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Article: Triosmium alkylidyne clusters containing monophosphine and chiral diphosphine ligands. Crystal and molecular structures of [Os3(µ-H)2(CO)9(µ3-CPBunPh2)] and (R)-[Os3(µ-H)2(CO)8{µ3-CPPh2CH(Me)CH2PPh2}]

TitleTriosmium alkylidyne clusters containing monophosphine and chiral diphosphine ligands. Crystal and molecular structures of [Os3(µ-H)2(CO)9(µ3-CPBunPh2)] and (R)-[Os3(µ-H)2(CO)8{µ3-CPPh2CH(Me)CH2PPh2}]
Authors
Issue Date1995
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, 1995, n. 17, p. 2831-2836 How to Cite?
AbstractThe cluster [Os3(µ-H)3(CO)9(µ3-CCl)] reacted with excess of butyldiphenylphosphine, in the presence of 1,8-diazabicyclo[5.4.0]undec-7-ene (dbu), to give the complex [Os3(µ-H)2(CO)9(µ3-CPBunPh2)]1. The optically active diphosphine (R)-Ph2PCH(Me)CH2PPh2 reacted similarly to give two isomers, (R)-[Os3(µ-H)2(CO)9{µ3-CPPh2CH(Me)CH2PPh2}]2a and (R)-[Os3(µ-H)2(CO)9{µ3-CPPh2CH2CH(Me)PPh2}]2b, which have been spectroscopically characterised. Complex 2a readily undergoes decarbonylation, followed by the formation of Os–P bond, to afford an octacarbonyl chiral cluster complex (R)-[Os3(µ-H2)(CO)8{µ3-CPPh2CH(Me)CH2PPh2}]3. The molecular structures of 1 and 3 have been established by X-ray crystallography. Complex 1 contains a triosmium alkylidyne metal core with the BunPh2P moiety bonded to the apical carbon atom through the phosphorus atom. On the other hand, the structure of 3, which also contains a phosphine-substituted µ3-C ligand bonded to three osmium atoms at the base, is characterised by the formation of a six-membered osmacycle with the centre of chirality being retained in the phosphine ligand of the complex.
Persistent Identifierhttp://hdl.handle.net/10722/69997
ISSN
2002 Impact Factor: 3.023
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorWong, WYen_HK
dc.contributor.authorWong, WTen_HK
dc.date.accessioned2010-09-06T06:18:45Z-
dc.date.available2010-09-06T06:18:45Z-
dc.date.issued1995en_HK
dc.identifier.citationJournal of the Chemical Society Dalton Transactions, 1995, n. 17, p. 2831-2836en_HK
dc.identifier.issn1472-7773en_HK
dc.identifier.urihttp://hdl.handle.net/10722/69997-
dc.description.abstractThe cluster [Os3(µ-H)3(CO)9(µ3-CCl)] reacted with excess of butyldiphenylphosphine, in the presence of 1,8-diazabicyclo[5.4.0]undec-7-ene (dbu), to give the complex [Os3(µ-H)2(CO)9(µ3-CPBunPh2)]1. The optically active diphosphine (R)-Ph2PCH(Me)CH2PPh2 reacted similarly to give two isomers, (R)-[Os3(µ-H)2(CO)9{µ3-CPPh2CH(Me)CH2PPh2}]2a and (R)-[Os3(µ-H)2(CO)9{µ3-CPPh2CH2CH(Me)PPh2}]2b, which have been spectroscopically characterised. Complex 2a readily undergoes decarbonylation, followed by the formation of Os–P bond, to afford an octacarbonyl chiral cluster complex (R)-[Os3(µ-H2)(CO)8{µ3-CPPh2CH(Me)CH2PPh2}]3. The molecular structures of 1 and 3 have been established by X-ray crystallography. Complex 1 contains a triosmium alkylidyne metal core with the BunPh2P moiety bonded to the apical carbon atom through the phosphorus atom. On the other hand, the structure of 3, which also contains a phosphine-substituted µ3-C ligand bonded to three osmium atoms at the base, is characterised by the formation of a six-membered osmacycle with the centre of chirality being retained in the phosphine ligand of the complex.-
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.titleTriosmium alkylidyne clusters containing monophosphine and chiral diphosphine ligands. Crystal and molecular structures of [Os3(µ-H)2(CO)9(µ3-CPBunPh2)] and (R)-[Os3(µ-H)2(CO)8{µ3-CPPh2CH(Me)CH2PPh2}]en_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1472-7773&volume=&spage=2831&epage=2836&date=1995&atitle=Triosmium+alkylidyne+clusters+containing+monophosphine+and+chiral+diphosphine+ligands.+Crystal+and+molecular+structures+of+[Os3(m-H)2(CO)9)(m3-CP(nBu)Ph)2}]+and+(R)-+[Os3(m-H)2-(CO)8(PPh2)(m3-CPPh2CHen_HK
dc.identifier.emailWong, WT: wtwong@hku.hken_HK
dc.identifier.authorityWong, WT=rp00811en_HK
dc.identifier.doi10.1039/DT9950002831-
dc.identifier.scopuseid_2-s2.0-37049077059-
dc.identifier.hkuros14582en_HK
dc.identifier.issue17-
dc.identifier.spage2831-
dc.identifier.epage2836-
dc.identifier.isiWOS:A1995RU73000018-
dc.publisher.placeUnited Kingdom-

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