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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
Title | 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 |
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Authors | |
Keywords | Carbon-carbon bond formation Osmium cluster Rhodium compound X-ray crystal structures |
Issue Date | 2006 |
Publisher | Elsevier 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? |
Abstract | Synthesis 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 Identifier | http://hdl.handle.net/10722/69403 |
ISSN | 2023 Impact Factor: 2.7 2023 SCImago Journal Rankings: 0.386 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Lau, PKJ | en_HK |
dc.contributor.author | Wong, WT | en_HK |
dc.date.accessioned | 2010-09-06T06:13:20Z | - |
dc.date.available | 2010-09-06T06:13:20Z | - |
dc.date.issued | 2006 | en_HK |
dc.identifier.citation | Inorganica Chimica Acta, 2006, v. 359 n. 11, p. 3632-3638 | en_HK |
dc.identifier.issn | 0020-1693 | en_HK |
dc.identifier.uri | http://hdl.handle.net/10722/69403 | - |
dc.description.abstract | Synthesis 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.language | eng | en_HK |
dc.publisher | Elsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/ica | en_HK |
dc.relation.ispartof | Inorganica Chimica Acta | en_HK |
dc.subject | Carbon-carbon bond formation | - |
dc.subject | Osmium cluster | - |
dc.subject | Rhodium compound | - |
dc.subject | X-ray crystal structures | - |
dc.title | 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 | en_HK |
dc.type | Article | en_HK |
dc.identifier.openurl | http://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+Spe | en_HK |
dc.identifier.email | Wong, WT: wtwong@hku.hk | en_HK |
dc.identifier.authority | Wong, WT=rp00811 | en_HK |
dc.identifier.doi | 10.1016/j.ica.2005.12.046 | - |
dc.identifier.scopus | eid_2-s2.0-33745897616 | - |
dc.identifier.hkuros | 127653 | en_HK |
dc.identifier.volume | 359 | - |
dc.identifier.issue | 11 | - |
dc.identifier.spage | 3632 | - |
dc.identifier.epage | 3638 | - |
dc.identifier.isi | WOS:000239475800027 | - |
dc.publisher.place | Netherlands | - |
dc.identifier.issnl | 0020-1693 | - |