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pubmed-article:16711703rdf:typepubmed:Citationlld:pubmed
pubmed-article:16711703lifeskim:mentionsumls-concept:C1704241lld:lifeskim
pubmed-article:16711703lifeskim:mentionsumls-concept:C1883073lld:lifeskim
pubmed-article:16711703lifeskim:mentionsumls-concept:C0678594lld:lifeskim
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pubmed-article:16711703pubmed:issue11lld:pubmed
pubmed-article:16711703pubmed:dateCreated2006-5-22lld:pubmed
pubmed-article:16711703pubmed:abstractTextThe reactions of [Pt(NH3)2(NHCOtBu)2] and TlX3 (X = NO3-, Cl-, CF3CO2-) yielded dinuclear [{Pt(ONO2)(NH3)2(NHCOtBu)}Tl(ONO2)2(MeOH)] (2) and trinuclear complexes [{PtX(RNH2)2(NHCOtBu)2}2Tl]+ [X = NO3- (3), Cl- (5), CF3CO2- (6)], which were spectroscopically and structurally characterized. Strong Pt-Tl interaction in the complexes in solutions was indicated by both 195Pt and 205Tl NMR spectra, which exhibit very large one-bond spin-spin coupling constants between the heteronuclei (1J(PtTl)), 146.8 and 88.84 kHz for 2 and 3, respectively. Both the X-ray photoelectron spectra and the 195Pt chemical shifts reveal that the complexes have Pt centers whose oxidation states are close to that of Pt(III). Characterization of these complexes by X-ray diffraction analysis confirms that the Pt and Tl atoms are held together by very short Pt-Tl bonds and are supported by the bridging amidate ligands. The Pt-Tl bonds are shorter than 2.6 Angstrom, indicating a strong metal-metal attraction between these two metals. Compound 2 was found to activate the C-H bond of acetone to yield a platinum(IV) acetonate complex. This reactivity corresponds to the property of Pt(III) complexes. Density functional theory calculations were able to reproduce the large magnitude of the metal-metal spin-spin coupling constants. The couplings are sensitive to the computational model because of a delicate balance of metal 6s contributions in the frontier orbitals. The computational analysis reveals the role of the axial ligands in the magnitude of the coupling constants.lld:pubmed
pubmed-article:16711703pubmed:languageenglld:pubmed
pubmed-article:16711703pubmed:journalhttp://linkedlifedata.com/r...lld:pubmed
pubmed-article:16711703pubmed:statusPubMed-not-MEDLINElld:pubmed
pubmed-article:16711703pubmed:monthMaylld:pubmed
pubmed-article:16711703pubmed:issn0020-1669lld:pubmed
pubmed-article:16711703pubmed:authorpubmed-author:ChenWanzhiWlld:pubmed
pubmed-article:16711703pubmed:authorpubmed-author:ZieglerTomTlld:pubmed
pubmed-article:16711703pubmed:authorpubmed-author:GlaserJuliusJlld:pubmed
pubmed-article:16711703pubmed:authorpubmed-author:MatsumotoKazu...lld:pubmed
pubmed-article:16711703pubmed:authorpubmed-author:AutschbachJoc...lld:pubmed
pubmed-article:16711703pubmed:authorpubmed-author:LiuFenghuiFlld:pubmed
pubmed-article:16711703pubmed:authorpubmed-author:Le...lld:pubmed
pubmed-article:16711703pubmed:authorpubmed-author:MaliarikMikha...lld:pubmed
pubmed-article:16711703pubmed:issnTypePrintlld:pubmed
pubmed-article:16711703pubmed:day29lld:pubmed
pubmed-article:16711703pubmed:volume45lld:pubmed
pubmed-article:16711703pubmed:ownerNLMlld:pubmed
pubmed-article:16711703pubmed:authorsCompleteYlld:pubmed
pubmed-article:16711703pubmed:pagination4526-36lld:pubmed
pubmed-article:16711703pubmed:year2006lld:pubmed
pubmed-article:16711703pubmed:articleTitleSpectral and structural characterization of amidate-bridged platinum-thallium complexes with strong metal-metal bonds.lld:pubmed
pubmed-article:16711703pubmed:affiliationDepartment of Chemistry, Zhejiang University, Hangzhou 310028, China. chenwzz@zju.edu.cnlld:pubmed
pubmed-article:16711703pubmed:publicationTypeJournal Articlelld:pubmed