C-Pt(IV) activation in new trimethylplatinum(IV) complexes: nucleophilic attack at metal-carbon bond

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dc.contributor.authorRomero, P
dc.contributor.authorValderrama, M
dc.contributor.authorContreras, R
dc.contributor.authorBoys, D
dc.date.accessioned2024-01-10T13:47:13Z
dc.date.available2024-01-10T13:47:13Z
dc.date.issued2003
dc.description.abstractReaction of the tetranuclear complex [Me3PtI](4) with the ligand o-Ph2P(E)C6H4SMe (E = S, Se) in a 1:4 molar ratio yields the mononuclear neutral complexes [Me3PtI(eta(2)-MeSC6H4P(E)Ph-2-S,S)] (E = S(1), Se(2)). Iodide abstraction from these compounds with AgPF6 in the presence of a ligand L (PPh3, py) leads to cationic complexes of the type [Me3Pt(eta(2)-MeSC6H4P(E)Ph-2-E,S)L]PF6 [E = S, L = PPh3 (3), Py (4); E = Se, L = Py (5)]. However, using complex 2 and the ligand PPh3 under identical conditions induces a reductive elimination reaction affording the Pt(II) complex [MePt(eta(2)-MeSC6H4PPh2-P,S)(PPh3)]PF6 (6). Reactions of complexes 3 and 4 with NaI reveal a nucleophilic attack of the iodide to one of the methyl groups bonded to the platinum center generating a series of subsequent side reactions. Complex [Me3Pt{eta(2)-MeSC6H4P(S)Ph-2-S,S}(py)]PF6.CH2Cl2 (4) was additionally characterised by X-ray diffraction. The platinum atom exhibits a distorted octahedral coordination, bonded to three methyl carbon atoms in a facial arrangement; a bidentate chelate S,S'-bonded ligand and a nitrogen atom of the pyridine ligand complete the metal coordination sphere. (C) 2003 Elsevier Science B.V. All rights reserved.
dc.fechaingreso.objetodigital16-04-2024
dc.format.extent9 páginas
dc.fuente.origenWOS
dc.identifier.doi10.1016/S0022-328X(03)00177-3
dc.identifier.eissn1872-8561
dc.identifier.issn0022-328X
dc.identifier.urihttps://doi.org/10.1016/S0022-328X(03)00177-3
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/79247
dc.identifier.wosidWOS:000182997000012
dc.information.autorucQuímica;Contreras R;S/I;49428
dc.information.autorucQuímica;Valderrama M;S/I;98729
dc.issue.numero1-2
dc.language.isoen
dc.nota.accesoContenido parcial
dc.pagina.final110
dc.pagina.inicio102
dc.publisherELSEVIER SCIENCE SA
dc.revistaJOURNAL OF ORGANOMETALLIC CHEMISTRY
dc.rightsacceso restringido
dc.subjectphosphino-methylthioether complexes
dc.subjecttrimethylplatinum(IV) complexes
dc.subjectnucleophilic attack
dc.subjectreductive elimination
dc.subjectoxidative addition
dc.subjectNUCLEAR MAGNETIC-RESONANCE
dc.subjectC-H ACTIVATION
dc.subjectREDUCTIVE ELIMINATION-REACTIONS
dc.subjectCRYSTAL-STRUCTURE
dc.subjectPLATINUM(II) COMPLEXES
dc.subjectDINUCLEAR COMPLEXES
dc.subjectCHELATE COMPLEXES
dc.subjectHALIDE-COMPLEXES
dc.subjectNMR-SPECTROSCOPY
dc.subjectBRIDGING LIGANDS
dc.subject.ods12 Responsible Consumption and Production
dc.subject.odspa12 Producción y consumo responsable
dc.titleC-Pt(IV) activation in new trimethylplatinum(IV) complexes: nucleophilic attack at metal-carbon bond
dc.typeartículo
dc.volumen673
sipa.codpersvinculados49428
sipa.codpersvinculados98729
sipa.indexWOS
sipa.indexScopus
sipa.trazabilidadCarga SIPA;09-01-2024
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