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Article: Synthesis of [{Os3(CO)10(μ2-H)}2{μ2,μ2-NC6H4C6H4N}] and [{Os3(CO)9(μ2-H)PPh3}2{μ2,μ2-NC6H4C6H4N}]: Carbon–carbon bond formation promoted by organorhodium species

TitleSynthesis of [{Os3(CO)10(μ2-H)}2{μ2,μ2-NC6H4C6H4N}] and [{Os3(CO)9(μ2-H)PPh3}2{μ2,μ2-NC6H4C6H4N}]: Carbon–carbon bond formation promoted by organorhodium species
Authors
KeywordsCarbon-carbon bond formation
Osmium cluster
Rhodium compound
X-ray crystal structures
Issue Date2006
PublisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/ica
Citation
Inorganica Chimica Acta, 2006, v. 359 n. 11, p. 3632-3638 How to Cite?
AbstractSynthesis and characterization of linked cluster [{Os3(CO)10(μ2-H)}2{μ2,μ2-NC6H4C6H4N}] (1) from the reaction of [Os3Rh(μ-H)3(CO)12] with aniline in the presence of an excess amount of 4-vinyl phenol in refluxing heptane is reported. A similar reaction with [Os3(CO)10(NCMe)2] as starting material gave a known compound, [Os3(CO)10(μ2-H)(μ2-HNC6H5)] (2). The treatment of complexes 1 and 2 with Wilkinson’s catalyst in refluxing heptane respectively, yielded [{Os3(CO)9(μ2-H)PPh3}2{μ2,μ2-NC6H4C6H4N}] (3). An interesting and unexpected C–C coupling of phenyl-amido ligands was observed in complexes 1 and 3, which is believed to be catalysed by the organometallic rhodium species. The newly synthesized compounds 1 and 3 were fully characterized by IR, 1H NMR spectroscopy, mass spectroscopy, elemental analysis, and X-ray crystallography. Both structures 1 and 3 comprise two triangles of osmium atoms. The two triangular osmium metal cores are linked by a bi-amido ligand via the two nitrogen atoms N(1) and N(1)* and N(1) and N(2), at their equatorial sites. The electronic absorption spectra of complexes 1, 2, and 3 display both low energy absorption, dπ (Os) → π* (amido) metal-to-ligand charge-transfer (MLCT) transition, and π → π* intra-ligand electronic transitions of the amido and bi-amido ligands.
Persistent Identifierhttp://hdl.handle.net/10722/69403
ISSN
2015 Impact Factor: 1.918
2015 SCImago Journal Rankings: 0.584
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorLau, PKJen_HK
dc.contributor.authorWong, WTen_HK
dc.date.accessioned2010-09-06T06:13:20Z-
dc.date.available2010-09-06T06:13:20Z-
dc.date.issued2006en_HK
dc.identifier.citationInorganica Chimica Acta, 2006, v. 359 n. 11, p. 3632-3638en_HK
dc.identifier.issn0020-1693en_HK
dc.identifier.urihttp://hdl.handle.net/10722/69403-
dc.description.abstractSynthesis and characterization of linked cluster [{Os3(CO)10(μ2-H)}2{μ2,μ2-NC6H4C6H4N}] (1) from the reaction of [Os3Rh(μ-H)3(CO)12] with aniline in the presence of an excess amount of 4-vinyl phenol in refluxing heptane is reported. A similar reaction with [Os3(CO)10(NCMe)2] as starting material gave a known compound, [Os3(CO)10(μ2-H)(μ2-HNC6H5)] (2). The treatment of complexes 1 and 2 with Wilkinson’s catalyst in refluxing heptane respectively, yielded [{Os3(CO)9(μ2-H)PPh3}2{μ2,μ2-NC6H4C6H4N}] (3). An interesting and unexpected C–C coupling of phenyl-amido ligands was observed in complexes 1 and 3, which is believed to be catalysed by the organometallic rhodium species. The newly synthesized compounds 1 and 3 were fully characterized by IR, 1H NMR spectroscopy, mass spectroscopy, elemental analysis, and X-ray crystallography. Both structures 1 and 3 comprise two triangles of osmium atoms. The two triangular osmium metal cores are linked by a bi-amido ligand via the two nitrogen atoms N(1) and N(1)* and N(1) and N(2), at their equatorial sites. The electronic absorption spectra of complexes 1, 2, and 3 display both low energy absorption, dπ (Os) → π* (amido) metal-to-ligand charge-transfer (MLCT) transition, and π → π* intra-ligand electronic transitions of the amido and bi-amido ligands.-
dc.languageengen_HK
dc.publisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/icaen_HK
dc.relation.ispartofInorganica Chimica Actaen_HK
dc.subjectCarbon-carbon bond formation-
dc.subjectOsmium cluster-
dc.subjectRhodium compound-
dc.subjectX-ray crystal structures-
dc.titleSynthesis of [{Os3(CO)10(μ2-H)}2{μ2,μ2-NC6H4C6H4N}] and [{Os3(CO)9(μ2-H)PPh3}2{μ2,μ2-NC6H4C6H4N}]: Carbon–carbon bond formation promoted by organorhodium speciesen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0020-1693&volume=359&spage=3632&epage=3638&date=2006&atitle=Synthesis+of+[{Os3(CO)10(m2-H)}2{m2,m2-NC6H4C6H4N}]and+[{Os3(CO)9(m2-H)PPh3}2(m2,+m2-NC6H4N}]:+Carbon-Carbon+Bond+Formation+Promoted+by+Organorhodium+Speen_HK
dc.identifier.emailWong, WT: wtwong@hku.hken_HK
dc.identifier.authorityWong, WT=rp00811en_HK
dc.identifier.doi10.1016/j.ica.2005.12.046-
dc.identifier.scopuseid_2-s2.0-33745897616-
dc.identifier.hkuros127653en_HK
dc.identifier.volume359-
dc.identifier.issue11-
dc.identifier.spage3632-
dc.identifier.epage3638-
dc.identifier.isiWOS:000239475800027-
dc.publisher.placeNetherlands-

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