Os atoms to form a six-membered ring suffering from severe angle strain in which the carbon-carbon triple bond is maintained. AH the products were characterised by IR, NMR and FAB mass spectroscopies. All these clusters contain an asymmetrically bridging NO2~ ligand along one Os-Os edge of the triosmium metal framework, as is evident from structural determinations of 2a, 2b, 3b, 4, 5a, 6 and 7.
Persistent Identifierhttp://hdl.handle.net/10722/69806
ISSN
1999 Impact Factor: 2.31
References

 

DC FieldValueLanguage
dc.contributor.authorHui, BKMen_HK
dc.contributor.authorWong, WTen_HK
dc.date.accessioned2010-09-06T06:17:01Z-
dc.date.available2010-09-06T06:17:01Z-
dc.date.issued1998en_HK
dc.identifier.citationJournal Of The Chemical Society - Dalton Transactions, 1998 n. 3, p. 447-453en_HK
dc.identifier.issn0300-9246en_HK
dc.identifier.urihttp://hdl.handle.net/10722/69806-
dc.description.abstractThe nitrite cluster [Os3(n-H)(CO)IO(u-r|J-NO2)] 1 reacted with trimethylamine W-oxide in CH2C12 to give a pair of isomers with formula [Os3(u-H)(CO)9(u-r|2-NO2)(NMej)] 2a and 2b in moderate yields. Reaction of 1 with PPh, and Me3NO in CH2C12 gave a pair of isomers [Osj(u-H)(CO)9(u-n2-NOj)(PPh3)] 3a and 3b and [Os3(u-H)(CO)8(u-nz-NO2)(PPh3)2] 4. With c-l,2-bis(diphenylphosphino)ethylene (dppen) and Me3NO in CH2C12,1 gave a pair of isomers [Os3(u-H)(CO)8(u-r|2-NO2)(dppen)] 5a and 5b, and [Os3(u-H)(CO)6(u-Ti2-NO2)(dppen)2] 6. Reaction of 1 with bis(diphenylphosphino)acetylene (dppa) and Me3NO in CH2C12 gave [Os3(u-H)(CO)8(u-T(J-NO2)(dppa)] 7 in good yield. The dppa co-ordinates to two Os atoms to form a six-membered ring suffering from severe angle strain in which the carbon-carbon triple bond is maintained. AH the products were characterised by IR, NMR and FAB mass spectroscopies. All these clusters contain an asymmetrically bridging NO2~ ligand along one Os-Os edge of the triosmium metal framework, as is evident from structural determinations of 2a, 2b, 3b, 4, 5a, 6 and 7.en_HK
dc.languageengen_HK
dc.publisherRoyal Society of Chemistry. The Journal's web site is located at http://www.rsc.org/daltonen_HK
dc.relation.ispartofJournal of the Chemical Society - Dalton Transactionsen_HK
dc.titleSynthesis and characterisation of triosmium nitrite clusters containing phosphine ligandsen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1472-7773&volume=&spage=447&epage=453&date=1998&atitle=Synthesis+and+characterisation+of+triosmium+nitrite+clusters+containing+phosphine+ligandsen_HK
dc.identifier.emailWong, WT: wtwong@hku.hken_HK
dc.identifier.authorityWong, WT=rp00811en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1039/A707588J-
dc.identifier.scopuseid_2-s2.0-33749435640en_HK
dc.identifier.hkuros32563en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-33749435640&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.issue3en_HK
dc.identifier.spage447en_HK
dc.identifier.epage453en_HK
dc.identifier.scopusauthoridHui, BKM=7004503628en_HK
dc.identifier.scopusauthoridWong, WT=7403973084en_HK

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