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Article: Synthesis and characterisation of triosmium nitrite clusters containing phosphine ligands
Title | Synthesis and characterisation of triosmium nitrite clusters containing phosphine ligands |
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Authors | |
Issue Date | 1998 |
Publisher | Royal 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? |
Abstract | The 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 Identifier | http://hdl.handle.net/10722/69806 |
ISSN | |
References |
DC Field | Value | Language |
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dc.contributor.author | Hui, BKM | en_HK |
dc.contributor.author | Wong, WT | en_HK |
dc.date.accessioned | 2010-09-06T06:17:01Z | - |
dc.date.available | 2010-09-06T06:17:01Z | - |
dc.date.issued | 1998 | en_HK |
dc.identifier.citation | Journal Of The Chemical Society - Dalton Transactions, 1998 n. 3, p. 447-453 | en_HK |
dc.identifier.issn | 0300-9246 | en_HK |
dc.identifier.uri | http://hdl.handle.net/10722/69806 | - |
dc.description.abstract | The 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.language | eng | en_HK |
dc.publisher | Royal Society of Chemistry. The Journal's web site is located at http://www.rsc.org/dalton | en_HK |
dc.relation.ispartof | Journal of the Chemical Society - Dalton Transactions | en_HK |
dc.title | Synthesis and characterisation of triosmium nitrite clusters containing phosphine ligands | en_HK |
dc.type | Article | en_HK |
dc.identifier.openurl | http://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+ligands | en_HK |
dc.identifier.email | Wong, WT: wtwong@hku.hk | en_HK |
dc.identifier.authority | Wong, WT=rp00811 | en_HK |
dc.description.nature | link_to_subscribed_fulltext | - |
dc.identifier.doi | 10.1039/A707588J | - |
dc.identifier.scopus | eid_2-s2.0-33749435640 | en_HK |
dc.identifier.hkuros | 32563 | en_HK |
dc.relation.references | http://www.scopus.com/mlt/select.url?eid=2-s2.0-33749435640&selection=ref&src=s&origin=recordpage | en_HK |
dc.identifier.issue | 3 | en_HK |
dc.identifier.spage | 447 | en_HK |
dc.identifier.epage | 453 | en_HK |
dc.identifier.scopusauthorid | Hui, BKM=7004503628 | en_HK |
dc.identifier.scopusauthorid | Wong, WT=7403973084 | en_HK |
dc.identifier.issnl | 0300-9246 | - |